Aarushi Global School - 2013
Tamil Nadu, India - Jayakannan

Allen-Stevenson School, The - 2007
NY, USA - David Trower

Anglo-American School - 2009
Moscow, Russian Federation - Jon Zurfluh

Arusha School - 2012
Arusha, Tanzania - Mrs Angelina Kitigua

Athenian School, The - 2010
CA, USA - Eric Niles

Aurora West College Preparatory Academy - 2014
CO, USA - Alexa Davis

Bangalore International Academy - 2014
Karnataka, India - Mrs. Salomi Rakesh Ratnam

BBOM Mutlu Keçi Ilkokulu (Ozel Yahsi Ilkokulu) - 2014
Mugla, Turkey - Burak Ãœlman

Berkshire School - 2008
MA, USA - Mike Maher

Bishop Garcia Diego High School - 2010
CA, USA - Dr. Paul Harrington

Bridges Academy - 2008
CA, USA - Carl Sabatino

Burr and Burton Academy - 2008
VT, USA - Mark Tashjian

Caedmon School - 2007
NY, USA - Gregory B. Blackburn

Calhoun School, The - 2007
NY, USA - Steve Nelson

Campbell Hall Episcopal - 2008
CA, USA - Rev. Julian P. Bull

Cary Academy - 2008
NC, USA - Dr. Michael Ehrhardt

Cate School - 2008
CA, USA - Benjamin Williams

Chapin School, The - 2007
NY, USA - Patricia T. Hayot

Chewonki Semester School - 2010
ME, USA - Ann Carson

Chinmaya Vidyalaya - 2015
Himachal Pradesh, India - Dr. Sunil Kumar Dhand

Churchill School and Center, The - 2007
NY, USA - Robert Siebert

Colegio Franklin Delano Roosevelt - 2014
Lima Region, Peru - Allana Rumble

Collegiate School - 2007
NY, USA - Lee M. Levison

Columbus School, The - 2014
Antioquia, Colombia - Juan Fernando Mesa

Combretum Educational Trust School - 2014
Khomas, Namibia - Sue Brown

Common Ground High School - 2014
CT, USA - Lizanne Cox

Community Schools of Frankfort - 2009 (5 schools)
IN, USA - Greg Long

Costa Verde International School - 2012
Nayarit, Mexico - Kathleen Nicoletti

Creative Cottage School - 2014
Nairobi, Kenya - Quincy Burgess

Delhi Public School, Bopal - 2014
Gujarat, India - Ms. Vandna Joshi

Dutchess Day School - 2007
NY, USA - John Cissel

Dwight Englewood School - 2009
NJ, USA - Dr. Rodney DeJarnett

Eagle Hill School - 2008
MA, USA - Dr. Peter J. McDonald

Earth School, The - 2013
Kigali, Rwanda - Edna de Bonilla

Epiphany Community Nursery School - 2007
NY, USA - Rudy Zanoni

Ethical Culture Fieldston School - 2008
NY, USA - Mark J. Stanek

Eureka Springs High School - 2012
AR, USA - Warren Utsler

Far Hills Country Day School - 2008
NJ, USA - Jayne Geiger

Future School, The - 2012
Punjab, Pakistan - Waqar Daniel

Gifft Hill School - 2014
St. John, U.S. Virgin Islands - Liz Kinsella

Good Shepherd Christian Junior School - 2013
Central Region, Uganda - John Ssentamu

Grace Church School - 2008
NY, USA - George P. Davison

Green School - 2009
Bali, Indonesia - Chris Thompson

Greenland High School - 2012
AR, USA - John Diesel

Hawaii Preparatory Academy - 2012
HI, USA - Dr. Bill Wiecking

Head Royce School - 2013
CA, USA - Debra Harper

Hewitt School, The - 2007
NY, USA - Joan Lonergan

Hingham High School - 2013
MA, USA - Richard O. Swanson

Hong Kong International School - 2014
Hong Kong Island, Hong Kong - Linda Ann Anderson

Horace Mann - 2009
NY, USA - Dr. Jessica Levenstein

Hotchkiss School, The - 2009
CT, USA - Malcolm McKenzie

Hualalai Academy - 2008
HI, USA - Kate Mulligan

Instituto de Formacion para el Trabajo - 2014
Jalisco, Mexico - Juan Carlos Reyes

Instituto Internacional - 2014
Jalisco, Mexico - Rogelio Sanchez

International Cottage School, The - 2014
Vaud, Switzerland - Christine Deluca

International School of Florence, The - 2013
Tuscany, Italy - Shifra Steinberg

Island School, The - 2009
The Bahamas - Chris Maxey

Joshua Cowell Elementary School - 2012
CA, USA - Bonnie J. Bennett

Kaikorai Valley College - 2014
Otago, New Zealand - Simon McMillan

Kendriya Vidyalaya - 2014
Uttar Pradesh, India - Mr. R.K. BHARTI

Kingswood Oxford - 2012
CT, USA - Dennis Bisgaard

Lauralton Hall - 2014
CT, USA - Antoinette Iadarola
 

Learning Gate Community School - 2012
FL, USA - Patti Girard

Lycee Francais de New York - 2007
NY, USA - Sean Lynch

M.C. Kejriwal Vidyapeeth - 2014
West Bengal, India - Kishan Kejriwal

Mahanaga Maha Vidyalaya - 2014
Southern Province, Sri Lanka - Mrs. Kumuduni Herath

Mandell School, The - 2010
NY, USA - Gabriella Rowe

Marlborough School - 2009
CA, USA - Barbara E. Wagner

Marymount School - 2008
NY, USA - Concepcion Alvar

Maula and Sanga Community Day Schools - 2013
Northern Region, Malawi - Elsen Kisty Mwase

Midland School - 2010
CA, USA - Will Graham

Millbrook School - 2008
NY, USA - Drew Casertano

Montessori School of Maui - 2008
HI, USA - Rene Anderson-Vorfeld

Montgomery Bell Academy - 2009
TN, USA - Brad Gioia

MUSE School - 2013
CA, USA - Shawn Greenbaum

National Sports Academy - 2009
NY, USA - Gun Rand

Nature's Classroom Institute & Montessori School - 2012
WI, USA - Geoffrey E. Bishop

New Horizons Academy - 2009
NV, USA - Dr. Roger D. Gehring

Nightingale-Bamford School - 2007
NY, USA - Paul Burke

North Cross School - 2009
VA, USA - Chris Proctor

Norwood School - 2009
MD, USA - Richard T. Ewing, Jr

Old Trail School - 2015
OH, USA - John Farber

One World Montessori - San Jose - 2008
CA, USA - Rebecca Keith

One World Montessori - Santa Clara - 2008
CA, USA - Rebecca Keith

OP Jindal School, Patratu - 2014
Jharkhand, India - Pramod Kumar

Pacific Ridge School - 2010
CA, USA - Eileen Mulady

Palmer Trinity School - 2011
FL, USA - Sean Murphy

Palos Verdes Peninsula High School - 2012
CA. USA - Ben Smith

Parish Episcopal School - 2008
TX, USA - Gloria Snyder

Pine Point - 2008
CT, USA - Paul Geise

Portledge School - 2007
NY, USA - Steven L. Hahn

Portsmouth Abbey School - 2011
RI, USA - Daniel McDonough

Reece School - 2008
NY, USA - Dr.Thomas F Colasuonno

Rishikesh International School - 2014
Uttarakhand, India - Anita Nautiyal

Riverdale Country School - 2007
NY, USA - Dominic A.A. Randolph

Roots Millennium Schools - 2014
Islamabad, Pakistan - Sabina Zakir

Rye Country Day School - 2014
NY, USA - Scott Nelson

SMS Dutta Memorial Nosegay Public School - 2014
Uttarakhand, India - Chandrakant M. Paneru

Saint Andrew's Episcopal School - 2009
CA, USA - Harry V. McKay, Jr.

School of Environmental Studies - 2008
MN, USA - Dan Bodette

Semillas para una Nueva Humanidad - 2014
Moca, Puerto Rico - Waleska Sallaberry

Shalom Hills International School - 2014
Haryana, India - Ritu Mehta

Sidwell Friends School - 2008
DC, USA - Bruce Stewart

South Kent School - 2010
CT, USA - Andrew Vadnais

Spectrum Charter School - 2014
PA, USA - Michelle A. Johnson

Spence School - 2007
NY, USA - Gordon Jensen

STAR School, The - 2012
AZ, USA - Mark W. Sorensen

Tanzania Green School Network - Kileo School - 2013
Kilimanjaro, Tanzania - Thomas Kaniki

Tanzania Green School Network - Kirya School - 2013
Kilimanjaro, Tanzania - Thomas Kaniki

Tanzania Green School Network - Makomu School - 2013
Kilimanjaro, Tanzania - Thomas Kaniki

Teton Science Schools - 2009
WY, USA - Jack Shea

Teton Valley Community School - 2009
ID, USA - Laurel Loveland

Tonga High School - 2014
Tongatapu, Tonga - Amelia Folaumahina

Town School, The - 2007
NY, USA - Anthony G. Featherston, IV

Trinity College School - 2015
Ontario, Canada - Stuart Grainger

Tuxedo Park School - 2007
NY, USA - Ann Doherty Cooke

United Nations International School - 2007
NY, USA - Dr. Kenneth Wrye

Waldorf School of Baltimore - 2013
MD, USA - Michel Anderson

Webb Schools, The - 2008
CA, USA - Susan A. Nelson

Westbury Friends School - 2008
NY, USA - Geraldine Faivre

Willow School, The - 2008
NJ, USA - Kate Burke Walsh

Woodland Star School - 2012
Central Region, Kenya - Amy McKelvey

Woolman Semes - 2014
CA, USA - Gray Horwitz

Abaarso School of Science & Technology - 2014
Woqooyi Galbeed, Somalia - Jonathan Starr

Abraham Joshua Heschel School - 2011
NY, USA - Roanna Shorofsky

Academy at Charlemont, The - 2008
MA, USA - Todd Sumner

Addu High School - 2015
Maldives - Ibrahim Nadheem

Alexander Dawson School - 2008
CO, USA - Brian Johnson

All Saints' Episcopal Day School - 2008
AZ, USA - Leo Dressel
 
American Kids International Schools - 2013
Istanbul, Turkey - Leyla Sipka

American School of Doha - 2016
Doha, Qatar - Colin Boudreau

American School of Dubai – 2018
Dubai, United Arab Emirates - Michelle Remington

Amra Bint Abdul Rahman Secondary School - 2015
Abu Dhabi, United Arab Emirates - Rugaya Essa

AngloAmerican School - 2016
Nicaragua - Giselle Montenegro

Antilles School - 2008
St. Thomas, U.S. Virgin Islands - Paul Horovitz

Arbor Montessori School - 2008
GA, USA - Jan Deason

Archer School for Girls, The - 2015
CA, USA - Cushman Gillen

Ashbury College - 2016
Ontario, Canada - Norman Southward

ATOLYE5 - 2014
Istanbul, Turkey - Pinar Besikci

Austin Independent School District - 2015 (132 schools)
TX, USA - Dr. Paul Cruz

Austin Jewish Academy - 2008
TX, USA - Cheryl Hersh

Avon Old Farms School - 2009
CT, USA - Kenneth LaRoque

B-KANAE School, Modasa - 2012
Gujarat, India - Virendra Rawat

Bank Street School for Children - 2008
NY, USA - Susan Kluver

Barack Obama Green Charter High School - 2016
NJ, USA - Jill Comerchero

Bedford Central School District - 2011 (7 schools)
NY, USA - Jere Hochman
 
Bella Mente Montessori Academy - 2014
CA, USA - Erin Feeley

Berkeley Carroll School, The - 2008
NY, USA - Robert D. Vitalo

Besant Hill School - 2008
CA, USA - Paul Amadio

Bethlehem Children's School, The - 2015
NY, USA - Heather LeVeille

Beverly Hills High School - 2009
CA, USA - Carter Paysinger

Bharat Mata Higher Secondary School - 2016
Chhattisgarh, India - Panu Halder

Birch Wathen Lenox School, The - 2016
NY, USA - Curtis March

Bishop McGuinness Catholic High School - 2013
NC, USA - George Repass

Bishop O'Dowd High School - 2013
CA, USA - Steve Phelps

Bishop's School, The - 2009
CA, USA - Aimeclaire Roche

Blair Academy - 2008
NJ, USA - Chris Fortunato

Blue Rock School - 2014
NY, USA - Caty Laignel

Blue School, The - 2010
NY, USA - Brad Choyt

Boston College High School - 2008
MA, USA - William J. Kemeza

Boston Public Schools - 2015 (132 schools)
MA, USA - Dr. Tommy Chang

Brearley School, The - 2008
NY, USA - Stephanie Hull

British International School of NY, The - 2009
NY, USA - Michele Schwartz

Bronx Center for Science and Mathematics - 2013
NY, USA - Mr. Edward Tom

Bronx Design & Construction Academy - 2010
NY, USA - Nathaniel Thayer Wight

Brooklyn Friends School - 2010
NY, USA - Dr. Larry Weiss

Brooklyn Heights Montessori School - 2008
NY, USA - Dane Peters

Brooks School - 2008
MA, USA - John Packard

Brookwood School - 2008
MA, USA - John Peterman

Broward County Public Schools - 2015 (368 schools)
FL, USA - Robert Runcie

Browne Academy - 2008
VA, USA - Margot Durkin

Browning School, The - 2008
NY, USA - Stephen Clement

Bryn Mawr School, The - 2008
MD, USA - Maureen Walsh

Bullis Charter School - 2015
CA, USA - Wanny Hersey

Burgundy Farm Country Day School - 2008
VA, USA - Jeff Sindler

Cardigan Mountain School - 2008
NH, USA - David J. McCusker, Jr.

Cardinal Cushing Centers - 2009
MA, USA - JoAnn Simons

Carolina Friends School - 2013
NC, USA - Mike Hanas

Cashmere High School - 2015
Canterbury, New Zealand - Leith Cooper & Mark Wilson

Cathedral School for Boys - 2016
CA, USA - Burns Jones

Castilleja School - 2008
CA, USA - Joan Z. Lonergan

Catherine Cook School, The - 2008
IL, USA - Dr. Michael Roberts

Cayman International School - 2017
Cayman Islands - Jeremy Moore

CEG Agoudade - 2013
Kara, Togo - Alassani Masaoudou

Centennial Elementary - 2014
CO, USA - Erin Kroll

Centennial Elementary School - 2017
OR, USA - Bradley Barnhart

Chapel Hill-Carrboro City Schools - 2016 (19 schools)
NC, USA - Dan Schnitzer

Chapin School Princeton - 2016
NJ, USA - Dr. Pamela Canada Fiander

Charleston Collegiate School - 2008
SC, USA - Dr. J. Robert Shirley

Charlotte Central School - 2008
VT, USA - Greg Marino

Charlotte Country Day School - 2011
NC, USA - Margaret Gragg

Chase Collegiate School - 2008
CT, USA - John D. Fixx

Cheshire Academy - 2009
CT, USA - Gerald Larson

Chicago Public Schools - 2012 (700 schools)
IL, USA - Patricia Taylor

Children's Day School - 2008
CA, USA - Robin Ostenfeld Adams

Children's Learning Academy, The - 2012
Trinidad and Tobago - Melanie Navarro

Choate Rosemary Hall - 2009
CT, USA - Dr. Alex D. Curtis

Chiang Mai International School - 2016
Chiang Mai, Thailand - Peay Tananone

Christchurch School - 2008
VA, USA - John E. Byers

Chugiak High School - 2016
AK, USA - David Legg

Clark County School District - 2015 (367 schools)
NV, USA - Mark Jones
 
Colby School, The - 2009
UT, USA - Joana Nieves

Colegio del Sagrado Corazon - Monjas Inglesas - 2015
Santiago, Chile - Paula Peters

Colegio Merici - 2014
Federal District, Mexico - Gonzalo Esteva Luna Parra

Colegiul National Petru Rares – 2015
Județul Neamț, Romania - Alexandru Iacob & Luminata Virlan

Colorado Academy - 2008
CO, USA - Mike Davis

Colorado Springs School - 2008
CO, USA - Kevin Reel
 
Columbia Grammar & Preparatory School - 2015
NY, USA - Stephanie Avena

Columbine Elementary - 2013
CO, USA - Guillermo Medina

Community School, The - 2011
NH, USA - Jenny Rowe

Conserve School - 2008
WI, USA - Stefan Andreson

Consorcio Educativo Oxford - 2015
Nuevo León, Mexico - Hector Izaguirre

Convent of the Sacred Heart - 2009
NY, USA - Joseph J. Ciancaglini

Convent of the Sacred Heart, Greenwich - 2015
CT, USA - Michael Baber

Council for a Beautiful Israel - Center for Environmental Studies - 2013
Israel -  Haya Yogev

Crossroads School for Arts & Sciences - 2008
CA, USA - Roger Weaver

Curtis School, The - 2011
CA, USA - Peter Smailes

Cutie Cottage - 2015
Malaysia - Tian Yew

Dalton School, The - 2009
NY, USA - Ellen Stein

Darrow School - 2013
NY, USA - Nancy Wolf

Deerfield Academy - 2013
MA, USA - Jeff Jewett

Delaware Valley Friends School - 2011
PA, USA - Bob Mueller

Delhi Public School, Vijayawada - 2014
Andhra Pradesh, India - S.B. Rao

Denver Public Schools - 2015 (178 schools)
CO, USA - Jim Faes

Detroit Public Schools - 2015 (116 schools)
MI, USA - Felicia Venable

DGEyC E.S.E.T. No4 El Palomar - 2015
Argentina - Daniel Horacio Oribe

District of Columbia Public Schools - 2015 (115 schools)
DC, USA - Nathaniel Beers

Don Tyso School of Innovation - 2016
AR, USA - Warren Utsler

Douglas County School District - 2016 (87 schools)
CO, USA - Max Krueger

Douglas Taylor Elementary School - 2012
IL, USA - Bill Truesdale

Drew School - 2014
CA, USA - Sam Cuddeback

Durham Academy - 2009
NC, USA - Edward Costello

Dwight School - 2009
NY, USA - Stephen H. Spahn

East Woods School - 2010
NY, USA - Nathaniel W. Peirce

Echo Horizon School - 2008
CA, USA - Paula R. Dashiell

Educarte Montessori - 2011
Baja California Sur, Mexico - Irma Romo

El Camino Real Charter High School - 2015
CA, USA - Eric Wilson

Ellis School, The - 2011
PA, USA - A. Randol Benedict

Enrico Fermi No. 17 - 2017
NY, USA - Caterina Leone-Mannino

Environmental Charter Schools - 2012 (3 schools)
CA, USA - Marcela Paez

Epiphany School - 2010
WA, USA - Matt Neely

Escuela Campo Alegre - 2015
Capital District, Venezuela - John Heil

Escuela Internacional Sampedrana - 2008
Cortes, Honduras - Ronald Vair

Essex County Vo-Tech Wes Caldwell Campus - 2016
NJ, USA - Avisha Ingram-Robinson

Ethel Walker School, The - 2008
CT, USA - Bessie Speers

Excelsior American School - 2015
Haryana, India - Jayshree Tripathi

Explorer West Middle School - 2008
WA, USA - Evan Hundley

Fairfax County Public Schools - 2016 (219 schools)
VA, USA - Jeffrey Platenberg

Fayette County Public Schools - 2016 (58 schools)
KY, USA - Tresine Logsdon

Fenn School, The - 2010
MA, USA - Jerry Ward

Foothill Elementary - 2014
CO, USA - Melissa Ribordy

Foothill Middle School - 2012
CA, USA - Ariel Owen

Fountain Valley School of Colorado - 2016
CO, USA - Toni Oliveiri-Barton

Fox Lane High School - 2011
NY,  USA - Jere Hochman

Foxcroft School - 2012
VA, USA - Mary Louise Leipheimer

Frederick H. Tuttle Middle School - 2014
VT,  USA - Paul Suk-Hyun Yoon

Fredericksburg Academy - 2008
VA, USA - Robert E. Graves

Friends Academy - 2011
NY, USA - William Morris

Friends School Haverford - 2013
PA, USA - Michael Zimmerman

Friends School of Baltimore - 2011
MD, USA - Matthew Micciche

Friends School of Wilmington - 2016
NC, USA - Brenda Esch

Friends Seminary - 2009
NY, USA - Robert Lauder

Fujimigaoka Educational Institute - 2013
Tokyo, Japan - Susumu Yoshida

Garden Montessori School - 2016
FL, USA - Stephani Ruskin

Garden School of Marietta, The - 2016
GA, USA - Jasmine Darland

Garrison Forest School - 2008
MD, USA - Andrea Perry

Gateway School - 2009
CA, USA - Percy Abram

Geneva Global School - 2012
Central Region, Nepal - Yadav Niroula

George School - 2008
PA, USA - Nancy Starmer

Georgetown Day School - 2008
DC, USA - Russell Shaw

German School DC - 2012
MD, USA - Andrew W. Brown

Germantown Academy - 2012
PA, USA - Rich Schellhas

Gheorghe Rosca Codreanu National College - 2014
Vaslui, Romania - Tita Chiru

Gomez Heritage Elementary - 2016
NE, USA - John Campin

Governor's Academy, The - 2008
MA, USA - Marty Doggett

Gow School, The - 2009
NY, USA - M. Bradley Rogers

Grace Primary School - 2015
Western Cape, South Africa - Darrin McComb

Graland Country Day School - 2008
CO, USA - Bill Waskowitz

Grattan Elementary School - 2014
CA, USA - Matthew Reedy

Green Acres School - 2009
MD, USA - Neal Brown

Green School Aconcagua - 2015
Región de Valparaíso, Chile - Rolando Bienzobas

Green Vale School, The - 2008
NY, USA - Stephen H. Watters

Greenhill School - 2015
TX, USA - Janice LaMendola

Greenhills School - 2009
MI, USA - Peter Fayroian

Greenwich Academy, The - 2008
CT, USA - Molly King

Greenwich Country Day School - 2013
CT, USA - Adam Rohdie

Greenwich High School - 2013
CT, USA - Christopher Winters

Greenwood School, The - 2008
VT, USA - Stewart Miller

Groton School - 2009
MA, USA - Richard B. Commons

Gunnery, The - 2015
CT, USA - Peter Becker

Guiyang Prime International Academy - 2016
Guizhou, China - Richard Howgate

Gunston School, The - 2016
MD, USA - Emily Beck

Gwinnett County Public Schools – Sustainability Steward, 2016
GA, USA - Jessica Holden


Hackley School - 2011
NY, USA - Walter Johnson

Harding Academy - 2009
TN, USA - Ian Craig

Harley School, The - 2015
NY, USA - Terry Smith

Harvard-Westlake School - 2008
CA, USA - Jeanne Huybrechts & Harry Salamandra

Hathaway Brown School - 2008
OH, USA - William Christ

Heathwood Hall Episcopal School - 2009
SC, USA - Charles H. Jones, III

Hebrew High School of New England - 2015
CT, USA - Stephanie Sperber

High Marq Environmental Charter School - 2014
WI, USA - Skylar L. Primm

High Mountain Institute - 2008
CO, USA - Molly P. Barnes

High School for Energy and Technology - 2013
NY, USA - Jauna Johnson

Hill School, The - 2008
PA, USA - David Dougherty

Hill School, The - 2011
VA, USA - Treavor D. Lord

Hilton Head Preparatory School - 2009
SC, USA - Peter Cooper

Hollywood Schoolhouse - 2010
CA, USA - Stephen Bloodworth

Holton-Arms School - 2013
MD, USA - Susanna A. Jones

Holy Spirit Preparatory School - 2011
GA, USA - Garreth Genner

Hopkins School - 2016
CT, USA - Zoe Resch

Houston Independent School District - 2014 (274 schools)
TX, USA - Kellie Williams

Idyllwild Arts Academy - 2011
CA, USA - Brian D. Cohen

Independent School, The - 2010
KS, USA - Dr. Mary Dickerson
 
Indian Mountain School - 2016
CT, USA - Jody Soja

Indus School, The - 2015
Assam, India - Ravi Agarwal
 
Instituto Mexicano Norteamericano de Relaciones Culturales - 2018
Nuevo León, Mexico - Susan Bryan

International School of Kuala Lumpur - 2013
Selangor, Malaysia - Paul Chmelik

International School of the Peninsula - 2009
CA, USA - Philippe Deitz

Irvine Unified School District - 2015 (35 schools)
CA, USA - Suzanne Moore

ISLA Academy - 2015
Puerto Plata, Dominican Republic - Sean Bennett

Jess Schwartz Academy - 2009
AZ, USA - Dr. Janice Johnson

Jesuit College Prep School of Dallas - 2009
TX, USA - Philip Postell

Jose Vasconcelos Escuela Biligue A.C.- 2009
Guanajuato, Mexico - Lic. J. Jesus Ledesma

Journeys School - 2012
WY, USA - Nate McClennen

John Bartram High School - 2016
PA, USA - Damond Warren

Kailash Maansarovar School - 2015
Tamil Nadu, India - Venkata Alagiri

Kalkeri Sangeet Vidyalaya - 2013
Karnataka, India - Naveen Jha

Kamehameha Schools Kapalama - 2011
HI, USA - Michael J. Chun

Kansas City Academy - 2010
MO, USA - Kathy Baldwin-Heitman

Kansas City Public Schools - 2016 (43 schools)
MO, USA, Allan Tunis

Kent Denver School - 2008
CO, USA - Todd Horn

Kent School - 2008
CT, USA - Richardson W. Schell

Key School, The - 2008
MD, USA - Marcella M. Yedid

Keystone International Schools Turkey - 2016
Istanbul, Turkey - Marce Garcia

Keystone School - 2009
TX, USA - Hugh Mcintosh

Keystone Toronto International High School - 2017
Toronto, Canada - Doa Demirsu

King Low Heywood Thomas - 2014
CT, USA - Thomas Main

King Solomon International Business School - 2016
United Kingdom - Michelle Grannell

Kiski School - 2010
PA, USA - Christopher A. Brueningsen

Koan School - 2014
TX, USA - Scott Warren

Kodaikanal International School - 2014
Tamil Nadu, India - Corey Stixrud

La Jolla Country Day School - 2008
CA, USA - Christopher Schuck

La Salle College High School - 2014
PA, USA - Anthony Nguyen

La Scuola d'Italia - 2013
NY, USA - Anna Fiore

Lafayette Nursery School - 2015
CA, USA - Connie Hawkins

Lake Forest Academy - 2008
IL, USA - John A. Strudwick

Lamplighter School, The - 2008
TX, USA - Philip Cohen

Lancaster Country Day School - 2010
PA, USA - Steven D. Lisk

Landon School - 2014
MD, USA - David Armstrong

Lane Tech College Prep High School – 2016
Chicago, IL - Brian Tennison

Latin School of Chicago - 2008
IL, USA - Donald Firke

Lawrencetown National School - 2016
Galway, Ireland - Ann Marie McEvoy

Lawrenceville School, The - 2008
NJ, USA - Elizabeth Duffy

Lawton Chiles Elementary - 2015
FL, USA - Sharon Cutler

Leadership Prep Ocean Hill Charter School (K775) - 2013
NY, USA - Bayoan Ware

Leman Manhattan Preparatory School - 2014
NY, USA - David Azurmendi

Lick-Wilmerding High School - 2008
CA, USA - Al Adams

Life Project Education - 2015
Puntarenas, Costa Rica - Alys Robinson

Lincoln Public Schools - 2015 (56 schools)
NE, USA - Scott Wieskamp

Lindenhurst High School - 2016
NY, USA - Linda Flannelly

Linsly School, The - 2015
WV, USA - Ellie Haizlett

Little Red School House & Elisabeth Irwin High School - 2008
NY, USA - Phil Kassen
 
Loomis Chaffee School, The - 2011
CT, USA - Dr. Sheila Culbert

Los Angeles Unified School District - 2014 (1270 schools)
CA, USA - Christos Chrysiliou

Lovett School, The - 2012
GA, USA - William P. Dunkel

M.S. 51 William Alexander - 2013
NY, USA - Lenore Berner

Mackintosh Academy - Sustainability Steward, 2016
CO, USA - Dianne Dunne

Manchester Essex Regional School District - 2015 (4 schools)
MA, USA - Eric Mager

Manhattan Country School - 2011
NY, USA - Michele Sola

Manlius Pebble Hill School - 2011
NY, USA - Tracy Frank

Maplebrook School - 2013
NY, USA - Robert Conlan

Maret School - 2008
DC, USA - Marjo Talbott

Maria's Public School - 2015
Assam, India - Nellie Ahmed Tanweer

Marin Country Day School - 2008
CA, USA - Lucinda Lee Katz

Marist School - 2012
GA, USA - Amelia Luke

Maryvale High School - 2009
AZ, USA - Phillip Verdugo

McKinney Byrd Academy - 2016
LA, USA - Dr. Sheryl Lewing

Melbourne Girls College - 2015
Victoria, Australia - Karen Money

Memphis University School - 2014
TN, USA - William Barry Ray

Mercersburg Academy - 2008
PA, USA - Douglas Hale

Mia Piccolo Montessori - 2012
FL, USA - Sherlly Brache

Middlesex School - 2011
MA, USA - Kathleen Carroll Giles

Miss Porter's School - 2008
CT, USA - Burch Tracy Ford

Montessori de Terra Linda - 2010
CA, USA - Mary Yahnke

Montessori Hale O Keiki - 2009
HI, USA - Elaine Blasi

Montessori School Vitoria-Gasteiz - 2017
Pais Vasco, Spain - Carme Parra

Mounds Park Academy - 2008
MN, USA - Mike Downs

Mount de Sales Academy - 2012
GA, USA - David Held

Mount Tamalpais School - 2008
CA, USA - Dr. Kate Mecca

Museum School, The - 2013
NY, USA - Marie Anise Angenor

National Child Research Center Preschool - 2009
DC, USA - Liz Barclay

New Canaan Country School - 2010
CT, USA - Timothy Bazemore

New Hampton School - 2009
NH, USA - Andrew Menke

New Roads School - 2011
CA, USA - Dr. David Bryan

New York City Department of Education - 2009 (1889 schools)
NY, USA - Joel Klein

Nicholas Copernicus Primary School No.1 - 2013
Voivodeship, Poland - Magorzata Pawelczyk

Nichols School - 2010
NY, USA - Bill Clough

North Country School - 2008
NY, USA - David Hochschartner

North Shore Country Day School - 2008
IL, USA - Thomas W. Doar III

North Star Academy Laval - 2012
Quebec, Canada - Jose Pepin

Northeast High School - 2014
PA, USA - Sharon McCloskey

Northern Lights Community School - 2014
MN, USA - Nick Pretasky

Northfield Mount Hermon School - 2008
MA, USA - Thomas K. Sturtevant

Northfield School - 2014
Buenos Aires, Argentina - Gabriela Pandiello

Oakdale Elementary - 2015
UT, USA - Kierstin Draper

Oakland Unified School District - 2015 (103 schools)
CA, USA - Roland Broach

Oak Meadow Montessori School - 2012
GA, USA - Lynn Nehez
 
Okehampton College - 2013
England, United Kingdom - Daryll Chapman

Oldfields School - 2010
MD, USA - Taylor Smith

Omaha Public Schools - 2014 (86 schools)
NE, USA - Dr. Antoinette Turnquist

Orange County Public Schools - 2014 (199 schools)
FL, USA - Dr. Barbara Jenkins

Orchard House - 2014
Quebec, Canada - Christine Mayers

Orme School, The - 2016
AZ, USA - Bruce Sanborn

Osnovna Skola Pantovcak - 2016
Croatia - Vesna Rak

P.S. 38 Roberto Clemente - 2016
New York, NY - Karen Urruttia-Orme

P.S. 69 Vincent D. Grippo School - 2013
NY, USA - Jaynemarie Capetanakis

P.S./M.S 114 The Belle Harbor School - 2015
NY, USA - Regina Restivo

Pace Academy - 2009
GA, USA - Frederick Assaf

Pacific Northern Academy - 2014
AK, USA - Arnold S Cohen

Packer Collegiate Institute - 2009
NY, USA - Bruce Dennis

Paideia School, The - 2016
GA, USA - Korri Ellis

Park School - 2008
MD, USA - Daniel J. Paradis

Pegasus School, The - 2009
CA, USA - John Zurn

Pennington School, The - 2014
NJ, USA - Andrew Lloyd

Phillips Academy - 2008
MA, USA - Barbara Landis Chase

Phillips Exeter Academy - 2008
NH, USA - Tyler C. Tingley

Phoenix Country Day School - 2008
AZ, USA - Geoff Campbell

Pine Crest Preparatory School, Boca Raton - 2008
FL, USA - Dale Smith

Pine Crest Preparatory School, Ft. Lauderdale - 2008
FL, USA - Dale Smith

Pine Jog Elementary School - 2012
FL, USA - Fred Barch

Pioneer Springs Community School - 2016
NC, USA - Christopher Simeral

Poly Prep Country Day School - 2010
NY, USA - Davis B. Hariman

Potomac School - 2008
VA, USA - Geoff Jones

Poughkeepsie Day School - 2014
NY, USA - Josie Holford

Prairie Crossing Charter School - 2008
IL, USA - Nigel Whittington

Prairie Ridge Elementary - 2014
CO, USA - Cynthia Gockley

Presidio Hill School - 2017
CA, USA - Kevin Jacobson

Princeton Day School - 2008
NJ, USA - Paul Stellato

Princeton Junior School - 2008
NJ, USA - Peter Y. Rapelye

Principia School - 2018
MO, USA - Travis Brantingham

Prospect Sierra School - 2013
CA, USA - Katherine Dinh

Providence Day School – 2017
NC, USA - Glyn Cowlishaw

PSBB - 2014
Karnataka, India - Rajesh Shethia

Pullman High School - 2011
WA, USA - Joe Thornton

Punahou School - 2011
HI, USA - James K. Scott

Putney School, The - 2008
VT, USA - Emily Jones

Queen Elizabeth II High School - 2014
Isle of Man - Sue Moore

Ranney School - 2015
NJ, USA - Michael Russell

Ravenscroft School - 2008
NC, USA - Doreen Kelly

Red Hawk Elementary School - 2014
CO, USA - Daniel Currie

Regis High School - 2012
NY, USA - Brian Peterson

Rishi Valley Education Center - 2015 (12 schools)
Andhra Pradesh, India - Kavita Krishna

Rippowam Cisqua School - 2010
NY, USA - Matthew Nespole

Riverdale Nursery School and Family Center - 2011
NY, USA - Susan Smelin

Rockland Country Day School - 2009
NY, USA - Brian Mahoney

Rodeph Sholom School - 2008
NY, USA - Paul Druzinsky

Roland Park Country School - 2008
MD, USA - Jean Waller Brune

Ross School - 2008
NY, USA - Michele Claeys

Rowland Hall - 2008
UT, USA - Alan Sparrow

Royal College - 2015
Western Province, Sri Lanka - Aruna De Silva

Sabot at Stony Point - 2014
VA, USA - Christine Krawczel

Sacramento City Unified School District - 2017 (77 schools)
CA, USA - Jose L. Banda

Sacred Heart Schools - 2013
CA, USA - Sandy Dubinsky

Sagebrush Montessori Academy - 2009
TX, USA - Eliza Garcia

Saint Andrew's School - 2008
FL, USA - Dr. Ann Marie Krejcarek

Saint Catherine of Alexandria Catholic School - 2015
CA, USA - Jeff Layne

Saint George´s School - 2015
Montevideo, Uruguay - Patricia Carabelli

Saint Gertrude High School - 2012
VA, USA - Dr. Judi Lynch

Salisbury School - 2009
CT, USA - Chisholm S. Chandler

Samuel Gompers Career & Tech. Education High School - 2011
NY, USA - Joyce Millls Kittrell

San Diego Unified School District - 2015 (231 schools)
CA, USA - Janet Whited

San Francisco Friends School - 2008
CA, USA - Catherine Hunter

San Francisco Unified School District - 2015 (129 schools)
CA, USA - Richard Carranza

San Pedro High School - 2014
CA, USA - Jennifer Cheng

Sandbox International School - 2015
Ceará, Brazil - Adriana Rodrigues

Sandia Preparatory School - 2011
NM, USA - Steven Albert

Sanskriti the Gurukul - 2020
Guwahati, Assam, India - Ajanita Hazarika

Santa Catalina School - 2012
CA, USA - Sister Claire Barone

Santa Cruz Cooperative School - 2014
Santa Cruz, Bolivia - Getulio Amaral Rosa Brasil

Santa Fe Preparatory School - 2008
NM, USA - James Leonard

Santa Monica Malibu Unified School District - 2019
CA, USA - Dr. Ben Drati

Santa Teresa High School - 2012
CA, USA - Carolina Vergara

School District of Palm Beach County, The - 2015 (185 schools)
FL, USA - Paul Strauss

School District of Philadelphia, The - 2015 (218 schools)
PA, USA - Francine Locke

School in the Woods - 2017
CT, USA - Elaine Blanck

School of Environment - 2012
Maharashtra, India - Rajendra Nannaware

School of the Holy Child - 2015
NY, USA - William Hambleton

School of the Nations / Escola das Nacoes - 2014
Federal District, Brazil - Lisa Perskie

Seacrest Country Day School - 2009
FL, USA - Dr. John Watson

Seattle Academy of Arts and Sciences - 2008
WA, USA - Kolia O'Conner

Secundaria Tecnica No 43 - 2014
Federal District, Mexico - Manuel Salgado Cuevas

Seven Hills School, The - 2014
CA, USA - William H. Miller

Sewickely Academy - 2008
PA, USA - Kolia O'Conner

Shady Side Academy - 2010
PA, USA - Tom Cangiano

Sharjah American International School - 2016
Dubai, United Arab Emirates - Tamar Saber

Shorecrest Preparatory School - 2014
FL, USA - Sue Stevens

Siam International School - 2012
Thailand - Teepat Sutabutra

Silverado High School - 2014
CA, USA - Barbara Marrs

Sleepy Hollow High School - 2015
NY, USA - Carol Conklin-Spillane

Sonoma Academy - 2008
CA, USA - Janet Durgin

Sonoma Country Day School - 2008
CA, USA - Philip Nix

Spartanburg Day School - 2008
SC, USA - Chris Dorrance

Springside Chestnut Hill Academy - 2011
PA, USA - Dr. Pricilla Sands

Springside School - 2009
PA, USA - Dr Priscilla Sands

St. Alcuin Montessori School - 2008
TX, USA - Shaun Underhill

St. Andrews Episcopal School - 2015
TX, USA - Dina Tucker

St. Catherine's School - 2010
VA, USA - Laura J. Fuller

St. Christopher's School - 2008
VA, USA - Charles M. Stillwell

St. Francis School - 2008
KY, USA - John Delautre

St. George's Independent School - 2010
TN, USA - Bill Taylor

St. George's School - 2008
RI, USA - Eric F. Peterson

St. Luke's School - 2008
CT, USA - Mark Davis

St. Mark's School - 2008
MA, USA - John C. Warren

St. Paul's School - 2008
NH, USA - William Matthews

St. Paul's Independent Day School - 2009
MD, USA - John Reid

St. Paul's School for Girls - 2012
MD, USA - Dr. Monica Gillespie

St. Stephen's & St. Agnes School - 2008
VA, USA - Joan G. Holden

St. Timothy's School - 2008
NC, USA - Michael S. Bailey

StarShine Academy Creative Community School - 2016
AZ, USA - Trish McCarty

Stoneleigh-Burnham School - 2008
MA, USA - Sally L. Mixsell

Storm King School, The - 2014
NY, USA - Jonathan Lamb

Suffield Academy - 2013
CT, USA - Charlie Cahn

Tabor Academy - 2008
MA, USA - John Quirk

Taft School, The - 2010
CT, USA - William McMullen

Taipei American School - 2010
Taiwan - Dr. Sharon Hennessey

Tatnall School, The - 2015
DE, USA - Dr. Peter Bookman

Tenacre Country Day School - 2009
MA, USA - Chris Elliot

Tesseract School - 2013
AZ, USA - Nigel Taplin

Thacher School, The - 2014
CA, USA - Juan Sanchez

Thomas Edison EnergySmart Charter School - 2013
NJ, USA - Oguz Yildiz

Tilton School - 2008
NH, USA - Peter Saliba

Trevor Day School - 2008
NY, USA - Pamela J. Clarke

Trinity Environmental Academy - 2015
TX, USA - Jennifer Hoag

Trinity Preparatory School - 2009
FL, USA - Craig S. Maughan

Trinity School - 2008
CA, USA - Mary Menacho

Trinity School - 2008
NY, USA - Suellyn Scull

Tukata Vientiane - 2016
Laos - Kelly Bornt

Tullahoma High School - 2015
TN, USA - Laura McCall

Turning Point School - 2008
CA, USA - Deborah Kichman

Unidad Educativa Liceo Internacional - 2017
Quito, Ecuador - Martha Miranda

United Friends School - 2008
PA, USA - Nancy Donnelly

University Liggett School - 2009
MI, USA - Dr. Joseph Healey

University of Chicago Laboratory Schools - 2008
IL, USA - David W. Magill

Urban School of San Francisco, The - 2011
CA, USA - Kari Kiernan

Urrbrae Agricultural High School - 2014
South Australia, Australia - Peter Smith

UUM International School - 2016
Kedah, Malaysia - Noman Mohammad

Valkstone Primary School - 2009
Victoria, Australia - Marilyn Koolstra

Vermont Academy - 2012
VT, USA - Sean P. Brennan

Viewpoint School - 2015
CA, USA - Robert Bryan

Village Community School - 2008
NY, USA - Eve K. Kleger

Virginia Beach City Public Schools - 2015 (86 schools)
VA, USA - J. Tim Cole

Waldorf Arbol de Vida - 2012
Guanajuato, Mexico - Herman Castaneda

Wantagh Senior High School - 2013
NY, USA - Carolyn Breivogel

Washington International School - 2008
DC, USA - Clayton Lewis

Waterford Kamhlaba UWCSA - 2013
Hhohho, Swaziland - Lucinda Bride

Watkinson School - 2009
CT, USA - John Bracker

Waynflete School - 2008
ME, USA - Mark W. Sagar

Wesley School, The - 2008
CA, USA - Ruth Glass

Western Reserve Academy - 2011
OH, USA - Midge Karam

Westminster Schools, The - 2008
GA, USA - Dr. William Clarkson

Westover School - 2009
CT, USA - Ann Pollina

Westtown School - 2009
PA, USA - John Baird

Wheeling Country Day School - 2015
WV, USA - Liz Hofreuter-Landini

White Mountain School, The - 2008
NH, USA - Tim Breen

Wildwood - 2016
GA, USA - Jenn Fletcher

William Penn Charter School - 2013
PA, USA - Darryl Ford

Willow School, The - 2011
FL, USA - Govinda Reinhelter

Wilmington Friends School - 2012
DE, USA - Bryan Garman

Winchester Thurston School - 2008
PA, USA - Gary Niels

Windward School - 2008
CA, USA - Tom Gilder

Winsor School - 2012
MA, USA - Aneiage Van Bean

Winston Preparatory School - 2009
NY, USA - Bill DeHaven

Woodhall School, The - 2013
CT, USA - Bryan J. Dunn

Woodland Charter School - 2016
OR, USA - Christopher

Woodstock Day School - 2014
NY, USA - Jim Handlin