Here is a sample of Littleford & Associates’ extensive list of satisfied clients. Click here to see our Testimonials Page.
Our For-Profit Companies and Non-Profit Organization clients are listed near the bottom. Please scroll down to see them.
Independent and International Schools
- ABA Oman
- Abington Friends School (PA)
- Academia Cotopaxi (Ecuador)
- Academy of Notre Dame (PA)
- Academy of the Pacific (HI)
- ACCEL (AZ)
- Agnes Irwin School (PA)
- Aiglon College (Switzerland)
- Al-Abatinah International School (Oman)
- Albany Academy (NY)
- Albert College (Canada)
- Alexander Dawson School (CO and NV)
- Alexandria Country Day School (LA)
- Alexandria Country Day School (VA)
- All Saints Episcopal (AZ)
- All Saints Episcopal Church (Fort Worth, TX)
- All Saints Episcopal Day School (CA)
- All Saints Episcopal School of Fort Worth (TX)
- All Saints’Academy (FL)
- Altamonte School (AL)
- American Collegiate Institute (Turkey)
- American Community School- Amman (Jordan)
- American Embassy School New Delhi
- American Institute of Monterrey (MX)
- American International School Barcelona
- American International School in Mexico
- American International School Madrid
- American International School Milan
- American International School of Bucharest (Romania)
- American International School of Guangzhou (China)
- American International School of Lisbon (Portugal)
- American International School of Riyadh (Saudi Arabia)
- American International School of Rotterdam (The Netherlands)
- American Military Academy (PR)
- American Overseas School of Rome (Italy)
- American School Foundation of Monterrey (MX)
- American School in Japan (Japan)
- American School of Asuncion (Asuncion, Paraguay)
- American School of Campinas (Brazil)
- American School of Marrakesh
- American School of Paris (France)
- American School of Rio de Janiero (Brazil)
- American School of Tampico (Mexico)
- American School of The Hague (Netherlands)
- Annunciation Orthodox School (TX)
- Annunication Orthodox School (TX)
- Antilles School (Virgin Islands)
- Antwerp International School
- Appleby College (Ontario, Canada)
- Apporto British Schools (Portugal)
- Archer School for Girls (CA)
- Archmere Academy (PA)
- Aristoi Classical School (TX)
- Army and Navy Academy (CA)
- Ascension School (LA)
- Ashbury College (Canada)
- Aspen Country Day School (CO)
- Athenian School (CA)
- Atlanta International School (GA)
- Atlanta Youth Academy (GA)
- Austin Preparatory School (MA)
- Austrailan International School of Hong Kong
- Awty International School (TX)
- Baldwin School (PA)
- Ballarat Grammar School (Melbourne, Australia)
- Bancroft School (MA)
- Barrie School (MD)
- Barstow School (MO)
- Bartlett School (MA)
- Battle Ground Academy (TN)
- Battleground Academy (TN)
- Bavarian International School
- Baylor (TN)
- Bayview Glen School (Toronto)
- Bear Creek School (WA)
- Beauvoir School (DC)
- Beijing City International School (China)
- Belmont Day School (MA)
- Benedictine School for Exceptional Children (MD)
- Bentley School (CA)
- Berkeley Carroll School (NY)
- Berkeley Preparatory (FL)
- Berkshire Country Day School (MA)
- Berkshire School (MA)
- Bernard Zell Anshe Emet Day School(IL)
- Berwick Academy (ME)
- Bialik College (Victoria, Australia)
- Birches School (MA)
- Bishop Lynch High School (TX)
- Bishop Strachan School (Ontario)
- Bishop’s College School (Quebec)
- Bishop’s School (CA)
- Bishops College School
- Blake Schools (MN)
- Bonn International School (Germany)
- Brandon Hall (GA)
- Branksome Hall (Ontario)
- Branson School (CA)
- Brearley School (NY)
- Brentwood College School (Victoria, BC)
- Brewster Academy (NH)
- Briarcrest School (TN)
- Brimmer & May (MA)
- British International School (Jakarta)
- Brooklyn Friends School (NY)
- Brooks School (MA)
- Brookstone School (GA)
- Brookwood School (MA)
- Browning School (NY)
- Brunswick School (CT)
- Bryn Mawr School (MD)
- Buckingham Browne & Nichols School (MA)
- Buckingham Friends School (PA)
- Buckley School (CA)
- Buckley School (NY)
- Bullis School (MD)
- Burr and Burton Academy (VT)
- Busan International Foreign School (Korea)
- Bush School (WA)
- Cairo American College
- Calvert School (MD)
- Cambridge Classical School (CA)
- Campbell Hall (CA)
- Canadian International School of Hong Kong (Hong Kong)
- Cape Henry Collegiate (VA)
- Cardigan Mountain School (NH)
- Caribbean Preparatory School (PR)
- Carlthorp School (CA)
- Carolina Friends School (NC)
- Carroll School (MA)
- Carrollwood Day School (FL)
- Cary Academy (NC)
- Castijella School (CA)
- Cathedral Grammar School (New Zealand)
- Cathedral High School (IN)
- Catholic Memorial High School
- Catholic Memorial High School (MA)
- Catlin Gabel (OR)
- Centennial College (Quebec)
- Center for Contemporary Education (DC)
- Center School (PA)
- Chabad Hebrew Academy San Diego (CA)
- Chadwick School (CA)
- Charles E. Smith Jewish Day School (MD)
- Charles River School (MA)
- Charlotte Christian School (NC)
- Charlotte Country Day School (NC)
- Charlotte Latin (NC)
- Charlotte Prep School
- Charminade Madonna School (FL)
- Charter School of Wilmington (DE)
- Chartwell School (CA)
- Chase Collegiate School (CT)
- Cheshire Academy (CT)
- Chesterfield Day School (MO)
- Chestnut Hill Academy (PA)
- Children’s Guild (MD)
- Chilton Saint James (New Zealand)
- Choate Rosemary Hall (CT)
- Christ Church Episcopal School (SC)
- Christ College (New Zealand)
- Christian Alliance P.C. Lau Memorial International School (Hong Kong)
- Church Farm School (PA)
- Churchill School (MO)
- Churchill School & Center (NY)
- Colegio Americano de Torreon (Mexico)
- Colegio Franklin Delano Roosevelt (Peru)
- Collegiate School (VA)
- Collingwood School (Vancouver)
- Columbus School for Girls (OH)
- Community School (ID)
- Community School (MO)
- Community School of Naples (FL)
- Concord Academy (MA)
- Concordia International School Shanghai (China)
- Connelly School of the Holy Child (MD)
- Convent of the Sacred Heart (CT)
- Copenhagen International School (Denmark)
- Cottage School (GA)
- Cotting School (MA)
- Country Day School
- Covenant Classical School (TX)
- Crane School (CA)
- Crescent School (Ontario)
- Crestview School (CA)
- Crofton House School (Vancouver)
- Crossroads College Preparatory School (MO)
- Crossroads School (CA)
- Currey Ingram Academy (TN)
- Curtis School (CA)
- Cushing Academy (MA)
- Dalton School (NY)
- Dedham Country Day School (MA)
- Delaware Valley Christian School (PA)
- Delaware Valley Friends School (PA)
- Delbarton School (NJ)
- Denver Academy (CO)
- Developmental School Foundation (MD)
- Dexter-Southfield Schools (MA)
- Dilworth School (New Zealand)
- Doane Stuart School (NY)
- Doctor Franklin Perkins School (MA)
- Dresden International School (Germany)
- Duchesne Academy of the Sacred Heart (TX)
- Dunn School(CA)
- Eaglebrook (MA)
- Ecole Bilingue de Berkeley (CA)
- Eliot Montessori School, Inc. (MA)
- Elisabeth Morrow School (NJ)
- Ellis School (PA)
- Elmwood School (Ontario)
- Emma Willard (NY)
- Ensworth School (TN)
- Episcopal Academy (PA)
- Episcopal Day School (Augusta, GA)
- Episcopal High School (LA)
- Episcopal High School (VA)
- Episcopal High School Baton Rouge
- Episcopal High School of Jacksonville (FL)
- Episcopal School of Acadiana (LA)
- Episcopal School of Baton Rouge (LA)
- Episcopal School of Dallas (TX)
- Escuela Campo Alegre (Venezuela)
- Ethical Culture Fieldston School (NY)
- Evangelical Christian of Memphis (TN)
- Evergreen Center (MA)
- Evergreen School (WA)
- Exploration Summer Programs (MA)
- Fairfield Country Day (CT)
- Far Brook (NJ)
- Far Hills Country Day School (NJ)
- Farleigh Dickinson University
- Farr Academy (MA)
- Fay School (MA)
- Fay School (TX)
- Fayetteville Academy (NC)
- Fenn School (MA)
- Fessenden School (MA)
- Flint Hill School (VA)
- Flintridge Preparatory School (CA)
- Foote School (CT)
- Fordham Prep
- Forsyth Country Day School (NC)
- Forsyth School (MO)
- Fort Worth Country Day School (TX)
- Fox Chapel Country Day School (PA)
- Foxcroft School (VA)
- Frances Xavier Warde (IL)
- Franklin Road Academy (TN)
- French American International School (CA)
- French American School of Puget Sound (WA)
- French American School of Rhode Island
- French International School (Hong Kong)
- French International School Hong Kong
- Friends Academy (MA)
- Friends School (CO)
- Friends Select School (PA)
- Friends Seminary (NY)
- Friends’ Central School (PA)
- Ft. Ticonderoga (New York)
- Garrison Forrest (MD)
- Gaston Day School (NC)
- Georgetown Day School (DC)
- German-Swiss International School (Hong Kong)
- Germantown Academy (PA)
- Germantown Friends School (PA)
- Gilman School (VA)
- Girard College (PA)
- Gladwyne Montessori School (PA)
- Glenlyon-Norfolk School (Victoria, B.C.)
- Good Shepherd Episcopal School (TX)
- Gordon School (RI)
- GRADED (Sao Paulo, Brazil)
- Grafton School (VA)
- Grauer School (CA)
- Green Vale School (NY)
- Greenfield School (NC)
- Greenhill School (TX)
- Greenhills School (MI)
- Greensboro Day School (NC)
- Greenwich Academy (CT)
- Greenwich Country Day School (CT)
- Grosse Pointe Academy (MI)
- Groton School (MA)
- Gulliver Prep (FL)
- Hamden Hall School (CT)
- Hamlin School (CA)
- Hammond School (SC)
- Hampton Roads Academy (VA)
- Harbor Day School (CA)
- Harbor School (Hong Kong)
- Harker School (CA)
- Harpeth Hall (TN)
- Harrells Christian Academy (NC)
- Haverford School (PA)
- Hawken School (OH)
- Head-Royce School (CA)
- Hebrew Academy (NV)
- Heritage Hall School (OK)
- Heritage School (GA)
- Hewitt School (NY)
- Highlands School (AL)
- Hill School (PA)
- Hill School (VA)
- Hillbrook School (CA)
- Hillcrest Academy (CA)
- Hillcrest Education Center (MA)
- Hillfield-Strathallan School (ONT)
- Hillside School (MA)
- Hilltop School (Auckland, NZ)
- Hilton Head Academy (SC)
- Hockaday (TX)
- Holderness School (NH)
- Holland Hall School (OK)
- Holy Innocents School (GA)
- Holy Spirit Episcopal School (TX)
- Hong Kong Academy
- Hong Kong International School (Tai Tam, Hong Kong)
- Hopkins School (CT)
- Hotchkiss School (CT)
- Houston Christian
- Hun School (NJ)
- Hutchison School (TN)
- Hyde Leadership Public Charter School (Washington,DC)
- Hyde School (ME)
- Idylwild Arts Academy (CA)
- Independence School (DE)
- Indian Springs School (AL)
- Inly School (MA)
- Institut Auf Dem Rosenberg (Switzerland)
- Inter-Community School-Zurich (Switzerland)
- International Academy-Amman (Jordan)
- International College Spain (Madrid)
- International School Bangkok (Thailand)
- International School Group Saudi Arabia
- International School Hyderabad (India)
- International School Latvia
- International School Nido de Aguilas (Santiago, Chile)
- International School of Aberdeen (Scotland)
- International School of Amsterdam (Netherlands)
- International School of Azerbaijan (Azerbaijan)
- International School of Beijing (China)
- International School of Berne (Switzerland)
- International School of Boston (MA)
- International School of Brussels (Belgium)
- International School of Dusseldorf (Germany)
- International School of Geneva (Switzerland)
- International School of Lausanne (Switzerland)
- International School of Luxembourg
- International School of Manila
- International School of Panama (FL)
- International School of Paris (France)
- International School of Phnom Penh (Cambodia)
- International School of Prague
- International School of Stavenger(Norway)
- International School of Stuttgart(Germany)
- International School of the Penninsula (CA)
- International School of Yangon (Myanmar)
- International School of Zug and Lucerne (Switzerland)
- International School Orange County (CA)
- Isidore Newmann School (LA)
- Jacksonville Country Day School (FL)
- Jakarta International School (Indonesia)
- Jewish Metro Academy of Detroit (MI)
- John Thomas Dye (CA)
- Junior College (New Zealand)
- Kamehameha Schools, Hawaii Campus (HI)
- Kellett School- The British International School in Hong Kong
- Kent Place School (NJ)
- Kent School (CT)
- Kent’s Hill School (ME)
- Kew Forest School (NY)
- King’s Academy (Jordan)
- King’s College (Auckland, NZ)
- King’s Daughters’ School
- King’s School (New Zealand)
- Kingsley Montessori School (MA)
- Kristin School (New Zealand)
- Kyoto International School (Japan)
- Laguna Blanca School (CA)
- Lake Forest Country Day School (IL)
- Lake Grove Schools (NY)
- Lake Highland Preparatory School (FL)
- Lakefield College School (Ontario)
- Lakeside School (WA)
- Lambeth House (New Orleans, LA)
- Lamplighter School (TX)
- Landon School (MD)
- Langley School (VA)
- LaSalle High School (PA)
- Latin School of Chicago (IL)
- Lawrence Academy (MA)
- Lawrenceville School (NJ)
- Le Jardin Academy (HI)
- Learning Center for the Deaf (MA)
- Legacy Christian School (TX)
- Leo Baeck Day School
- Lesley Ellis School (MA)
- Lexington School (KY)
- Lighthouse School (MA)
- Lincoln Academy (ME)
- Lincoln School (RI)
- Lincoln, The American International School of Buenos Aires (Argentina)
- Lindisfarne Anglican School (NSW, Australia)
- Linsly School (VA)
- Long Trail School (VT)
- Loomis-Chaffee (CT)
- Louise S. McGehee School (LA)
- Lovett School (GA)
- Lowell School (DC)
- Lower Canada College (Quebec)
- Loyola Academy (IL)
- Loyola Blakefield (MD)
- Loyola School (NY)
- Lycee de Calgary (AB)
- Lycee Francais de New York
- Lycee International School of Los Angeles (LILA) (CA)
- Lycee International, American Section (France)
- Lyndon Institute (VT)
- Mabin School (Ontario, Canada)
- MacDuffie School (MA)
- Madeira School (VA)
- Maine Central Institute (ME)
- Malvern Preparatory School (PA)
- Manhattanville College (NY)
- Marburn Academy (OH)
- Marin Academy (CA)
- Marin Horizon School (CA)
- Marin Primary School (CA)
- Marlborough School (CA)
- Mary McDowell Friends School (NY)
- Marymount High School (CA)
- Marymount School (CA)
- Marymount School (Paris, France)
- Marywood Country Day School (CA)
- Mashrek International School (Jordan)
- Matthews Hall (Ontario)
- Maumee Valley Country Day School (OH)
- Mayfield Junior School (CA)
- McCallie School (TN)
- McDonogh School (MD)
- Meadowridge School (BC)
- Medbury School Christchurch (NZ)
- Melbourne Girls Grammar School (Australia)
- Memphis University School (TN)
- Mercersburg Academy (PA)
- Metairie Park Country Day (LA)
- Methodist Ladies’ College (Australia)
- Miami Country Day School (FL)
- Mid-Pacific Institute (HI)
- Middlesex School (MA)
- Midland Corporation/Midland School (NJ)
- Milken Community High School (CA)
- Miller School of Albemarle (VA)
- Millsprings Academy (GA)
- Milton Academy (MA)
- Milton Hershey School (PA)
- Milton I. Schwartz Hebrew Academy (NV)
- Mirman School (CA)
- Montgomery Academy (AL)
- Montgomery Bell Academy (TN)
- Montgomery School (PA)
- Moorestown Friends (NJ)
- Moreton Bay College (Brisbane, Australia)
- Morgan Park Academy (IL)
- Moses Brown School (RI)
- Mother Caroline Academy (MA)
- Mount Tamalpais School (CA)
- Mulgrave School (Vancouver, BC)
- Munich International School (Germany)
- Nagoya International School (Japan)
- Nanjing International School (China)
- Nashoba Brooks School (MA)
- National Cathedral School (DC)
- Neuchatel College (Switzerland)
- New Hampton School (NH)
- New International School of Thailand
- Newman Preparatory School (MA)
- Newton School of the Sacred Heart (MA)
- Newtown Friends School (PA)
- Nightingale-Bamford School (NY)
- Noble Academy (NC)
- Norfolk Collegiate School (VA)
- North Cobb Christian School (GA)
- North Cross School (VA)
- North Shore Country Day School (IL)
- North Yarmouth Academy (ME)
- Northfield Mount Hermon School (MA)
- Norwood School (MD)
- Nueva School (CA)
- Oak Hill School (TN)
- Oak Knoll School of the Holy Child (NJ)
- Oakcrest School (VA)
- Oakridge School (TX)
- Oberoi International School (Mumbai, India)
- Ojai Valley School (CA)
- Oldfields School (MD)
- Open Window School (WA)
- Opporto British School (Portugal)
- Out-of-Door Academy (FL)
- Overlake School (WA)
- P.S. #1 (CA)
- Paideia (GA)
- Palm Valley School (CA)
- Palmer Trinity School (FL)
- Pan-American School (Costa Rica)
- Parish School (TX)
- Park School (MD)
- Park Street School (MA)
- Park Tudor School (IN)
- Pathway School (PA)
- Peck School (NJ)
- Pegasus School (CA)
- Pennington School (NJ)
- Peoria Academy (IL)
- Perelman Jewish day School (PA)
- Perkins School for the Blind (MA)
- Perkiomen School (PA)
- Phillips Brooks School (CA)
- Phillips Programs (VA)
- Phoenix Country Day School (AZ)
- Pickering College (Ontario)
- Pike School (MA)
- Pine School (FL)
- Pingree School (MA)
- Pittsburgh Council of Independent Schools (PA)
- Play & Learn Centers (PA)
- Poly Prep (NY)
- Polytechnic School (CA)
- Porter-Gaud School (SC)
- Portsmouth Abbey (RI)
- Potomac School (VA)
- Presbyterian Day School (TN)
- Presbyterian Ladies College (Melbourne, Australia)
- Prince of Peace Christian School (TX)
- Princeton Academy of the Sacred Heart (NJ)
- Prospect Sierra School (CA)
- Protestant Guild for Human Services (MA)
- Providence Country Day School (RI)
- Providence Day School (NC)
- Pulaski Academy (AK)
- Punahou School (HI)
- Purpose Preparatory Academy (TN)
- Pusch Ridge Christian Academy (AZ)
- Qatar Foundation (Qatar)
- Queen Anne School (MD)
- Queen Margaret School (Vancouver, BC)
- Quest Academy (IL)
- Raleigh School (NC)
- Randolph School (AL)
- Ranji Ruru Girls School (New Zealand)
- Rawson Saunders (TX)
- RCS Netherwood (New Brunswick)
- Red Oaks School (NJ)
- Regis Jesuit High School (CO)
- Regis School of the Sacred Heart (TX)
- Renbrook School (CT)
- Ridley College (Ontario)
- Rio Grande School (NM)
- River Valley School
- River Valley School (AB)
- Rivers School (MA)
- Riverside School (Zug, Switzerland)
- Robert College of Istanbul (Turkey)
- Rochester Arts and Sciences Academy (NY)
- Rocky Hill School (RI)
- Rodeph Shalom (NY)
- Rosemont School of the Holy Child (PA)
- Rossman School (MO)
- Rowland Hall-St. Mark’s School (UT)
- Royal Palm Academy (FL)
- Rumson Country Day School (NJ)
- Rundle College
- Rutgers Preparatory School (NJ)
- Sacramento Country Day School (CA)
- Sacred Heart School of Montreal (Canada)
- Sacred Heart Schools of San Francisco (CA)
- Sacred Hearts School (HI)
- Sage Ridge School (NV)
- Sage School (MA)
- Saint Andrew’s School (FL)
- Saint Andrew’s School (FL)
- Saint David’s School (NYC)
- Saint Edward’s School (FL)
- Saint George’s (WA)
- Saint John’s School (PR)
- Saint Margaret’s Episcopal School (CA)
- Saint Mark’s School (Altadena, CA)
- Saint Mark’s School (San Rafael,CA)
- Saint Mark’s School of Texas(TX)
- Salesianum School (DE)
- Salisbury Academy (NC)
- Salisbury School
- Salisbury School (CT)
- Saltus Grammar School (Bermuda)
- San Domenico School (CA)
- San Francisco Day School (CA)
- San Francisco University High School
- San Fransisco University School (CA)
- Santa Cruz Cooperative School
- Santiago College (Chile)
- Saudi Arabian International Schools
- Savannah Country Day School (GA)
- Sayre School (KY)
- School for Contemporary Education (VA)
- Schools for Children, Inc.
- Scots College (Sydney, Australia)
- Seabury Hall (HI)
- Seattle Country Day School (WA)
- Secondary Schools Admissions Testing Board (SSATB)
- Selwyn House (Quebec)
- Selwyn House School (Christchurch, NZ)
- Selwyn House School (Quebec)
- Senior College (Auckland, NZ)
- Seoul Foreign School (Korea)
- Seven Hills School (OH)
- Severn School (MD)
- Sewickley Academy (PA)
- Shady Hill School (MA)
- Shady Side Academy (PA)
- Shadyside Academy (PA)
- Shanghai American School (China)
- Shattuck-St.Mary’s School (MN)
- Shawnigan Lake School (BC)
- Shawnigan Lake School (Vancouver, BC)
- Shipley School (PA)
- Shlenker School (TX)
- Sidwell Friends (Washington, DC)
- Sidwell Friends School (DC)
- Sierra Canyon High School (CA)
- Singapore American School (Singapore)
- Solomon Schechter Day School (NJ)
- Solomon Schecter School (NJ)
- Somerset Hills Learning Institute (NJ)
- Somersfield Academy (Bermuda)
- Sonoma Country Day School (CA)
- Sotogrande International School (Spain)
- Southbank International School (London)
- Southfield School (LA)
- Southpointe Academy (British Columbia, CA)
- Southwell School (New Zealnd)
- Springside School (PA)
- St. Alcuin School (TX)
- St. Andrew’s College (Christchurch, NZ)
- St. Andrew’s College (Ontario)
- St. Andrew’s Episcopal School (MS)
- St. Andrew’s Episcopal School (TX)
- St. Andrew’s School (FL)
- St. Anne’s-Belfield School (VA)
- St. Augustine Preparatory School (Nicaragua)
- St. Clement’s School(TX)
- St. Croix Country Day School (Virgin Islands)
- St. David’s School (NC)
- St. Francis Episcopal Day School (TX)
- St. George’s Episcopal School (LA)
- St. George’s Independent School (TN)
- St. George’s Preparatory (New Zealand)
- St. George’s School (Vancouver)
- St. Gregory College Preparatory School (AZ)
- St. Hilda’s & St. Hugh’s School (NY)
- St. Ignatius Preparatory School (IL)
- St. John’s Episcopal Parish Day School (FL)
- St. John’s Episcopal School (CA)
- St. John’s Kilmarnock School (Ontario, Canada)
- St. John’s School (TX)
- St. John’s School (Vancouver, BC)
- St. John’s-Ravenscourt School (Manitoba, Canada)
- St. Johnsbury Academy (VT)
- St. Kentigern’s School (New Zealand)
- St. Luke’s Episcopal (AL)
- St. Luke’s Episcopal Day School (LA)
- St. Margaret’s (New Zealand)
- St. Margaret’s School (Victoria, BC)
- St. Margaret’s School Bushey (UK)
- St. Mark’s Episcopal School (FL)
- St. Mark’s Episcopal School (LA)
- St. Mark’s School (MA)
- St. Mark’s School (Wellington, NZ)
- St. Martin’s Episcopal School (FL)
- St. Martin’s Episcopal School (LA)
- St. Mary’s Academy (MB)
- St. Mary’s Episcopal Day School (FL)
- St. Mary’s School
- St. Mary’s School (OR)
- St. Matthew’s Episcopal Day School (San Mateo,CA)
- St. Matthew’s Parish Day School (CA)
- St. Michael’s University School (Victoria, B.C.)
- St. Mildred’s-Lightbourn School (Ontario)
- St. Paul’s Episcopal Day School (MO)
- St. Paul’s Episcopal School (LA)
- St. Paul’s School (NH)
- St. Paul’s School for Boys (MD)
- St. Paul’s School for Girls (MD)
- St. Sebastian’s School (MA)
- St. Stephen’s & St. Agnes School (VA)
- St. Stephen’s Episcopal Day School (Houston, TX)
- St. Stephen’s School (Rome, Italy)
- St. Thomas Episcopal Parish School (FL)
- St. Timothy’s School (MD)
- Stanstead College (Quebec)
- Stevenson School (CA)
- Stockholm International School
- Stoneleigh-Burhman School (MA)
- Stratford Hall School (Vancouver, BC)
- Strathcona Tweedsmuir (Alberta,Canada)
- Stuart Hall School (LA)
- Suffield Academy (CT)
- Summit Country Day School (OH)
- Swain School (PA)
- Tabor Academy (MA)
- Taipei American School (Taiwan)
- Tampa Preparatory School (FL)
- Tarsus American School (Turkey)
- Tasis The American in England
- Telluride Mountain School (CO)
- Teton Science School (WY)
- Thayer Academy (MA)
- The American Embassy School of New Delhi (India)
- The American International School of Chennai (India)
- The American School of Asuncion
- The American School of Belo Horizante
- The Birches School (MA)
- The British Schools (Uruguay)
- The Cranbrook Schools (MI)
- The Hill School (PA)
- The Independent Schools Foundation Academy
- The International School of Orange County (CA)
- The New School (AR)
- The Pine School (FL)
- The Priory (Quebec)
- The Rectory (CT)
- The Regis School (TX)
- The Study
- The Village School of Naples (FL)
- The Waldorf School of Atlanta
- The Waldorf School of Atlanta (GA)
- The Webb Schools (CA)
- Thuringia International School (Germany)
- Tilton School (NH)
- Tilton School (VT)
- Timber Ridge School (VA)
- Toronto French School (Ontario)
- Town School (CA)
- Town School (NY)
- Trevor Day School (NY)
- Trinity (VA)
- Trinity Christain Academy (TX)
- Trinity College School (Ontario)
- Trinity Episcopal School (LA)
- Trinity Episcopal School (Richmond)
- Trinity Grammar School (Sydney, Australia)
- Trinity Presbyterian School (AL)
- Trinity School (Menlo Park, CA)
- Trinity School (NY)
- Trinity Valley School (TX)
- Tuscaloosa Academy (AL)
- Tuxedo Park School (NY)
- United Nations International School (NY)
- University Liggett School (MI)
- University of Toronto Schools (Ontario)
- Upland Country Day School (PA)
- Upper Canada College (Ontario)
- Uruguayan American School
- Uskudar American School (Turkey)
- Valley Forge Miltary Academy (PA)
- Valley Forge Specialized Educational Services Corporation (VFSESC) (PA)
- Valley School of Ligonier (PA)
- Victoria Shanghai Academy (Hong Kong)
- Vienna International School (Austria)
- Viewpoint School (CA)
- Village School (CA)
- Village School of Naples (FL)
- Virgin Islands Montessori School (St. Thomas,VI)
- Virginia Episcopal School (VA)
- Waldorf Garden City School (NY)
- Waldorf School of Atlanta (GA)
- Walnut Hill School (MA)
- Walsingham School (VA)
- Wanganui Collegiate (New Zealand)
- Wasatch Academy (UT)
- Washington International School
- Watkinson School (CT)
- Waynflete School (ME)
- Webb School of Knoxville (TN)
- Wellan Montessori School (MA)
- West Side Montessori School (NY)
- Westchester Country Day School (NC)
- Western Academy of Beijing (China)
- Western Country Day School (NY)
- Western Reserve Academy (OH)
- Westminster Schools (GA)
- Westridge School (CA)
- Wheeling Country Day School (WV)
- Whitby School (CT)
- Whitefield Academy (GA)
- Whitefield School (GA)
- Whitfield School (MO)
- Wildwood School (CA)
- Willows Community School (CA)
- Wilson School (MO)
- Winchester Thurston School (PA)
- Windward School (CA)
- Winsor School (MA)
- Winston Preparatory School (New York)
- Woodinville Montessori School (WA)
- Wyndcroft School (PA)
- Xavier High School (NY)
- Yayasan Bali International School
- YK Pao School (Shanghai, China)
- York House School (BC)
- York School (CA)
- Zurich International School
For-Profit Companies and Non-Profit Organizations
- Argus Research Company (NY)
- Bill Ussery Motors (FL)
- Camp Unalayee
- Carlisle Public School District (MA)
- Catalina Island Conservancy (CA)
- CHARLEE Homes for Children (FL)
- Chicago Academy of Sciences and its Peggy Notebaert Nature Museum (IL)
- Children’s Institute (PA)
- Chow Tai Fook Group (Hong Kong)
- Christ Church Episcopal Church (SC)
- Emerald Youth Foundation (TN)
- Fort Ticonderoga (New York)
- Houston Ballet (TX)
- Houston Symphony (TX)
- Houston Zoo (TX)
- James L. West Alzheimer’s Center (TX)
- Knoxville Area Rescue Ministries (KARM) (TN)
- Memorial Park Conservancy (TX)
- National Foundation for Facial Reconstruction (NY)
- Saint Michael and All Angels Episcopal Church (TX)
- Secondary Schools Admissions Testing Board (SSATB) (NJ)
- St. Thomas Episcopal Church (FL)
- Trees Of Hope (TX)
