Fundraising Fox

ClassDojo

Unicorn · $1.3BYC S12

San Francisco, US · Founded 2011 · 100 employees · Hiring · 19 known investors

classdojo.com

ClassDojo is a global community platform connecting over 50 million teachers and families to share learning moments through photos, videos, and messages. The platform serves schools and families worldwide, providing a safe online space for children to learn through play and discovery.

Also known as Class Dojo

EdTechSaaSSocialEducationConsumerEntertainmentKidsMetaverseUnited States of AmericaAmerica / CanadaFully Remote

Founders & leadership· Y Combinator alumni (S12)

ClassDojo was founded in 2011 by Sam Chaudhary and Liam Don.

SCSam Chaudhary
Sam ChaudharyinCo-founder & CEOSam Chaudhary is co-founder and CEO of ClassDojo, an education platform.30 Under 30 2014
LDLiam Don
Liam Donin𝕏Co-founder & President30 Under 30 2014

Investors · 19

Also in the syndicate · 4

GSVleadJeff ClavierPaul GrahamRon Conway

Company profile

researched Aug 2026

ClassDojo is a communication and community platform for pre-K through 8 classrooms, and increasingly for whole schools and districts. Teachers use it to message families (with automatic translation into 190+ languages), post photos, videos and updates to a private Class Story feed, add calendar events with automatic reminders, award Points tied to behaviors and skills, and give students their own Portfolios; a Teacher Toolkit adds classroom utilities such as attendance sheets and timers [0][1][2]. The company describes itself as a global community of more than 50 million teachers and families sharing children's learning moments in school and at home [3]. Public marketing states the product is loved by more than 45 million students and parents and is free for teachers forever [0][1].

The product has expanded from a single-classroom app to schoolwide and district functionality. Schoolwide features include PBIS-aligned Schoolwide Points, Signups for conferences, parties and field trips, one-way school announcements with translation and read receipts, a unified inbox across classes, combined school and class feeds, and switching between multiple schools from one account [4]. For 2026, ClassDojo added Canva-based newsletter creation inside the post composer, multi-class Story posting, a cleaner interface for older students, and teacher-to-student messaging for ages 13+ limited to eligible rostered schools in select pilot districts, where the school leader must enable it in settings [2]. Rostering connects a school's Student Information System to ClassDojo to sync students, classes, staff and families, and is offered through ClassDojo for Districts [2].

Historically the product combined classroom-to-home sharing (portfolios, photos, videos, messages) with social-emotional skill building via in-classroom feedback and activities on topics such as growth mindset, empathy and mindfulness [5]. In late 2018 the company added Beyond School, an optional family subscription for at-home learning experiences [5]. Forbes reported in 2022 that the company was building a virtual space for children [7].

Compiled by commissioned research from 8 cited public sources — announcements, filings, and press listed under research sources below.

Key figures

latest reported
App reviewsJan 20252,000,000 reviews
Community size (teachers and families)Jan 202550,000,000 users
Countries served beyond the U.S.Feb 2019180
HeadcountAug 2026507
Languages the user base has translated the product intoJan 201935 languages
Message translation languages supportedJan 2025190 languages
Net Promoter ScoreFeb 201976 NPS
Parents saying Beyond School helped them feel more connected to their childFeb 201975%
Parents saying Beyond School is enjoyed by the whole familyFeb 201980%
Share of primary school children globally using ClassDojoJan 2019roughly 1 in 20
Share of primary school students worldwide using ClassDojoFeb 20193%
Share of U.S. pre K-8 schools using ClassDojoFeb 201995%
Students and parents on platformJan 202545,000,000 users
Teachers signed up four weeks after launchJan 201112,000 teachers
Teachers signed up in first week after launchJan 201180 teachers
Team sizeFeb 201940 employees

Company-reported or press-reported figures, each dated to when it was claimed — not independently audited.

6 people who came through ClassDojo went on to found or lead other companies.

Competitors · 8

by search overlap
Teachers Pay Teachers1435 shared keywordsTeachers Pay Teachers is a marketplace where educators share and sell teaching resources and lesson plans. The platform serves teachers and educational institutions seeking classroom materials.
Outschool523 shared keywordsOutschool operates a marketplace for live online classes taught by independent instructors to children ages 3–18, covering both core subjects and interest-based topics. The platform serves homeschooled and traditionally schooled students across 183 countries.
Preply485 shared keywordsPreply is a language learning platform that serves corporate employees through its B2B offering Preply Business, enabling companies to provide language education to their workforce.
Wyzant481 shared keywordsWyzant runs an online marketplace that connects students with independent tutors and experts for one-to-one learning, letting users compare qualifications, hourly rates, and reviews to find a tutor. It offers pay-as-you-go lessons and a browser-based Learning Studio for tutor sessions.
Carecom473 shared keywordsCare.com operates a marketplace that connects families with professional caregivers for childcare, senior care, pet care, and household services. The company also provides employer-sponsored family care benefits and payroll solutions for caregivers and agencies.
Canva419 shared keywordsDesign platform; Blackbird invested when it was just an idea and in every round since.
Gynzy417 shared keywordsGynzy provides browser-based software for interactive whiteboards and touchscreens, offering teaching tools, templates, ready-made lessons, games, and activities. It is aimed at teachers to help manage the classroom, build lessons, and increase student engagement.
HMH401 shared keywordsHMH is an adaptive learning company that builds integrated K–12 education solutions—covering core curriculum, supplemental, intervention, assessment, and professional learning—delivered on a single platform. It serves educators and students, using data insights to personalize instruction and support student outcomes.

Companies competing with ClassDojo for the same Google search keywords, organic and paid, via search-intersection analysis.

Timeline · 15

launches, deals, and filings
Jan 2025
Back-to-school 2026 feature release

New features announced include automatic message translation in 190+ languages, Canva-built newsletters inside ClassDojo, multi-class Story posts, teacher-student messaging for ages 13+ in eligible rostered middle and high schools, and an interface designed for older students.

source ↗

Jan 2025
Schoolwide product expansion

Introduced Schoolwide Points (PBIS-aligned), Signups for conferences and events, school announcements with translation and read receipts, a unified school-wide messaging inbox, combined school and class feeds, multi-school account switching, and enhanced teacher join verification.

source ↗

Jul 2022
Reported $125 million push into a virtual space for kids

Forbes reported in July 2022 that ClassDojo, valued by Tencent at $1.25 billion, was rolling out its own virtual space for kids in August, positioning it against Meta and Roblox.

$125M source ↗

Feb 2019
$35 million Series C co-led by GSV and SignalFire

Round co-led by GSV and SignalFire with participation from prior investors General Catalyst and Uncork Capital, bringing total raised to $65 million.

$35M source ↗

Jan 2019
Selected Best in British Tech at the GBx Gala

Chosen by the British startup community in Silicon Valley.

source ↗

Jan 2018
Launched Beyond School family subscription

In Q4/late 2018 ClassDojo began rolling out Beyond School, an optional paid subscription inside the existing app giving families at-home learning experiences; the core product remains free for teachers, children and families.

source ↗

Jan 2017
Named one of Inc.'s 25 Most Disruptive Companies

source ↗

Jan 2016
ClassDojo app named one of Fast Company's 35 Most Innovative Apps of the Year

source ↗

Jan 2015
Founders included on Inc.'s 30 Under 30 list

source ↗

Jan 2014
Won TechCrunch Crunchie award for Best Education Startup

source ↗

Jan 2013
Named one of Forbes' 100 Most Promising Companies in the United States

source ↗

Jan 2013
Named to Fast Company's 10 Most Innovative Education Companies in the World

source ↗

Aug 2012
Raised $1.6 million in venture funding

Forbes reported ClassDojo raised $1.6 million from Paul Graham, Ron Conway, Jeff Clavier and others.

$1.6M source ↗

Jan 2012
Founders named to Forbes 30 Under 30: Education

Sam Chaudhary and Liam Don were listed in 2012 and again in 2013.

source ↗

Jan 2011
Accepted into Imagine K12 accelerator

Founders met at a startup weekend in 2011 and were accepted three months later into Imagine K12, an education-focused accelerator that became part of Y Combinator; they relocated to the Bay Area and launched the first version of ClassDojo in week eight of the program.

source ↗

Dated company events from announcements, filings, and press; legal rows summarize public dockets and regulator releases.

In the news

Research sources · 8

primary sources listed

8 public sources were cited for this profile; the first-party ones are listed here.

Frequently asked questions

What does ClassDojo do?
ClassDojo is a free school communication and community app connecting teachers, families and students worldwide.
Who founded ClassDojo?
ClassDojo was founded by Sam Chaudhary, Liam Don in 2011.
Who are ClassDojo's investors?
ClassDojo's investors include Felicis Ventures, Flucas Ventures, GSV Ventures, Imagine K12, Kapor Capital, Kortschak Investments L.P., Lerer Hippeau, SignalFire and 7 more.
Where is ClassDojo headquartered?
ClassDojo is headquartered in San Francisco, US.