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Top Hat

Top Hat is a Toronto edtech company replacing print textbooks with interactive digital ones and turning lectures into active classrooms. Founded in 2009 by Mike Silagadze and Mohsen Shahini out of an apartment near the University of Waterloo, it reached 3 million+ students and raised a $130M USD Series E in 2021.

EdTechTorontoFounded 2009tophat.com
350people, based almost entirely in TorontoTechTO stage 2018-08-17
1,000%+year-over-year jump in inbound leads after Top Hat built and launched a remote proctoring tool in one week, April 2020TechTO stage 2020-04-09
$130M USDSeries E led by Georgian, February 2021 — announced alongside the CEO handoverTop Hat press release 2021-02-04
3M+students enrolled in Top Hat courses at 750 of the top 1,000 higher-ed institutions in North America (2021)Top Hat press release 2021-02-04

The people

What they build

Interactive eTextDigital, interactive replacements for traditional textbooks
In-Class EngagementPolls, quizzes and activities students answer on their own devices
Test & AssessmentHomework, attendance and exams, including the remote proctoring built in a week in April 2020
Ace AI AssistantAI assistant for instructors and students
Aktiv ChemistryChemistry courseware

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Working at Top Hat

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On the TechTO stage

Every talk is searchable — ask the archive about Top Hat

About

Top Hat sells teaching software to higher education — interactive eTexts, in-class polling and quizzing, homework and exams students take on their own devices. Silagadze and Mohsen Shahini started it in 2009 in an apartment near the University of Waterloo, and it grew into a Toronto company of 350+ people. Its defining move was a go-to-market pivot: universities praised the product but wouldn't fund it, so Top Hat sold directly to professors and students on a small subscription instead — the story Silagadze told on the TechTO stage in 2018. He handed the CEO job to Joe Rohrlich in March 2021 and stayed on the board. The company is still operating.

Backers

Union Square Ventures, Georgian, Inovia, Emergence Capital · $130M USD Series E (Feb 2021) after a $55M USD Series D (Feb 2020)

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Quick answers

What does Top Hat do?

It sells teaching software to universities and colleges — interactive eTexts in place of print textbooks, in-class polling and quizzing, and homework and exams students complete on their own phones and laptops.

Who founded Top Hat?

Mike Silagadze and Mohsen Shahini, in 2009, out of an apartment near the University of Waterloo. Silagadze was CEO for 12 years and stepped down in March 2021; Joe Rohrlich took over.

How did Top Hat get its first traction?

By changing its buyer. Universities said the product would help students but wouldn't pay — their variable funding follows research, not teaching. So Top Hat sold directly to professors and students for a small subscription fee, the way textbook publishers had, at no cost to the university.

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Maintained by TechTO · facts sourced and dated · last reviewed Aug 17, 2026