Company lists · Data refreshed September 2026

Top 25 Synchronous learning platform companies based in the United States

RevenueBase identified 189 synchronous learning platform companies headquartered in the United States as of September 2026 and tracks 10,060 professional contacts across them, including 883 with verified work emails and 2,628 with mobile numbers. San Francisco is the largest hub.

This list covers synchronous learning platform companies headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 6, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 6, 2026 86% judged on-target in blind review
189Companies
10,060Contacts tracked
883Verified emails
2,628Mobile numbers
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The 25 largest synchronous learning platform companies based in the United States

Ranked by team size
Top 25 of 189 synchronous learning platform companies based in the United States, ranked by team size, largest first. Data refreshed Sep 6, 2026. RevenueBase Smart Search rates how each company's information relates to synchronous learning platform companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Strong evidenceSt Louis, MO, United StatesHQ checked Sep 6, 2026n/a5,890 contacts →

“Varsity Tutors, a Nerdy (NYSE: NRDY) company, is a leading platform for live online learning, with a mission to transform the way people learn through technology.”

Source: company website · checked Sep 6, 2026
2Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 6, 2026n/a1,426 contacts →

“Outschool is an online learning marketplace built around kids' actual interests, not a standardized curriculum or a system that decides what they should learn when.”

Source: company website · checked Sep 6, 2026
3Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 6, 202651-200324 contacts →

“Welcome to Graphy!”

Source: company website · checked Sep 6, 2026
4Strong evidenceAlpharetta, GA, United StatesHQ checked Sep 6, 2026201-500242 contacts →

“Turito is a revolutionary e-learning platform that offers the best-in-class online education to students across the globe.”

Source: company website · checked Sep 6, 2026
5Partial evidenceDania Beach, United StatesHQ checked Sep 6, 2026201-500208 contacts →

“Nearpod provides real-time insights into student understanding through interactive lessons, interactive videos, gamification & activities - all in a single platform.”

Source: company website · checked Sep 6, 2026
6Indirect evidenceRemote, United StatesHQ checked Sep 6, 2026201-500137 contacts →

“Airmeet - Revolutionizing Webinars and Events At Airmeet, we believe webinars should be more than just digital gatherings-they should be immersive experiences that captivate and…”

Source: company website · checked Sep 6, 2026
7Partial evidenceEncinitas, CA, United StatesHQ checked Sep 6, 202651-200116 contacts →

“Hone's live skills development platform combines live virtual classes with expert coaches and cutting-edge program management technology for effective, scalable training.”

Source: company website · checked Sep 6, 2026
8Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 6, 202611-50106 contacts →

“Pencil Spaces consolidates a complete virtual classroom into one browser tab, providing video calls, unlimited whiteboards, chats, file sharing, and more.”

Source: company website · checked Sep 6, 2026
9Partial evidenceLake Forest, CA, United StatesHQ checked Sep 6, 202651-200102 contacts →

“Our Who: WeVideo is a team of passionate individuals committed to transforming education through interactive video learning.”

Source: company website · checked Sep 6, 2026
10Strong evidenceCupertino, CA, United StatesHQ checked Sep 6, 202651-20079 contacts →

“Ambow is leading the shift toward phygital (physical + digital) learning environments through HybriU, our AI-driven platform that seamlessly integrates physical spaces with…”

Source: company website · checked Sep 6, 2026
11Indirect evidenceAiken, SC, United StatesHQ checked Sep 6, 2026n/a76 contacts →

“Lessonface.com connects students with great music, language, and arts teachers for live lessons online.”

Source: company website · checked Sep 6, 2026
12Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 6, 2026201-50073 contacts →

“BrightTALK brings professionals and businesses together to learn and grow.”

Source: company website · checked Sep 6, 2026
13Indirect evidenceDover, DE, United StatesHQ checked Sep 6, 202651-20048 contacts →

“Scholege revolutionizes online education by connecting your institution with the most prestigious teachers from top universities worldwide.”

Source: company website · checked Sep 6, 2026
14Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 6, 202651-20037 contacts →

“Engageli is a purpose-built comprehensive learning environment designed by leading educators to foster active, collaborative learning, and deeper peer-to-peer connections.”

Source: company website · checked Sep 6, 2026
15Indirect evidenceSan Jose, CA, United StatesHQ checked Sep 6, 2026n/a37 contacts →

“Adobe Connect empowers you to create exceptional digital trainings, webinars, and collaboration experiences.”

Source: company website · checked Sep 6, 2026
16Partial evidenceSyracuse, NY, United StatesHQ checked Sep 6, 202651-20033 contacts →

“PEC is a next-gen, human-driven virtual learning solutions company.”

Source: company website · checked Sep 6, 2026
17Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 6, 202611-5028 contacts →

“Versal is an online eLearning platform for the modern workforce.”

Source: company website · checked Sep 6, 2026
18Indirect evidenceMarion, IN, United StatesHQ checked Sep 6, 202611-5024 contacts →

“Campus is an EdTech company headquartered in Marion, Indiana.”

Source: company website · checked Sep 6, 2026
19Strong evidenceHerndon, VA, United StatesHQ checked Sep 6, 202611-5024 contacts →

“BrainCert Unified Training Platform™ offers a comprehensive and secure collaborative learning solution that empowers your entire eLearning journey from start to finish.”

Source: company website · checked Sep 6, 2026
20Partial evidenceMiddletown, DE, United StatesHQ checked Sep 6, 202651-20024 contacts →

“The SEE.GURU platform is designed for online classes and remote video consultations.”

Source: company website · checked Sep 6, 2026
21Indirect evidenceNew York, NY, United StatesHQ checked Sep 6, 202651-20023 contacts →

“Explain Everything, Inc.”

Source: company website · checked Sep 6, 2026
22Indirect evidenceHerndon, VA, United StatesHQ checked Sep 6, 202611-5022 contacts →

“Connect For Education (C4E) is an independent, academic and professional development education technology company.”

Source: company website · checked Sep 6, 2026
23Partial evidenceNew York, NY, United StatesHQ checked Sep 6, 202611-5019 contacts →

“Shindig is a platform for large scale online events.”

Source: company website · checked Sep 6, 2026
24Indirect evidenceSag Harbor, NY, United StatesHQ checked Sep 6, 202611-5019 contacts →

“VoiceThread is the evolution of online communication.”

Source: company website · checked Sep 6, 2026
25Indirect evidenceMobile, AL, United StatesHQ checked Sep 6, 202651-20018 contacts →

“Lanes is a virtual classroom that empowers L&D departments to deliver meaningful and engaging virtual training and scale it consistently across entire organisation.”

Source: company website · checked Sep 6, 2026

Showing 25 of 189 synchronous learning platform companies based in the United States

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Synchronous learning platform companies based in the United States at a glance

As of Sep 6, 2026
8.8%Verified-email coverage
26.1%Mobile-number coverage
53.2Average contacts per company
11-50Median size (employees)
10.1%Largest-city concentration · San Francisco
Sep 6, 2026Page data refreshed

Companies by employee count

1-10
67
11-50
84
51-200
27
201-500
7
501-1,000
3
10001+
1

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among synchronous learning platform companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in the United States whose own description of what they do matches “synchronous learning platform companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names synchronous learning platform companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among synchronous learning platform companies, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every listed company carries at least one verified work email, 883 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on September 6, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names synchronous learning platform companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many synchronous learning platform companies are there based in the United States?

RevenueBase identified 189 synchronous learning platform companies headquartered in the United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Varsity Tutors, A Nerdy Company, headquartered in St Louis, tops this list with the largest team on record.

Which city has the most synchronous learning platform companies?

San Francisco leads with 19 headquartered companies, followed by New York (18) and San Jose (5).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 883 verified decision-maker contacts tracked across these 189 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 6, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.