Company lists · Data refreshed September 2026

Top 16 Knowledge exchange platforms based in the United States

RevenueBase identified 50 knowledge exchange platforms headquartered in the United States as of September 2026 and tracks 1,487 professional contacts across them, including 302 with verified work emails and 267 with mobile numbers. San Francisco is the largest hub.

This list covers knowledge exchange platforms 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, how directly it supports the match, and when it was last checked. Data refreshed September 4, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 Match evidence on every row Refreshed Sep 4, 2026 86% judged on-target in blind review
50Companies
1,487Contacts tracked
302Verified emails
267Mobile numbers
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The 16 largest knowledge exchange platforms based in the United States

Ranked by team size
Top 16 of 50 knowledge exchange platforms based in the United States, ranked by team size, largest first. Data refreshed Sep 4, 2026. Evidence rates how directly each company's own description names knowledge exchange platforms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#CompanyHeadquartersEmployeesContacts
1
QUORAIndirect evidence
Mountain View, CA, United StatesHQ checked Sep 4, 2026201-5001,038

“Quora’s mission is to grow the world’s collective intelligence.”

Source: company website · checked Sep 4, 2026
2
Edtech4dPartial evidence
Silver Spring, MD, United StatesHQ checked Sep 4, 202611-50123

“Jobskillshare is the premier platform for skill sharing and professional development.”

Source: company website · checked Sep 4, 2026
3
BrighttalkIndirect evidence
San Francisco, CA, United StatesHQ checked Sep 4, 2026201-50072

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

Source: company website · checked Sep 4, 2026
4
FORJIndirect evidence
Milwaukee, WI, United StatesHQ checked Sep 4, 202651-20066

“Forj empowers the professionals who make our world better.”

Source: company website · checked Sep 4, 2026
5
Social Knowledge, LLCPartial evidence
Southlake, TX, United StatesHQ checked Sep 4, 202611-5028

“Social Knowledge® was founded to foster online communities, sites where people with similar interests connect to harness the distributed expertise of the members.”

Source: company website · checked Sep 4, 2026
6
Insight LABIndirect evidence
Cary, NC, United StatesHQ checked Sep 4, 202611-5013

“Welcome to InsightLab, your go-to community for sparking conversations, sharing expertise, and staying on top of the latest industry insights-all while earning some exciting…”

Source: company website · checked Sep 4, 2026
7
VORAYIndirect evidence
NY, United StatesHQ checked Sep 4, 20261-1010

“Voray is the go-to place to join, build, or partner with a community.”

Source: company website · checked Sep 4, 2026
8
BravenewStrong evidence
San Francisco, CA, United StatesHQ checked Sep 4, 20261-1010

“BraveNew powers online knowledge sharing and collaboration communities for the enterprise on its proprietary platform.”

Source: company website · checked Sep 4, 2026
9
IOOIStrong evidence
Roseville, United StatesHQ checked Sep 4, 20261-106

“iOOi pronounced: I | You | We We are iOOi, a social knowledge-sharing platform.”

Source: company website · checked Sep 4, 2026
10
CommongeniusIndirect evidence
Santa Clara, CA, United StatesHQ checked Sep 4, 202611-506

“CommonGenius is an international expert community that helps professionals overcome complex challenges in and out of the office.”

Source: company website · checked Sep 4, 2026
11
The NicheworkIndirect evidence
Tempe, AZ, United StatesHQ checked Sep 4, 20261-103

“Our vision is to revolutionize the way clients access expertise and be the go-to resource for clients seeking access to niche professionals.”

Source: company website · checked Sep 4, 2026
12
ForumbeePartial evidence
Bellingham, WA, United StatesHQ checked Sep 4, 202611-502

“At Forumbee, we are on a mission to empower organizations through a comprehensive, modern cloud-based community platform.”

Source: company website · checked Sep 4, 2026
13
BuildwisePartial evidence
Washington, DC, United StatesHQ checked Sep 4, 202611-502

“BuildWise is a modern and interactive lessons-learned platform designed for construction projects.”

Source: company website · checked Sep 4, 2026
14
HowfactoryPartial evidence
Cedar Falls, IA, United StatesHQ checked Sep 4, 20261-102

“At HowFactory we believe that knowledge is more powerful when it's shared with the tribe.”

Source: company website · checked Sep 4, 2026
15
The Advisor NetworkStrong evidence
Amherst, NY, United StatesHQ checked Sep 4, 20261-102

“The Advisor Network is a platform designed to facilitate collaboration among individuals seeking to expand their knowledge and skills.”

Source: company website · checked Sep 4, 2026
16
Embrasure SpacePartial evidence
Temecula, CA, United StatesHQ checked Sep 4, 20261-101

“Embrasure Space is an online platform aimed at building a network of value for general dentists, specialist, and other professionals whose goal is to support healthcare providers…”

Source: company website · checked Sep 4, 2026

Showing 16 of 50 knowledge exchange platforms based in the United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 302 reachable decision-makers.

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Knowledge exchange platforms based in the United States at a glance

As of Sep 4, 2026
1-10Median size (employees)
San FranciscoLargest hub · 4 HQs
267Contacts with mobile numbers
Sep 4, 2026Data refreshed

Companies by employee count

1-10
36
11-50
9
51-200
1
201-500
4

Verified emails by last verification

0–30
0
31–60
17
61–90
155
90–180
126
180+
4

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 knowledge exchange platforms, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 “knowledge exchange platforms”. Matching reads each company's description, not its industry code or its name.
What we exclude
Companies whose own description does not clearly place them among knowledge exchange platforms, 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 an evidence 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, 302 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 4, 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

How many knowledge exchange platforms are there based in the United States?

RevenueBase identified 50 knowledge exchange platforms 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?

QUORA, headquartered in Mountain View, tops this list with the largest team on record.

Which city has the most knowledge exchange platforms?

San Francisco leads with 4 headquartered companies, followed by Mountain View (3) and New York (3).

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 302 verified decision-maker contacts tracked across these 50 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 4, 2026.

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Related lists

Knowledge exchange platforms by geography

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 SmartSearch, 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.