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Company lists · Data verified August 2026

Top 25 Employee development platform companies based in the United States

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 4,225 companies tracked

There are 4,225 employee development platform companies headquartered in the United States (RevenueBase, August 2026). RevenueBase tracks 74,121 professional contacts across them, including 24,688 with verified work emails and 24,006 with mobile numbers. New York is the largest hub.

This list covers employee development 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. Data current as of August 28, 2026.

4,225Companies
74,121Contacts tracked
24,688Verified emails
24,006Mobile numbers
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The 25 largest employee development platform companies based in the United States

Ranked by team size
Top 25 of 4,225 employee development platform companies based in the United States, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#CompanyHQEmployeesContactsVerified emails
1GP Strategies CorporationColumbia, MD1,001-5,0003,9292,212
2PaycorCincinnati, OH1,001-5,0002,6641,481
3BetterupAustin, TX501-1,0002,506170
4RevatureReston, VA1,001-5,0002,069221
5SAP SuccessfactorsSouth San Francisco, CA1,001-5,0001,929883
6BamboohrDraper, UT1,001-5,0001,8281,148
7FranklincoveyDraper, UT501-1,0001,799803
8BlackboardBoca Raton, FL1,001-5,0001,745255
9SequoiaBoston, MA1,001-5,0001,259779
10MultiverseNew York, NY501-1,0001,165454
11GUILDDenver, CO1,001-5,0001,036406
12EmpyreanHouston, TX501-1,000906523
13Greenhouse SoftwareNew York, NY501-1,000843114
14Eightfold AISanta Clara, CA501-1,000757433
15Infopro Learning, INCPlainsboro, NJ501-1,000601291
16ArticulateNew York201-500591373
17BlanchardEscondido, CA201-500524311
18KnowledgecityCarlsbad, CA201-50052326
19HumandSan Francisco, CA501-1,000487191
20PhenomAmbler, PA1,001-5,000360143
21Vantage CirclePlano, TX201-500340220
2215fiveSan Francisco, CA201-50033956
23Engage2excelMooresville, NC501-1,000268164
24LitmosSan Francisco, CA201-500230159
25TechademyNew York, NY201-50022238

Showing 25 of 4,225 employee development platform companies based in the United States

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Employee development platform companies based in the United States at a glance

As of Aug 28, 2026
1-10Median size (employees)
New YorkLargest hub · 220 HQs
24,006Contacts with mobile numbers
44Emails re-verified in last 30 days

Companies by employee count

1-10
2,789
11-50
1,019
51-200
283
201-500
75
501-1,000
25
1,001-5,000
16
10001+
8

Employee development platform companies by metro

MetroCompanies
Employee development platform companies in New York220
Employee development platform companies in San Francisco133
Employee development platform companies in Atlanta99
Employee development platform companies in Chicago95
Employee development platform companies in Austin78
Employee development platform companies in Los Angeles72
Employee development platform companies in Houston71

How this list was built

Source
The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion
Companies whose own business descriptions match “employee development platform companies”, with match quality audited by blind human judging, and headquartered in the United States.
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
Contact records re-verify on a rolling cadence; 44 contacts on this list were re-verified in the last 30 days.
Refresh
Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many employee development platform companies are there based in the United States?

There are 4,225 employee development platform companies headquartered in the United States as of August 2026 (RevenueBase).

What is the largest company on this list?

GP Strategies Corporation, headquartered in Columbia, tops this list with the largest team on record.

Which city has the most employee development platform companies?

New York leads with 220 headquartered companies, followed by San Francisco (133) and Atlanta (99).

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 24,688 verified decision-maker contacts tracked across these 4,225 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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Related lists

Browse: Companies home · All United States lists · All Employee development platform companies lists · New lists

About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.

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