Company lists · Data verified August 2026

Top 25 Data marketplace platforms based in the United States

Name: Data marketplace platforms based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 99 companies tracked

There are 99 data marketplace platforms headquartered in the United States (RevenueBase, August 2026). RevenueBase tracks 2,777 professional contacts across them, including 1,353 with verified work emails and 931 with mobile numbers. New York is the largest hub.

This list covers data marketplace 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. Data current as of August 28, 2026.

99Companies

2,777Contacts tracked

1,353Verified emails

931Mobile numbers

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The 25 largest data marketplace platforms based in the United States

Ranked by team size

Top 25 of 99 data marketplace platforms 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.
#	Company	HQ	Employees	Contacts	Verified emails
1	Quinstreet	Foster City, CA	501-1,000	1,025	690
2	Alation	Redwood City, CA	501-1,000	638	314
3	The Modern Data Company	Palo Alto, CA	201-500	170	4
4	Owneriq	Chicago, IL	201-500	137	1
5	Flyguys	Lafayette, LA	11-50	99	38
6	Intentwise	San Diego, CA	51-200	88	51
7	Infosum	NY	51-200	74	54
8	Tartle	Santa Fe, NM	n/a	62	5
9	Carbon ARC	New York, NY	11-50	54	34
10	Grandata	San Francisco, CA	51-200	27	13
11	Retargetly	Miami, FL	51-200	23	10
12	Clarista INC	New York, NY	11-50	21	16
13	Peer Data	Englewood Cliffs, NJ	11-50	20	14
14	BAZZE	San Francisco, CA	1-10	20	10
15	Blue Street Data	Carnegie, PA	11-50	17	4
16	Dclimate	New York, NY	11-50	16	10
17	Bestomer	n/a	11-50	15	8
18	Tapestri	Chicago, IL	1-10	14	3
19	Cybersyn	New York City, NY	11-50	10	7
20	D8taops	Beaverton, OR	11-50	10	6
21	Cloudquant	Chicago, IL	11-50	10	4
22	Aklivity	East Palo Alto, CA	11-50	9	6
23	TROVO	Tempe, AZ	11-50	8	2
24	Subsalt	n/a	1-10	7	5
25	H-Bar Solutions	Huntington Beach, CA	1-10	6	4

Showing 25 of 99 data marketplace platforms based in the United States

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Data marketplace platforms based in the United States at a glance

As of Aug 28, 2026

1-10Median size (employees)

New YorkLargest hub · 18 HQs

931Contacts with mobile numbers

3Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

Data marketplace platforms by metro

Metro	Companies
Data marketplace platforms in New York	18
Data marketplace platforms in San Francisco	9
Data marketplace platforms in Palo Alto	5
Data marketplace platforms in Chicago	3
Data marketplace platforms in Boston	3
Data marketplace platforms in San Diego	3
Data marketplace platforms in Austin	2

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 “data marketplace platforms”, 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; 3 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 data marketplace platforms are there based in the United States?

There are 99 data marketplace platforms headquartered in the United States as of August 2026 (RevenueBase).

What is the largest company on this list?

Quinstreet, headquartered in Foster City, tops this list with the largest team on record.

Which city has the most data marketplace platforms?

New York leads with 18 headquartered companies, followed by San Francisco (9) and Palo Alto (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 1,353 verified decision-maker contacts tracked across these 99 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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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.