Company lists · Data verified August 2026

Top 25 CRM integration platforms based in the United States

Name: CRM integration 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 867 companies tracked

There are 867 CRM integration platforms headquartered in the United States (RevenueBase, August 2026). RevenueBase tracks 15,124 professional contacts across them, including 5,543 with verified work emails and 4,344 with mobile numbers. New York is the largest hub.

This list covers CRM integration 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.

867Companies

15,124Contacts tracked

5,543Verified emails

4,344Mobile numbers

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The 25 largest CRM integration platforms based in the United States

Ranked by team size

Top 25 of 867 CRM integration 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	Klaviyo	Boston, MA	1,001-5,000	2,859	1,624
2	Cloud Software Group	Burlington, MA	10001+	2,023	947
3	ART Technology Group	Cambridge, MA	501-1,000	1,063	4
4	Rolustech	San Francisco, CA	201-500	325	76
5	Listrak	Lititz, PA	201-500	298	173
6	Trootech	Albany, NY	201-500	250	60
7	Greytrix	San Francisco, CA	201-500	217	54
8	Leandata	Santa Clara, CA	51-200	207	126
9	Softclouds	San Diego, CA	201-500	185	108
10	CLOSE	New York City, NY	51-200	142	91
11	CLICK	Atlanta, GA	201-500	134	63
12	Wealthbox	n/a	51-200	128	96
13	Ovationcxm	Tiburon, CA	51-200	112	50
14	Insuredmine	Richardson, TX	51-200	107	72
15	Agile CRM By Mantra	Dallas, TX	51-200	100	3
16	Arcsona	Campbell, CA	51-200	80	49
17	Tebillion	New York	51-200	79	27
18	Insightly CRM By Unbounce	San Francisco, CA	51-200	73	13
19	Constant Contact Lead GEN & CRM	Gainesville, FL	1,001-5,000	71	11
20	Builder Prime	Denver, CO	51-200	70	45
21	Dealership Performance CRM	Wilsonville, OR	51-200	66	4
22	Qantler Technologies	Edison, NJ	51-200	65	8
23	Ireckonu	New York, NY	51-200	62	40
24	White CUP	Garden City, ID	51-200	52	39
25	Cherwell Software	Colorado Springs, CO	501-1,000	48	17

Showing 25 of 867 CRM integration platforms based in the United States

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CRM integration platforms based in the United States at a glance

As of Aug 28, 2026

1-10Median size (employees)

New YorkLargest hub · 48 HQs

4,344Contacts with mobile numbers

10Emails re-verified in last 30 days

Companies by employee count

1-10

446

11-50

300

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

CRM integration platforms by metro

Metro	Companies
CRM integration platforms in New York	48
CRM integration platforms in Austin	20
CRM integration platforms in San Francisco	19
CRM integration platforms in Los Angeles	18
CRM integration platforms in Boston	15
CRM integration platforms in Houston	15
CRM integration platforms in Chicago	15

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 “CRM integration 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; 10 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 CRM integration platforms are there based in the United States?

There are 867 CRM integration platforms headquartered in the United States as of August 2026 (RevenueBase).

What is the largest company on this list?

Klaviyo, headquartered in Boston, tops this list with the largest team on record.

Which city has the most CRM integration platforms?

New York leads with 48 headquartered companies, followed by Austin (20) and San Francisco (19).

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 5,543 verified decision-maker contacts tracked across these 867 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.