Company lists · Data verified August 2026

Top 25 CRM developers based in the United States

Name: CRM developers 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 1,140 companies tracked

There are 1,140 CRM developers headquartered in the United States (RevenueBase, August 2026). RevenueBase tracks 16,564 professional contacts across them, including 5,564 with verified work emails and 4,513 with mobile numbers. New York is the largest hub.

This list covers CRM developers 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.

1,140Companies

16,564Contacts tracked

5,564Verified emails

4,513Mobile numbers

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The 25 largest CRM developers based in the United States

Ranked by team size

Top 25 of 1,140 CRM developers 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	Marigold	Nashville, TN	201-500	818	147
3	Vendasta	Boston, MA	501-1,000	768	268
4	HCL Unica	Sunnyvale, CA	10001+	380	8
5	HIC Global Solutions	Milwaukee, WI	201-500	352	101
6	Rolustech	San Francisco, CA	201-500	325	76
7	Stayinfront	Fairfield, NJ	201-500	324	153
8	Cargas Systems	Lancaster, PA	51-200	236	162
9	Mantra	New York, NY	201-500	216	3
10	Leandata	Santa Clara, CA	51-200	207	126
11	KEAP	Chandler, AZ	201-500	200	58
12	Accelerize 360	Dallas, TX	51-200	191	87
13	MST Solutions	Chandler, AZ	201-500	173	40
14	ACT	Scottsdale, AZ	51-200	170	67
15	Conexus Solutions, INC	Branchburg, NJ	51-200	149	77
16	CLOSE	New York City, NY	51-200	142	91
17	Wealthbox	n/a	51-200	128	96
18	Agile CRM By Mantra	Dallas, TX	51-200	100	3
19	Lava Automation	Portland, OR	201-500	93	19
20	Welcomehome Software	Atlanta, GA	51-200	86	66
21	Arcsona	Campbell, CA	51-200	80	49
22	500apps By Mantra	New York, NY	201-500	76	2
23	Constant Contact Lead GEN & CRM	Gainesville, FL	1,001-5,000	71	11
24	Builder Prime	Denver, CO	51-200	70	45
25	Dealership Performance CRM	Wilsonville, OR	51-200	66	4

Showing 25 of 1,140 CRM developers based in the United States

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CRM developers based in the United States at a glance

As of Aug 28, 2026

1-10Median size (employees)

New YorkLargest hub · 53 HQs

4,513Contacts with mobile numbers

10Emails re-verified in last 30 days

Companies by employee count

1-10

615

11-50

382

51-200

109

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

CRM developers by metro

Metro	Companies
CRM developers in New York	53
CRM developers in San Francisco	27
CRM developers in Austin	26
CRM developers in Dallas	21
CRM developers in Houston	20
CRM developers in Chicago	20
CRM developers in Los Angeles	20

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 developers”, 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 developers are there based in the United States?

There are 1,140 CRM developers 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 developers?

New York leads with 53 headquartered companies, followed by San Francisco (27) and Austin (26).

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 5,564 verified decision-maker contacts tracked across these 1,140 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.