Company lists · Data verified August 2026

Top 25 CRM software developers based in the United States

Name: CRM software 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 1,238 companies tracked

There are 1,238 CRM software developers headquartered in the United States (RevenueBase, August 2026). RevenueBase tracks 18,035 professional contacts across them, including 5,847 with verified work emails and 4,652 with mobile numbers. New York is the largest hub.

This list covers CRM software 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.

1,238Companies

18,035Contacts tracked

5,847Verified emails

4,652Mobile numbers

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The 25 largest CRM software developers based in the United States

Ranked by team size

Top 25 of 1,238 CRM software 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	HIC Global Solutions	Milwaukee, WI	201-500	352	101
5	Rolustech	San Francisco, CA	201-500	325	76
6	Billingplatform	Englewood, CO	201-500	251	149
7	Trootech	Albany, NY	201-500	250	60
8	Leandata	Santa Clara, CA	51-200	207	126
9	KEAP	Chandler, AZ	201-500	200	58
10	Outboundengine	Seattle, WA	201-500	183	8
11	MST Solutions	Chandler, AZ	201-500	173	40
12	ACT	Scottsdale, AZ	51-200	170	67
13	Conexus Solutions, INC	Branchburg, NJ	51-200	149	77
14	CLOSE	New York City, NY	51-200	142	91
15	CLICK	Atlanta, GA	201-500	134	63
16	Wealthbox	n/a	51-200	128	96
17	Alliancetek INC	Orlando, FL	51-200	107	49
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	Next4biz	Los Angeles, CA	51-200	68	42

Showing 25 of 1,238 CRM software developers based in the United States

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CRM software developers based in the United States at a glance

As of Aug 28, 2026

1-10Median size (employees)

New YorkLargest hub · 52 HQs

4,652Contacts with mobile numbers

12Emails re-verified in last 30 days

Companies by employee count

1-10

659

11-50

419

51-200

121

201-500

501-1,000

1,001-5,000

5,001-10,000

CRM software developers by metro

Metro	Companies
CRM software developers in New York	52
CRM software developers in San Francisco	30
CRM software developers in Austin	25
CRM software developers in Los Angeles	25
CRM software developers in Houston	22
CRM software developers in Atlanta	21
CRM software developers in Miami	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 software 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; 12 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 software developers are there based in the United States?

There are 1,238 CRM software 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 software developers?

New York leads with 52 headquartered companies, followed by San Francisco (30) and Austin (25).

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 5,847 verified decision-maker contacts tracked across these 1,238 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.