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Company lists · Data verified August 2026

Top 24 Custom software development companies based in the United States

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 8,483 companies tracked

There are 8,483 custom software development companies headquartered in the United States (RevenueBase, August 2026). RevenueBase tracks 104,646 professional contacts across them, including 20,194 with verified work emails and 13,074 with mobile numbers. New York is the largest hub.

This list covers custom software development 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.

8,483Companies
104,646Contacts tracked
20,194Verified emails
13,074Mobile numbers
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The 24 largest custom software development companies based in the United States

Ranked by team size
Top 24 of 8,483 custom software development 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
1DotsquaresBethesda, MD501-1,0001,56697
2Trigent Software INCSouthborough, MA1,001-5,0001,368115
3Unthinkable SolutionsGrandville, MI501-1,000711341
4Gemini Consulting & ServicesSaint Louis, MO501-1,000548146
5LohikaSan Mateo, CA501-1,000427133
6SolbegJersey City, NJ1,001-5,000367188
7Federal Soft Systems INCBentonville, AR501-1,00032028
8Sails Software INCNovi, MI501-1,000319112
9Valzo Soft SolutionsAlpharetta, GA1,001-5,00028710
10Amvotech Solutions INCOakbrook Terrace, IL501-1,0002817
11WaveaccessLas Vegas, NV501-1,00025445
12Advansoft International, INCArlington Heights, IL501-1,00022415
13Nextgen Technologies INCSan Jose, CA10001+16532
14SynovaSouthfield, MI1,001-5,0001481
15NIX UnitedTampa, FL1,001-5,0007725
16DevelonicaPerkasie, PA501-1,000561
17Ally Wiredsoft SolutionsPleasanton, CA501-1,000463
18Codism LLCMarlton, NJ501-1,000351
19Trinuc LLCDallas, TX501-1,000172
20Cybernoor Corporation IS NOW Buchanan TechnologiesGrapevine, TX501-1,000154
21OQ PointRedmond, WA1,001-5,000122
22DCA Services INCn/a501-1,00092
23Asesoftware GlobalMiramar, FL501-1,00073
24Objectfrontier Software OFSAlpharetta, GA501-1,00061

Showing 24 of 8,483 custom software development companies based in the United States

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Custom software development companies based in the United States at a glance

As of Aug 28, 2026
11-50Median size (employees)
New YorkLargest hub · 384 HQs
13,074Contacts with mobile numbers
44Emails re-verified in last 30 days

Companies by employee count

1-10
4,142
11-50
2,940
51-200
1,104
201-500
203
501-1,000
42
1,001-5,000
19
10001+
6

Custom software development companies by metro

MetroCompanies
Custom software development companies in New York384
Custom software development companies in Austin232
Custom software development companies in Houston168
Custom software development companies in Miami162
Custom software development companies in Los Angeles154
Custom software development companies in Chicago143
Custom software development companies in San Francisco137

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 “custom software development 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 custom software development companies are there based in the United States?

There are 8,483 custom software development companies headquartered in the United States as of August 2026 (RevenueBase).

What is the largest company on this list?

Dotsquares, headquartered in Bethesda, tops this list with the largest team on record.

Which city has the most custom software development companies?

New York leads with 384 headquartered companies, followed by Austin (232) and Houston (168).

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 20,194 verified decision-maker contacts tracked across these 8,483 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 Custom software development 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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