Custom Software Development Agencies in United States

816 custom software development agencies are listed in United States. 713 have been assessed on the Agency List Score as of October 2026; the highest-ranked is Allata at 97.9.

Ranked · 578 of 713 assessed

Ordered by Agency List Score
#1 of 713 assessed
Allata
98

Analytics and strategy services for inbound lead capture and search visibility

Case Studies and Whitepapers
#2 of 713 assessed
Fora Soft
98

AI-powered video streaming and real-time interaction software

Application Development
#3 of 713 assessed
Software Development Resources
98

Custom software and mobile app development for diverse business needs

Application DevelopmentSystems Integration
#4 of 713 assessed
Helm Experience & Design
98

Digital strategy and custom software for business growth

Application Development
#5 of 713 assessed
Agile Tech Consulting
97

Custom .NET, Power BI, and mobile app development for Jacksonville-area businesses

Application Development
#6 of 713 assessed
Resource Data
97

Harnessing technology for data engineering and software services

Application DevelopmentData Engineering Pipelines
#7 of 713 assessed
Stride
97

AI-powered software engineering and legacy modernization services

Case Studies and Whitepapers
#8 of 713 assessed
Baytech Consulting
97

Custom software and AI solutions for diverse industries

Application Development
#9 of 713 assessed
Switchbox
97

Custom software solutions for complex business challenges

Case Studies and Whitepapers
#10 of 713 assessed
Nolte
97

Empowers non-tech founders with product development and strategic guidance

Product Strategy
#11 of 713 assessed
Forbytes
97

Custom software development and AI solutions for diverse industries

Data Engineering PipelinesProduct Discovery and MVP
#12 of 713 assessed
Blazerow
97

Remote software architect with experience in robust software solutions

Application DevelopmentData Engineering PipelinesDevSecOps Enablement
#13 of 713 assessed
Vault Innovation
97

Custom software and AI-driven digital product development

Application DevelopmentProduct Discovery and MVP
#14 of 713 assessed
AI Software Development & Data Consulting Partner
97

AI software development and data consulting for global engineering teams

Application DevelopmentData Engineering PipelinesDevSecOps Enablement
#14 of 713 assessed
First Factory
97

Nearshore software development and AI solutions from Costa Rica

Maintenance and Support
#16 of 713 assessed
8th Light
97

Strategic consulting for innovative product development and technical execution

Product Strategy
#17 of 713 assessed
Pragma
97

AI and Software Solutions for Banking and Retail

Data Hygiene and SyncHubSpot ImplementationLead Routing and Enrichment
#18 of 713 assessed
RTS Labs
97

AI, Data, and Software Solutions for Business Transformation

Data Engineering Pipelines
#18 of 713 assessed
LinkTech Solutions
97
Verified

Engineer-built websites, software, and SEO for Southern California businesses

AI Strategy and GovernanceApplication DevelopmentTechnical SEO
#20 of 713 assessed
Codesmithdev
97

SEO and PPC services for inbound lead capture and search visibility

Case Studies and Whitepapers
#21 of 713 assessed
OpenSource Technologies
97

Custom software, AI, and systems integration for nonprofits, schools, and healthcare clients

Application DevelopmentMaintenance and SupportSystems Integration
#22 of 713 assessed
Chro Media
97

Offshore engineering teams for custom software, mobile apps, and cloud systems

Application DevelopmentData Engineering PipelinesDevSecOps Enablement
#23 of 713 assessed
Made In Tandem
97

Custom software and data strategy for complex business challenges

Case Studies and Whitepapers
#23 of 713 assessed
Codewave
97

Enterprise software modernisation, architecture and DevOps for regulated, large-scale organisations

Case Studies and WhitepapersContent Operations and CMS

Showing the top 96 of 578 ranked agencies.

Also in United States · 238 not ranked here

103 have not yet been assessed on the Agency List Score. Alphabetical.
200 more listed here are not shown on this page.

About this ranking

What this page ranks

This page ranks 578 of the 713 assessed custom software development agencies in United States — the ones carrying a published score — out of 816 listed.

The score measures how well an agency documents its own work in public — named clients, quantified outcomes, and whether those outcomes are attributed to the agency rather than described as the client's own results. It does not measure client satisfaction, price, or availability.

Cohorts and awards

Agencies are compared within a cohort — here, Custom Software Development in United States. A cohort must be large enough to express the band being awarded: at least 8 assessed agencies for a top 25% award, 20 for top 10%, 40 for top 5%, and 300 for top 1%. This one holds 713, so the strongest award available here is top 1%.

The 103 custom software development agencies not yet assessed are listed on this page but not ranked.

A further 135 were assessed and no published evidence of their work was found, so no score is shown for them.

Read the full methodology

Paid placement

Partner agencies can buy a labelled placement block above the ranking on this page. It is always marked as paid and is never mixed into the ranked list.

Placement is paid; it does not affect the ranking, cohort membership, or any agency's score. Ranking position, cohort membership and the score itself are not for sale.

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Questions

How many custom software development agencies are in United States?
816 are listed on Agency List in United States. 713 of them have been assessed on the Agency List Score as of October 2026, and 578 of those carry a published score.
Which custom software development agency in United States is ranked highest?
Allata, with an Agency List Score of 97.9, ranks #1 of 713 assessed agencies in Custom Software Development in United States.
Why are 238 custom software development agencies listed here but not ranked?
103 of the 816 listed have not yet been assessed on the Agency List Score. A further 135 were assessed and no published evidence of their work was found, so no score is shown for them. They each have a profile and are listed below the ranking, alphabetically, rather than being hidden or mixed into it.
How is the ranking determined?
By Agency List Score, within the Custom Software Development in United States cohort of 713 assessed agencies. The score is computed from evidence published on each agency's own website: named clients, quantified outcomes, and whether the outcome is attributed to the agency. Paid placement does not affect it.