Custom Software Development Agencies in New York

54 custom software development agencies are listed in New York, United States. 5 have been assessed on the Agency List Score as of September 2026; the highest-ranked is Cloudester Software at 78.0.

Ranked · 3 of 5 assessed

Ordered by Agency List Score
#1 of 5 assessed
Cloudester Software
78
Verified

Custom software, AI, and cloud engineering for healthcare, finance, and logistics

Application DevelopmentData Engineering Pipelines
#2 of 5 assessed
Sprinterra
74
Verified

Acumatica development, ERP customization, and cloud integration for finance and property management

Application DevelopmentData Engineering PipelinesDevSecOps Enablement
#3 of 5 assessed
Apptread
70
Verified

Custom software, ERP, and cloud development for BFSI, logistics, and e-commerce businesses

Application Development

Also in New York · 51 not ranked here

49 have not yet been assessed on the Agency List Score. Alphabetical.

About this ranking

What this page ranks

This page ranks 3 of the 5 assessed custom software development agencies in New York, United States — the ones carrying a published score — out of 54 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 New York, 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 5, so no award can be issued here.

The 49 custom software development agencies not yet assessed are listed on this page but not ranked.

A further 2 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 New York, United States?
54 are listed on Agency List in New York, United States. 5 of them have been assessed on the Agency List Score as of September 2026, and 3 of those carry a published score.
Which custom software development agency in New York, United States is ranked highest?
Cloudester Software, with an Agency List Score of 78.0, ranks #1 of 5 assessed agencies in Custom Software Development in New York, United States.
Why are 51 custom software development agencies listed here but not ranked?
49 of the 54 listed have not yet been assessed on the Agency List Score. A further 2 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 New York, United States cohort of 5 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.