Company lists · Data refreshed September 2026

Top 25 Custom software development startups based in New York, United States

Name: Custom software development startups based in New York, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 566 companies tracked

RevenueBase identified 566 custom software development startups headquartered in New York, United States as of September 2026 and tracks 15,359 professional contacts across them, including 5,216 with verified work emails. Across the United States, New York is the largest hub for this category.

This list covers custom software development startups headquartered in New York, United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 29, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 29, 2026 86% judged on-target in blind review

566Companies

15,359Contacts tracked

5,216Verified emails

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The 25 largest custom software development startups based in New York, United States

Ranked by team size

Top 25 of 566 custom software development startups based in New York, United States, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to custom software development startups: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Dataart	Partial evidence	New York, NY, United StatesHQ checked Sep 29, 2026	5,001-10,000	5,249 contacts →
	Partial evidence “DataArt is a global software engineering firm that delivers breakthrough data, analytics, and AI platforms for the world’s most demanding organizations.” Source: RevenueBase Database · checked Sep 29, 2026
2	Amtex Systems INC	Partial evidence	New York, NY, United StatesHQ checked Sep 29, 2026	1,001-5,000	797 contacts →
	Partial evidence “Founded in 1997, with headquarters on Wall Street, New York, Amtex operates across four continents, delivering digital solutions and technical expertise in software, BI, mobile…” Source: RevenueBase Database · checked Sep 29, 2026
3	SJ Innovation LLC	Partial evidence	New York, United StatesHQ checked Sep 29, 2026	51-200	341 contacts →
	Partial evidence “Established in 2004, SJ Innovation has completed more than a decade in the software industry.” Source: RevenueBase Database · checked Sep 29, 2026
4	Arhamsoft	Indirect evidence	New York, NY, United StatesHQ checked Sep 29, 2026	201-500	306 contacts →
	Indirect evidence “Established in 2007, ArhamSoft Pvt.” Source: RevenueBase Database · checked Sep 29, 2026
5	Abto Software	Strong evidence	New York, United StatesHQ checked Sep 29, 2026	201-500	242 contacts →
	Strong evidence “Abto Software is a full-cycle software development company that combines scientific research, R&D experiments, and engineering to resolve business challenges since 2007.” Source: RevenueBase Database · checked Sep 29, 2026
6	Zemoga	Indirect evidence	New York, NY, United StatesHQ checked Sep 29, 2026	201-500	214 contacts →
	Indirect evidence “Zemoga is now Monks Technology Services, part of Monks.” Source: RevenueBase Database · checked Sep 29, 2026
7	Intellectsoft	Strong evidence	New York, NY, United StatesHQ checked Sep 29, 2026	51-200	210 contacts →
	Strong evidence “Intellectsoft is a custom software development and AI engineering company that has been building production-grade systems for enterprises since 2007.” Source: RevenueBase Database · checked Sep 29, 2026
8	Computools	Strong evidence	New York, United StatesHQ checked Sep 29, 2026	201-500	189 contacts →
	Strong evidence “Computools is a global software development and consulting company with over 250 engineers and 400+ completed projects.” Source: RevenueBase Database · checked Sep 29, 2026
9	28stone	Partial evidence	New York, NY, United StatesHQ checked Sep 29, 2026	201-500	167 contacts →
	Partial evidence “28Stone was founded in 2011 to deliver software that brings out the best in every client we serve.” Source: RevenueBase Database · checked Sep 29, 2026
10	Knubisoft	Strong evidence	New York, NY, United StatesHQ checked Sep 29, 2026	51-200	141 contacts →
	Strong evidence “KnubiSoft is a full-cycle technology solutions provider that focuses on the development of top-class software and builds its own unique products.” Source: RevenueBase Database · checked Sep 29, 2026
11	Bajra Technologies	Indirect evidence	New York, NY, United StatesHQ checked Sep 29, 2026	51-200	137 contacts →
	Indirect evidence “Bajra is a tech shop.” Source: RevenueBase Database · checked Sep 29, 2026
12	Spericorn Technology INC	Indirect evidence	New York, NY, United StatesHQ checked Sep 29, 2026	501-1,000	128 contacts →
	Indirect evidence “Spericorn is a digital technology service and solutions provider, headquartered in New York.” Source: RevenueBase Database · checked Sep 29, 2026
13	Agicent Technologies	Strong evidence	New York, NY, United StatesHQ checked Sep 29, 2026	51-200	126 contacts →
	Strong evidence “Top Outsource software development and App Development Company.” Source: RevenueBase Database · checked Sep 29, 2026
14	Inheritx Solutions PVT LTD	Indirect evidence	New York, NY, United StatesHQ checked Sep 29, 2026	51-200	125 contacts →
	Indirect evidence “As per our Company name InheritX our team inherits (creates extended version) X ( anything).” Source: RevenueBase Database · checked Sep 29, 2026
15	Runtime Revolution	Partial evidence	New York, NY, United StatesHQ checked Sep 29, 2026	51-200	118 contacts →
	Partial evidence “We’re a team of developers, QA testers, and designers working successfully since 2006 with startups and corporate companies from all over the world, delivering the best…” Source: RevenueBase Database · checked Sep 29, 2026
16	Pixelplex	Strong evidence	New York, NY, United StatesHQ checked Sep 29, 2026	51-200	115 contacts →
	Strong evidence “PixelPlex is an award-winning custom software development company with a proven track record, a mix of broad technology expertise, innovative business culture and over 100…” Source: RevenueBase Database · checked Sep 29, 2026
17	Gabriels Technology Solutions	Indirect evidence	New York, NY, United StatesHQ checked Sep 29, 2026	51-200	112 contacts →
	Indirect evidence “Established in 1994, Gabriels Technology Solutions (GTS) is located in New York City with owned and managed overseas operations in Brasov Romania, Chennai India and Madurai India.” Source: RevenueBase Database · checked Sep 29, 2026
18	Iocod Infotech	Strong evidence	New York, NY, United StatesHQ checked Sep 29, 2026	51-200	106 contacts →
	Strong evidence “IOCOD is a US-based software development company specializing in ERP and CRM systems.” Source: RevenueBase Database · checked Sep 29, 2026
19	Hashlogics	Strong evidence	New York, NY, United StatesHQ checked Sep 29, 2026	51-200	106 contacts →
	Strong evidence “Hashlogics redefines software development as an art form, crafting cutting-edge solutions tailored for web, desktop, and mobile platforms.” Source: RevenueBase Database · checked Sep 29, 2026
20	GBH	Indirect evidence	New York, United StatesHQ checked Sep 29, 2026	51-200	102 contacts →
	Indirect evidence “We take pride in being the trusted partner for individuals and organizations crafting exceptional digital experiences.” Source: RevenueBase Database · checked Sep 29, 2026
21	Jetsoftpro	Strong evidence	New York, United StatesHQ checked Sep 29, 2026	201-500	94 contacts →
	Strong evidence “JetSoftPro is a team and network of tech professionals ready to help your business achieve its technology objectives, through superior software development and data science.” Source: RevenueBase Database · checked Sep 29, 2026
22	Matrix Marketers	Partial evidence	New York, United StatesHQ checked Sep 29, 2026	201-500	92 contacts →
	Partial evidence “We develop customized solutions based on your specific business needs in your industry.” Source: RevenueBase Database · checked Sep 29, 2026
23	Code Upscale	Partial evidence	New York, NY, United StatesHQ checked Sep 29, 2026	51-200	90 contacts →
	Partial evidence “At Code Upscale, we specialize in turning business ideas into reality through custom technology solutions.” Source: RevenueBase Database · checked Sep 29, 2026
24	Mean3	Indirect evidence	New York, NY, United StatesHQ checked Sep 29, 2026	51-200	90 contacts →
	Indirect evidence “We offer you all types of services and solutions, by constantly pushing ourselves and our approach to the edge, and combining all our creative backgrounds to create an experience…” Source: RevenueBase Database · checked Sep 29, 2026
25	Nuventure Connect	Indirect evidence	New York, NY, United StatesHQ checked Sep 29, 2026	51-200	88 contacts →
	Indirect evidence “Nuventure Connect, an ISO 27001:2022 and SOC 2 certified company, leverages deep technology expertise to solve complex business problems, empowering clients worldwide.” Source: RevenueBase Database · checked Sep 29, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: custom software development startups. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names custom software development startups.
Partial evidence: Its own public description names part of custom software development startups, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name custom software development startups. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 566 custom software development startups based in New York, United States

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Custom software development startups based in New York, United States at a glance

As of Sep 29, 2026

34.0%Verified-email coverage

27.1Average contacts per company

11-50Median size (employees)

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

194

11-50

224

51-200

109

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured across the whole United States list rather than for New York, so it is reported there. Company counts and contact totals on this page are exact for New York, over 566 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among custom software development startups, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in New York, United States whose own description of what they do matches “custom software development startups”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names custom software development startups), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among custom software development startups, and records with no verified work email. Companies headquartered outside New York are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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: Every listed company carries at least one verified work email, 5,216 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 29, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Custom software development startups by metro in the United States

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names custom software development startups, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many custom software development startups are there based in New York, United States?

RevenueBase identified 566 custom software development startups headquartered in New York, United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Dataart, headquartered in New York, tops this list with the largest team on record.

Which city in the United States has the most custom software development startups?

New York leads the United States with 566 headquartered companies, followed by Austin (351) and Houston (252).

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 5,216 verified decision-maker contacts tracked across these 566 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 29, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 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 with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.