Company lists · Data refreshed September 2026

Top 25 Custom windows software companies based in the United States

Name: Custom windows software companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 818 companies tracked

RevenueBase identified 818 custom windows software companies headquartered in the United States as of September 2026 and tracks 5,911 professional contacts across them, including 1,478 with verified work emails. New York is the largest hub.

This list covers custom windows software 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. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 28, 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 28, 2026 86% judged on-target in blind review

818Companies

5,911Contacts tracked

1,478Verified emails

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The 25 largest custom windows software companies based in the United States

Ranked by team size

Top 25 of 818 custom windows software companies based in the United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to custom windows software companies: 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	Softura	Partial evidence	Farmington Hills, MI, United StatesHQ checked Sep 28, 2026	201-500	534 contacts →
	Partial evidence “Softura is an organization that specializes in providing state-of-the-art software solutions on a wide range of platforms to simplify any un-scalable process.” Source: RevenueBase Database · checked Sep 28, 2026
2	Integrant, INC	Partial evidence	San Diego, CA, United StatesHQ checked Sep 28, 2026	201-500	280 contacts →
	Partial evidence “For more than 35 years, Integrant has engineered enterprise software for companies that can’t afford to get it wrong, in medical devices, life sciences, pharma, financial…” Source: RevenueBase Database · checked Sep 28, 2026
3	Develux	Strong evidence	Kissimmee, United StatesHQ checked Sep 28, 2026	51-200	223 contacts →
	Strong evidence “Develux offers full-cycle custom software development services that align with your company’s unique needs and goals.” Source: RevenueBase Database · checked Sep 28, 2026
4	Syberry	Strong evidence	Austin, TX, United StatesHQ checked Sep 28, 2026	201-500	181 contacts →
	Strong evidence “Syberry Corporation is a global custom software engineering company.” Source: RevenueBase Database · checked Sep 28, 2026
5	SYMPH	Strong evidence	Mountain View, CA, United StatesHQ checked Sep 28, 2026	51-200	147 contacts →
	Strong evidence “We build custom software that solves real business problems, not just software that works, but software that changes how your team operates and how your customers experience your…” Source: RevenueBase Database · checked Sep 28, 2026
6	Softxpert	Partial evidence	Anaheim, CA, United StatesHQ checked Sep 28, 2026	51-200	107 contacts →
	Partial evidence “Softxpert is a global Software Development Company that was originally established with a basic mission to provide for a real need in the market for quality software applications…” Source: RevenueBase Database · checked Sep 28, 2026
7	Capsher Technology	Strong evidence	College Station, TX, United StatesHQ checked Sep 28, 2026	51-200	80 contacts →
	Strong evidence “Since 1994, Capsher Technology has tackled mission-critical business problems with custom software.” Source: RevenueBase Database · checked Sep 28, 2026
8	Newdream Data Systems	Partial evidence	Carrollton, TX, United StatesHQ checked Sep 28, 2026	51-200	78 contacts →
	Partial evidence “Newdream is a rapidly growing custom development and services company with headquarters in USA & development center in India.” Source: RevenueBase Database · checked Sep 28, 2026
9	PSA Consulting	Strong evidence	Greenville, SC, United StatesHQ checked Sep 28, 2026	11-50	76 contacts →
	Strong evidence “PSA provides innovative, custom software solutions for your business challenges.” Source: RevenueBase Database · checked Sep 28, 2026
10	Primero Systems	Strong evidence	San Diego, CA, United StatesHQ checked Sep 28, 2026	51-200	59 contacts →
	Strong evidence “Primero Systems is a custom software development company focused on building and supporting enterprise applications for complex business environments.” Source: RevenueBase Database · checked Sep 28, 2026
11	RIA Solutions Group	Partial evidence	Winston-salem, NC, United StatesHQ checked Sep 28, 2026	51-200	58 contacts →
	Partial evidence “RIA Solutions Group was founded to provide a better option for software development services, outsourcing and development partnering.” Source: RevenueBase Database · checked Sep 28, 2026
12	Railroad19	Strong evidence	Saratoga Springs, NY, United StatesHQ checked Sep 28, 2026	51-200	51 contacts →
	Strong evidence “At Railroad19, we develop customized software solutions that make your processes smarter and your bottom line stronger.” Source: RevenueBase Database · checked Sep 28, 2026
13	Businessware Technologies INC	Partial evidence	League City, TX, United StatesHQ checked Sep 28, 2026	51-200	51 contacts →
	Partial evidence “Businessware Technologies Inc.(BWT) is a software development company, a Microsoft Gold Partner with offices in the USA and Russia.” Source: RevenueBase Database · checked Sep 28, 2026
14	Sweetsoft INC	Partial evidence	Santa Monica, CA, United StatesHQ checked Sep 28, 2026	51-200	51 contacts →
	Partial evidence “We are a full-service software development company.” Source: RevenueBase Database · checked Sep 28, 2026
15	WBPRO	Strong evidence	Orlando, FL, United StatesHQ checked Sep 28, 2026	51-200	50 contacts →
	Strong evidence “We’re an information technology company specializing in the development and implementation of innovative custom software solutions.” Source: RevenueBase Database · checked Sep 28, 2026
16	Gehtsoft USA LLC	Partial evidence	Raleigh, NC, United StatesHQ checked Sep 28, 2026	51-200	46 contacts →
	Partial evidence “At Gehtsoft, we bring your vision to life by going beyond the specs to engineer bold, transformative software that drives results and creates a lasting impact- Over 25 years of…” Source: RevenueBase Database · checked Sep 28, 2026
17	Insignia Business Solutions	Strong evidence	Baltimore, MD, United StatesHQ checked Sep 28, 2026	11-50	42 contacts →
	Strong evidence “At Insignia Business Solutions (IBS), we help businesses accelerate growth through AI-powered automation, custom software development, web applications, mobile applications, staff…” Source: RevenueBase Database · checked Sep 28, 2026
18	DVG	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	51-200	41 contacts →
	Indirect evidence “DVG is a creative technology company focused on building solutions that generate tangible business value for our clients.” Source: RevenueBase Database · checked Sep 28, 2026
19	Nextupgrad WEB Solutions	Strong evidence	New York, NY, United StatesHQ checked Sep 28, 2026	51-200	38 contacts →
	Strong evidence “NextUpgrad is one of the leading Custom Software Development company in New York, USA.” Source: RevenueBase Database · checked Sep 28, 2026
20	Bwsoft Management, LLC	Strong evidence	Sheridan, WY, United StatesHQ checked Sep 28, 2026	51-200	37 contacts →
	Strong evidence “Bitworks has 18 years of successful experience developing complex business software for customers worldwide.” Source: RevenueBase Database · checked Sep 28, 2026
21	Atlasiko INC	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 28, 2026	11-50	36 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026
22	TOTS	Strong evidence	DE, United StatesHQ checked Sep 28, 2026	11-50	34 contacts →
	Strong evidence “We are a living organization powered by people that bond with clients, guided by the passion to serve others with custom software solutions.” Source: RevenueBase Database · checked Sep 28, 2026
23	Sonora Software	Partial evidence	Phoenix, AZ, United StatesHQ checked Sep 28, 2026	51-200	33 contacts →
	Partial evidence “Sonora Software is a full-cycle software production company with near-shore operations in Ciudad Obregon, Mexico.” Source: RevenueBase Database · checked Sep 28, 2026
24	Goteso	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 28, 2026	11-50	33 contacts →
	Partial evidence “Goteso is a product and service based software development firm.” Source: RevenueBase Database · checked Sep 28, 2026
25	Leaf Software Solutions	Partial evidence	Carmel, IN, United StatesHQ checked Sep 28, 2026	11-50	31 contacts →
	Partial evidence “For 39 years, Leaf Software Solutions has delivered mission-critical software for businesses that need it done right.” Source: RevenueBase Database · checked Sep 28, 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 windows software companies. 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 windows software companies.
Partial evidence: Its own public description names part of custom windows software companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name custom windows software companies. 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 818 custom windows software companies based in the United States

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

As of Sep 28, 2026

25.0%Verified-email coverage

7.2Average contacts per company

1-10Median size (employees)

3.5%Largest-city concentration · New York

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

526

11-50

221

51-200

201-500

501-1,000

1,001-5,000

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 818 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 windows software companies, 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 the United States whose own description of what they do matches “custom windows software companies”. 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 windows software companies), 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 windows software companies, and records with no verified work email. Companies headquartered outside United States 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, 1,478 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 28, 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 windows software companies by metro

Custom windows software companies in New York29

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 windows software companies, 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 windows software companies are there based in the United States?

RevenueBase identified 818 custom windows software companies headquartered in the 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?

Softura, headquartered in Farmington Hills, tops this list with the largest team on record.

Which city has the most custom windows software companies?

New York leads with 29 headquartered companies, followed by Austin (21) and Houston (18).

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 1,478 verified decision-maker contacts tracked across these 818 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 28, 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.