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Top Software Development Companies in the USA

235 of 618 software development companies ranked on evidence in the Q4 2026 edition.

We list 25 software development companies in the USA. The order comes from what each firm publishes and what has been verified about it, never from payment — at the top right now: Doyenhub Software Solutions, CURTIS Digital, Inc. and Diff Agency.

Before you shortlist, check

A discovery or specification phase before a fixed estimate
Who is on the team, and whether they stay for the whole project
That you own the intellectual property and the source code
Testing, documentation and maintenance after release

TrustList ranking

Q4 2026 edition

235 of 618 software development companies ranked on evidence held on 9 October 2026: client reviews, vetting, awards and facts each business states on its own website, which we read and date. Nobody pays to be placed.

Positions are fixed for the quarter; the next edition is due in January 2027.

How this is ranked About this edition

Flagship ranking · Q4 2026 edition

This page ranks software development companies in the United States, from government contractors to makers of specialist products. TrustList lists 301 of them, and 73 earned a rank number in the Q4 2026 edition. Among the ranked, five each cite ISO 27001 and ISO 9001, three cite SOC 2, three are Microsoft partners and three hold a professional accreditation. Fifty-eight state a founding date, led by the 2000s (25), 1990s (15) and 2010s (14). Eleven give the United States of America as their base, with Los Angeles and Houston at three each.

The order comes from the evidence TrustList held on 5 October 2026: client reviews, vetting, awards and facts each company states on its own website, which we read and dated. Nobody pays to be placed. A listing with nothing checkable is shown but not ranked, and positions stay fixed until the January 2027 edition. A company can move up by adding client reviews or verified facts to its free profile.

By TrustList Editorial

All software development companies 235 ranked SMEs 226 ranked

The SME ranking on this page lists 299 small and medium-sized firms, and 71 of them earned a rank number. Two businesses known to be large are left out. The SME order does not reward age, so newer firms compete on evidence alone. See the SME ranking

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The top three

1
Honovee, LLC
Best for: Government agencies
Technology services contractor serving federal, state and local government agencies; a small business headquartered in the Baltimore area.
- Baltimore Metropolitan Area, USA
- Founded 2014
- ISO 9001, ISO 27001, professional accreditation
View profile
2
AGILE Infoways Pvt. Ltd
- United States of America
- Founded 2006
- ISO 9001, SOC 2
- Team of 250+
View profile
3
Itransition Group
- United States of America
- Founded 1998
- Microsoft partner, Salesforce partner
View profile

Honovee, LLC
Best for: Government agencies
Agile · Government · Engineering
Small US technology contractor providing systems engineering, software, data analytics and cybersecurity to government agencies
Write a review
Why #1: Based in Baltimore Metropolitan Area, USA · Founded 2014 · ISO 9001, ISO 27001, professional accreditation, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
AGILE Infoways Pvt. Ltd
Mobile App Development · Web Development · Web Design
AGILE Infoways Pvt. Ltd is an offshore software development company founded in 2006. It has offices in India, the USA and Canada, and says its team now exceeds 250 people.
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Why #2: Office in United States of America · Founded 2006 · ISO 9001, SOC 2 · Team of 250+, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Itransition Group
Mobile App Development · Web Development · Web Design
Itransition Group is a software engineering company that has operated since 1998.
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Why #3: Address in United States of America · Founded 1998 · Microsoft partner, Salesforce partner, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Computools LLC
Custom Software Development · Web Development · Web Design · Also in Zaporizhzhia, Ukraine and Kyiv
Computools LLC is a software development and IT consulting company that has operated since 2013.
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Why #4: Address in United States of America · Founded 2013 · ISO 9001, ISO 27001 · Team of 250+, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
EffectiveSoft
Mobile App Development · Web Development · Web Design
EffectiveSoft is a product engineering company, founded in 2001, that develops custom software and applies AI to it.
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Why #5: Address in United States of America · Founded 2001 · ISO 27001 · Team of 250+, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Velvetech LLC
Mobile App Development · Web Development · iOS App
Software development company with Chicago and Miami offices building custom software for mid-size and enterprise clients
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Why #6: Based in Chicago, Illinois, with a second office in Miami · In business 20+ years · Team of 250+ · Client numbers stated on its own website, as stated on its own website, read 6 Oct 2026
Not yet on record: client reviews, vetting.
D R Systems Inc.
Best for: Forestry organisations
D R Systems Inc. develops Phoenix Connect, a cloud platform that forestry organisations use to plan and track work in the woods and in the office.
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Why #7: Based in Nanaimo, British Columbia, with a second office in Seattle, Washington · Founded 1983 · ISO 27001, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.
CYBRA Corporation
Best for: Warehouse and supply chain operations
IoT · Medical · Retail
CYBRA Corporation develops software for printing barcode labels and forms and for tracking goods and equipment with RFID.
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Why #8 (shared): Based in Yonkers, New York, USA · In business 35+ years · Client numbers stated on its own website, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.
BS
Boyle Software Inc.
Boyle Software Inc. is a design and development firm that has built websites, mobile apps and larger applications for around 35 years.
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Why #8 (shared): Based in New York, United States · In business 35+ years · SOC 2, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.
Coherent Solutions
Mobile App Development · Web Development · Web Design
Coherent Solutions is a software product development and consulting company that serves large enterprises and startups around the world.
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Why #10: Based in North America headquarters in Minneapolis, Minnesota · Founded 1995 · AWS partner, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
NeoSOFT Technologies
Mobile App Development · ERP Software Development · Web Development · Also in Indore, India and Mumbai
NeoSOFT Technologies is an IT consulting and software development company headquartered in Mumbai, India.
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Why #11: Office in United States of America · Founded 1996 · professional accreditation, as stated on its own website, read 6 Oct 2026
Not yet on record: client reviews, vetting.
CoreSys Consulting
Best for: US government agencies
Information Technology · Cloud · Also in Lincoln
CoreSys Consulting is a Veteran-Owned Small Business that delivers IT projects, chiefly for US government agencies.
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Why #12: Office in United States of America · Founded 1998 · ISO 9001, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.
DB
Daring Bit Assembly, Inc.
Android · JavaScript · Goals
Daring Bit Assembly, Inc., known as DBA, is a custom software development company in Birmingham, Alabama.
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Why #13: Based in Birmingham, Alabama, United States · In business 20+ years · SOC 2, as stated on its own website, read 29 Sept 2026
Not yet on record: client reviews, vetting.
Saffron Tech Pvt Ltd
Mobile App Development · Custom Software Development · Web Development
Saffron Tech is a software development company that has operated since 2008.
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Why #14: Address in United States of America · Founded 2008 · Microsoft partner · Project numbers stated on its own website, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
AI Software LLC
Mobile App Development · Web Development · Web Design
AI Software LLC is a software development and IT staff augmentation firm.
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Why #15 (shared): Based in Troy, Michigan · Founded 2009 · Microsoft partner, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
OpenSource Technologies Inc
Mobile App Development · Web Development · Web Design
OpenSource Technologies Inc, also called OST, builds and maintains custom software.
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Why #15 (shared): Address in United States of America · Founded 2009 · AWS partner, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Eudaimonia
Web Services · Medical · Video
Eudaimonia, known as Euda, is a software consultancy that builds bespoke software for growing companies. It says it has worked for more than 17 years on digital products.
Write a review
Why #15 (shared): Address in United States of America · In business 17+ years · ISO 9001, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
JetRuby Agency 2010
Mobile App Development · Web Development · E-Commerce Development
JetRuby Agency 2010 is a software development agency that works mainly with Ruby on Rails.
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Why #18: Address in United States of America · Founded 2010 · Client numbers stated on its own website, as stated on its own website, read 6 Oct 2026
Not yet on record: client reviews, vetting.
Essential Software Inc.
Creative · Partners
Essential Software Inc. (ESI) is an information technology firm serving life sciences and biohealth organisations.
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Why #19: Based in Washington, D.C. area, USA · In business 15+ years · AWS partner, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
ActiveLogic Labs
Mobile App Development · Web Development · Web Design
Kansas City software development firm building web, mobile, AI and data systems with senior engineers based in the United States
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Why #20: Based in Kansas City, USA · Founded 2014 · Team of 30+ · Project numbers stated on its own website, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Antech Sytems
Best for: Navy and government clients
Government · Learning
Antech Sytems is a custom software developer headquartered in Chesapeake, Virginia, trading as Antech Systems.
Write a review
Why #21: Based in Chesapeake, Virginia, with offices in Washington DC, Maryland and Pennsylvania · Founded 1990 · Team of 180+, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.
Quoin Inc.
Mobile App Development · Web Development · iOS App
Boston-area software consultancy building web, mobile and enterprise applications for clients from startups to large enterprises
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Why #22: Based in Boston, Massachusetts, USA · Founded 1994 · Team of 50+, as stated on its own website, read 6 Oct 2026
Not yet on record: client reviews, vetting.
Mercury Development
Mobile App Development · Web Development · Web Design
Mercury Development is a custom software company headquartered in Aventura, Florida. It was founded in 1999 and began with mobile apps for iOS, OS X, Android and Windows.
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Why #23: Based in Aventura, Florida · Founded 1999 · Team of 200+, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
NashTech Limited
Web Development · Web Design · iOS App · Also in United Kingdom
NashTech Limited is a technology consultancy that delivers software development, cloud services, managed services and digital transformation.
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Why #24: Office in United States of America · Founded 2000 · Team of 2,000+, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.

The top ten at a glance

As each business states it on its own website, read by TrustList for this edition.

#	Business	Based in	Since	Accreditations	Best for
1	Honovee, LLC	Baltimore Metropolitan Area, USA	2014	ISO 9001, ISO 27001, professional accreditation	Government agencies
2	AGILE Infoways Pvt. Ltd	United States of America	2006	ISO 9001, SOC 2
3	Itransition Group	United States of America	1998	Microsoft partner, Salesforce partner
4	Computools LLC	United States of America	2013	ISO 9001, ISO 27001
5	EffectiveSoft	United States of America	2001	ISO 27001
6	Velvetech LLC	Chicago, Illinois, with a second office in Miami	20+ yrs	None stated
7	D R Systems Inc.	Nanaimo, British Columbia, with a second office in Seattle, Washington	1983	ISO 27001	Forestry organisations
=8	CYBRA Corporation	Yonkers, New York, USA	35+ yrs	None stated	Warehouse and supply chain operations
=8	Boyle Software Inc.	New York, United States	35+ yrs	SOC 2
10	Coherent Solutions	North America headquarters in Minneapolis, Minnesota	1995	AWS partner

How to choose software development companies

1. Decide custom build or product
Some firms write bespoke software, others sell a product and customise it. Ask which you are buying, what the licence covers and what you can change without the supplier.
2. Get code ownership in writing
For custom work, ask who owns the source code and documentation on delivery, and whether you receive a copy of the repository. Check any third-party components for licence terms.
3. Match security evidence to your needs
Ask for SOC 2 or ISO 27001 reports if you handle sensitive data. Government work may carry its own requirements, such as contractor registration and vetted staff, so ask what applies.
4. Understand the delivery method
Ask how work is planned, how often you see working software and how testing is done. Insist on a named lead and regular demonstrations, not only status reports.
5. Price the long term
Ask what support, hosting and upgrades cost after launch, how long the supplier supports each version and how you would move to another provider if you needed to.
6. Test sector experience
Ask for finished projects in your field, such as healthcare, logistics or public sector, and speak with a past client. Domain knowledge shortens a build and cuts rework.

For vendors

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The order is earned on evidence: client reviews, vetting, awards and the facts a business states on its own website, which we read and date. Nobody can pay to move up. Add reviews or verified facts to your free profile to move up at the next edition; there are two ways to stand out now, and each one says what it is.

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How is this ranking worked out?

The order comes from what each firm publishes and what has been verified about it, and never from payment:

Profile completeness: the details a buyer needs to judge a firm — what it does, who it serves, how it prices, who it has worked for
Earned trust: verification, awards and the other checks a firm has actually passed
Client reviews, where they exist: the rating is smoothed, so one five-star review cannot outrank a firm with a hundred good ones, and volume counts with diminishing returns

Client reviews are still rare across this catalogue, so on most lists today the order is set by the first two. A firm near the top is the best-documented and best-verified one we hold, which is not the same claim as the best one to hire. Use the list to build a shortlist, then check the firms yourself.

Sponsored listings are labelled and shown apart from this list. How rankings work

Only firms whose profile names the USA are counted here, so a firm that lists a town but no country is not yet included.

Where else can I look?

The same list for India: software development companies in India (42).

Every category in the USA: the USA country page.

Top B2B companies in the USA38 categories ranked, 4,110 companies

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