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Top Software Development Companies in the USA

801 IT service providers ranked by rating, review volume and listing quality.

Software development here means building software to order — a product, an internal system, or a replacement for something that has outgrown a spreadsheet. It spans firms that take a specification and deliver against it, and teams that work discovery-first and expect the specification to change.

The distinction worth establishing early is who owns the decisions. A supplier that builds exactly what was asked will deliver exactly what was asked, including the parts that were wrong. A partner that pushes back costs more in meetings and less in rework. Neither is better in the abstract; they suit different buyers and different projects, and the mismatch is where these engagements go wrong.

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Between them, the 600 best-ranked of these 801 IT service providers cover web development (448), web design (377), mobile app development (270) and android (262). 577 of them have written a profile you can read before you get in touch.

TrustList ranks more than 800 software development companies in the USA, ordered on client reviews and profile quality, never on payment. At the top right now: Blue Water, Bixlabs and Neuralab Inc..

What to check before you shortlist a software development company

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

Filter by fitbudget, engagement, size and more

Intapp
E-Commerce Development · eCommerce · Cloud
Intapp provides the first and only professional and financial services industry cloud to help firms shift to a modernization strategy and gain a growth edge in today’s competitive…
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Orca Solutions
Mobile App Development · Web Development · iOS App
In today’s business environment, companies are facing increasing pressure to better control the ICT running costs, while also improving the level of service.
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ModLogix
Mobile App Development · Web Development · UI/UX Design
Welcome to ModLogix! We move legacy software solutions to secure, stable and scalable platforms saving their business value.
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Booksy
Mobile App Development · Web Design · UI/UX Design
Booksy is the leading beauty marketplace for finding, scheduling and managing appointments (with 3 million online bookings per month worldwide), anchored by a SaaS app for business…
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Clouds On Mars
Artificial Intelligence - AI · E-Commerce Development · IT Solution
We are a startup founded by a group of experts who combine IT and business knowledge. We have many years of experience in Business Intelligence and Data Warehousing projects.
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Acumen Consulting
ERP Software Development · Web Development · Web Design
We provide a wide array of technology services to the St. Louis region and beyond.
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LULU Software
Web Development · Web Design · UI/UX Design
LULU SOFTWARE creates simple and powerful software for your computer.
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Zeta Global
Social Media Marketing · Web Development · Web Design
Zeta Global is a data-powered marketing technology company that combines the industry’s third-largest data set (2.4B+ identities) with results-driven AI to unlock consumer intent,…
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Smart IT
Mobile App Development · Search Engine Optimization · Web Development
Smart IT is a custom software and web development company headquartered in Minsk and San Francisco.
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Neklo LLC
Mobile App Development · Search Engine Optimization · Web Development
NEKLO LLC was founded in 2009. For eight years we create complex and interesting projects. Our offices are established in Belarus, Russia, the Czech Republic, Poland, and USA.
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Forte Group’s
Custom Software Development · Web Development · E-Commerce Development
Forte Group is a full-spectrum software solution and managed services resource for businesses seeking exceptional engineering talent and extraordinary software.
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MWDN Ltd.
Mobile App Development · Web Development · Web Design
Our mission at MWDN is to translate your ideas into seamless and efficient software products by employing advanced technologies and cost-effective approaches.
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SpurIT eCommerce Solutions
Social Media Marketing · Search Engine Optimization · Web Development
SpurIT is a software development and marketing company based in Minsk, Belarus and the representative office in Palatine, United States.
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EffectiveSoft Corporation
Mobile App Development · Custom Software Development · ERP Software Development
EffectiveSoft is an international software development vendor with 20 years of professional experience.
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Altoros
Custom Software Development · Web Development · Machine Learning
Altoros is a 300+ people strong consultancy that helps Global 2000 organizations with a methodology, training, technology building blocks, and end-to-end solution development.
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Fourteen33
Artificial Intelligence - AI · Mobile App Development · Web Development
We are a Cloud, AI, and Automation services company that was born from within Google Cloud.
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Amasty
Web Development · E-Commerce Development · IT Services
To develop high-quality extensions for Magento that strongly benefit the business of our customers and significantly improve the shopping experience of the end-users.
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Codifi
Web Development · IT Services · Frontend
The Codifi team believes there is a strong market need for accessible high-quality Magento Development and Support resources.
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Sapiens
Web Development · Web Design · UI/UX Design
Sapiens International Corporation empowers insurers to succeed in an evolving industry.
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Velmie
Web Development · iOS App · Mobile Platforms
Velmie is a financial technology provider that has been on the market for more than 8 years delivering back end, mobile and web solutions to enterprise financial institutions and…
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ScienceSoft
Software Testing · CRM Development · Quality Assurance
Founded in 1989, ScienceSoft is a US-headquartered provider of IT consulting services and custom software development.
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Ascendix Technologies
Web Development · Web Design · UI/UX Design
Ascendix Technologies is a CRM consulting and custom software development company from Dallas, Texas with offshore development offices in Ukraine.
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SolbegSoft
Software Testing · Quality Assurance · Frontend
SolbegSoft is a custom software development, outsourcing, and consulting company headquartered in New York, the USA with development facilities in Eastern Europe (Minsk, Belarus).
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DEVXED
Web Development · Web Design · IT Services
DEVXED is a production company specializing in the development of instruments for online trading, such as inventory repricing, shipping automation and warehouse optimization for…
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How many software development companies are there in the USA?

801 companies on TrustList offer software development and are based in the USA. That makes the USA the largest software development market we rank.

How is this ranking worked out?

Each firm's position comes from its client reviews and its profile, blended into one score:

Rating, smoothed so a single five-star review cannot outrank a firm with hundreds of good ones
Review volume, with diminishing returns
Profile completeness: the details a buyer needs to judge the firm
Earned trust: verification and awards, as a small lift

No firm can pay for a position. Sponsored listings are labelled and shown apart from this list. How rankings work

What else do firms in the USA offer?

We also rank web development (2,396), web design (1,857) and mobile app development (1,308) in the USA.

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Everything here links back to the same verified catalogue. Pick your next stop.

Top Software Development Companies in the USA

Intapp

Orca Solutions

ModLogix

Booksy

Clouds On Mars

Acumen Consulting

LULU Software

Zeta Global

Smart IT

Neklo LLC

Forte Group’s

MWDN Ltd.

SpurIT eCommerce Solutions

EffectiveSoft Corporation

Altoros

Fourteen33

Amasty

Codifi

Sapiens

Velmie

ScienceSoft

Ascendix Technologies

SolbegSoft

DEVXED

Want to see your company here?

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Sponsor the Software Development ranking

How many software development companies are there in the USA?

How is this ranking worked out?

What else do firms in the USA offer?

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Other services in the USA

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