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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

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Adaptive Computing
IT Services · Big Data · Data Science
Adaptive Computing has provided advanced applications and tools to the world’s largest High-Performance Computing installations for over a decade.
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Speridian Technologies
E-Commerce Development · CRM Development · eCommerce
Speridian is a CMMI Level 5 global information technology solutions provider with an excellent track record for designing, developing and deploying enterprise-wide,…
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Kyvos Insights
IT Services · IT Outsourcing · Big Data
At Kyvos, we believe that perseverance leads to perfection, and challenges define success. Our journey with data started very early, even before the word ‘big data’ was coined.
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Pegasus Knowledge Solutions
IT Services · Data Science · Data Analytics
Founded in 1997, Pegasus Knowledge Solutions, Inc. (PKSI) is an independent, advanced analytics software and services organization, that partners with the industry-leading…
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Noodle.ai
Artificial Intelligence - AI · IT Services · Data Science
Noodle.ai is your source for Enterprise AI®. We’re on a mission to create a world without waste. We believe in AI for radical efficiency and extraordinary good.
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Workaya
Artificial Intelligence - AI · Web Development · E-Commerce Development
Imagine an organization, where people can easily summon a human-like assistant to automate their time consuming recurring work. That's Workaya for you!
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SLK
Artificial Intelligence - AI · IT Services · Software Testing
At SLK Software, we recognize the speed at which the world is transforming, the impact it creates and the opportunity it offers our customers.
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Centurysoft Private Limited
IT Services · IT Outsourcing · Big Data
When your customer sees your brand, they must see trust. With trust comes a superior customer experience and engagement that ensures brand loyalty and advocacy.
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HighRadius
Mobile App Development · Web Development · E-Commerce Development
HighRadius is a Fintech enterprise Software-as-a-Service (SaaS) company that leverages Artificial Intelligence-based Autonomous Systems to help companies automate Accounts…
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Kronos Incorporated
Mobile App Development · iOS App · IT Services
Guided by decades of experience and innovation, Kronos® offers the industry’s most powerful suite of tools and services to manage and engage your entire workforce from pre-hire to…
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Pactera
Mobile App Development · E-Commerce Development · iOS App
Leveraging four core capabilities – Engineering, Digitalization, Globalization, and Emerging Technologies – we help clients achieve new levels of performance while adding brand new…
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Deskera
IT Services · HRMS software · eCommerce
We believe in changing the way small and medium businesses from various industries operate.
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Tavant
Artificial Intelligence - AI · IT Services · IT Outsourcing
Tavant is a digital products and solutions company that provides impactful results to its customers across a wide range of industries such as Consumer Lending, Aftermarket, Media &…
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Zenoti
Mobile App Development · E-Commerce Development · iOS App
Our founders experienced first-hand the difficulty in running a chain of spa, salon and fitness centers.
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Orion Business Innovation
ERP Software Development · IT Services · Big Data
Orion Business Innovation is a premier, award-winning, global business and technology services firm that provides high-touch, high-quality digital transformation, automation, and…
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QlikTech
Artificial Intelligence - AI · IT Services · Software Testing
Qlik® delivers intuitive platform solutions for self-service data visualization, guided analytics applications, embedded analytics and reporting to approximately 45,000 customers…
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Semarchy
E-Commerce Development · IT Services · Software Testing
Semarchy is making MDM exciting again. Our founders have a long history of delivering innovation in Data Integration.
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NICE Ltd
iOS App · IT Services · Big Data
NICE (NASDAQ: NICE) is the worldwide leader of software solutions that deliver strategic insights by capturing and analyzing mass quantities of structured and unstructured data in…
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Sonatype
E-Commerce Development · IT Services · Network Security
The Sonatype journey started 10 years ago, just as the concept of “open source” software development was gaining steam.
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Scality
AR & VR · Web Development · E-Commerce Development
At Scality, we give freedom and control to people to create value with data.
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Incedo Inc.
IT Services · CRM Development · Data Science
Incedo is a Bay Area headquartered, consulting, analytics and technology services firm.
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TroonDx
IT Services · Software Testing · Big Data
TroonDx (a Hyperledger General Member) is a Blockchain-based SaaS platform that offers micro-solutions that can be integrated with an existing system to reap the benefits of…
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IP Infusion
IT Services · Software Testing · Data Science
IP Infusion, the leader in disaggregated networking solutions, delivers the best network OS for white box and network virtualization.
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Kaseya
IT Services · Automation Engineer · SaaS
At Kaseya we are a customer-first team, working to bring solutions that make the lives of IT leaders around the globe easier and more predictable.
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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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Top Software Development Companies in the USA

Adaptive Computing

Speridian Technologies

Kyvos Insights

Pegasus Knowledge Solutions

Noodle.ai

Workaya

SLK

Centurysoft Private Limited

HighRadius

Kronos Incorporated

Pactera

Deskera

Tavant

Zenoti

Orion Business Innovation

QlikTech

Semarchy

NICE Ltd

Sonatype

Scality

Incedo Inc.

TroonDx

IP Infusion

Kaseya

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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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