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Top IT Service Providers for .NET in the USA

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

Between them, the 600 best-ranked of these 713 IT service providers cover web development (568), android (472), iOS app (463) and PHP (457). They also list work in New York, India and United Kingdom. 600 of them have written a profile you can read before you get in touch.

We list more than 700 IT service providers in the USA listed for .NET development. The order comes from what each firm publishes and what has been verified about it, never from payment — at the top right now: SingleMind, INAP and UST Global.

Before you shortlist, check

Work on current .NET versions, not only legacy .NET Framework
A plan for moving any old .NET Framework code forward
Automated tests and deployment you can run yourself
That you own the code and the build pipeline

Filter by fitbudget, engagement, size and more

SalesboxAI
Custom Software Development · iOS App · React Native
SalesboxAI is an AI-powered platform that delivers Sales Traction for your Business.
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TRUGlobal
Mobile App Development · Web Development · iOS App
With its global headquarters in California; TRUGlobal is a top IT services firm servicing clients across Fortune 500 Companies to Startups.
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Maantic Inc.
Custom Software Development · ERP Software Development · iOS App
With global clients and worldwide operations, Maantic Inc. is a leading boutique systems integration company and consulting firm that specializes in the implementation of business…
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Pegasystems
Web Development · UI/UX Design · Web Design
Pega is the leader in cloud software for customer engagement and operational excellence.
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BayOne Solutions
Mobile App Development · ERP Software Development · Web Development
BayOne, an information technology outsourcing company specializes in Consulting services, Infrastructure & Application outsourcing, and Application solutions.
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ZB.IO
Custom Software Development · Web Development · iOS App
A global-scale service observability platform for production workloads with native service mesh support and an agentless approach.
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Asure Software
Web Development · UI/UX Design · Web Design
Asure (NASDAQ: ASUR) sees Human Capital Management (HCM) through the lens of entrepreneurs and executives with an owner’s mentality.
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Quest Software
Web Development · iOS App · UI/UX Design
We are more than just a name – we are on a quest to make your information technology work harder for you.
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Heroku
Web Development · UI/UX Design · Web Design
Heroku, a Salesforce company and an industry pioneer in platform as a service (PaaS), enables developers to build and run applications entirely in the cloud, without the need to…
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Demandbase
Social Media Marketing · Web Development · UI/UX Design
The biggest and fastest-growing companies in the world rely on Demandbase to drive their Account-Based Marketing strategies and maximize B2B marketing performance.
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Absolute Software
Web Development · iOS App · UI/UX Design
Absolute provides endpoint visibility and control to help self-healing endpoint security and always-connected IT asset management to protect devices, data, applications, and users…
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Neverfail
Web Development · iOS App · UI/UX Design
Neverfail enables IT to meet or exceed service level agreements (SLAs) by providing continuous availability and connectivity to applications, data, and infrastructure.
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Nlyte Software
Web Development · UI/UX Design · Web Design
Nlyte Software is the world's leading software company focused on planning, managing and optimizing data centers.
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Tintri
Web Development · iOS App · UI/UX Design
Tintri all-flash storage and software is specifically built for virtualized workloads.
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Rubrik, Inc.
Mobile App Development · Web Development · UI/UX Design
Rubrik delivers instant application availability for recovery, search, cloud, and development.
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Spotinst
Web Development · iOS App · UI/UX Design
Spotinst automates cloud workloads to improve performance, reduce complexity and lower compute infrastructure costs by 80%.
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Jasoren
Mobile App Development · Web Development · iOS App
Jasoren is the US software development company specializing in building applications for virtual and augmented reality, conversational interfaces, as well as for web and mobile…
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Antuit
Social Media Marketing · Web Development · iOS App
We are the leader in AI-powered Demand Forecasting and Shaping cloud solutions for Retail and Consumer Goods companies.
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Lexmark
Web Development · UI/UX Design · Web Design
Lexmark creates innovative imaging solutions and technologies that help customers in more than 170 countries worldwide print, secure and manage information with ease, efficiency…
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Matrix IFS
Web Development · UI/UX Design · Web Design
Matrix International Financial Services is a leading global specialist, providing business and technology solutions specifically for the complex needs of the global Financial…
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Ivanti
Web Development · iOS App · UI/UX Design
Ivanti unifies IT processes and security operations to better manage and secure the digital workplace.
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Avineon
Web Development · Web Design · IT Services
An SEI-CMMI Maturity Level 3 and ISO 9001:2015 registered firm founded in 1992, Avineon, Inc.
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Netcracker Technology
Web Development · iOS App · UI/UX Design
We are a forward-looking software company, offering mission-critical solutions to service providers around the globe.
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Webfume Technologies LLC
Mobile App Development · Web Development · iOS App
We are experienced digital marketers and web and app developers, working as a robust team to help your business to scale new heights through our customized digital marketing and…
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Marked Sponsored, and it never changes the order
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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 elsewhere: India (465) · UK (457) · Germany (222) · Canada (143).

Other specialisms in the USA: e-commerce (1,539) · Android app development (1,530) · iOS app development (1,452) · UI/UX design (1,355) · PHP development (946).

Every IT service provider in the USA: the full list.

Every category in the USA: the USA country page.

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More it service providers rankings

Every other way we rank it service providers — by what they do and where they are.

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Keep exploring

More on TrustList

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

Top IT Service Providers for .NET in the USA

SalesboxAI

TRUGlobal

Maantic Inc.

Pegasystems

BayOne Solutions

ZB.IO

Asure Software

Quest Software

Heroku

Demandbase

Absolute Software

Neverfail

Nlyte Software

Tintri

Rubrik, Inc.

Spotinst

Jasoren

Antuit

Lexmark

Matrix IFS

Ivanti

Avineon

Netcracker Technology

Webfume Technologies LLC