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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

Smaato, Inc.
iOS App · UI/UX Design · E-Commerce Development
We connect advertisers to app publishers around the world. Whether you are trying to create the perfect advertising campaign or optimize your app’s revenues, we will help you reach…
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Mass Relevance
Web Development · UI/UX Design · Web Design
Khoros, formerly Spredfast + Lithium, is the leading customer engagement platform built to turn siloed knowledge into enterprise value, and customers into contributors.
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Mirum Agency
Web Development · Web Design · IT Services
Mirum is a borderless agency of over 2,500 digital savants, storytellers, makers and relentlessly curious minds who are united by an uncommon drive to make what’s next.
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Sophos
Web Development · iOS App · UI/UX Design
Cybersecurity Evolved. As a worldwide leader in next-generation cybersecurity, Sophos protects nearly 400,000 organizations of all sizes in more than 150 countries from today’s…
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Hitachi Data Systems
Web Development · iOS App · UI/UX Design
Hitachi Vantara, a wholly-owned subsidiary of Hitachi, Ltd., helps data-driven leaders use the value in their data to innovate intelligently and reach outcomes that matter for…
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CALIENT Technologies Inc.
Web Development · iOS App · UI/UX Design
CALIENT Technologies is the global leader in pure photonic Optical Circuit Switching with systems that enable dynamic optical layer optimization in next-generation data centers and…
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Trigent Software Inc.
Mobile App Development · Web Development · iOS App
Trigent is an early pioneer in IT outsourcing and offshore software development business.
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Mindtree
Web Development · iOS App · UI/UX Design
Mindtree delivers digital transformation and technology services from ideation to execution, enabling Global 2000 clients to outperform the competition.
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TestingXperts
Web Development · iOS App · UI/UX Design
TestingXperts is a NextGen Specialist QA & Software Testing, and an Independent Software Testing division of Damco Group, which is a leading IT Solutions and Services company…
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CollabNet VersionOne
Web Development · iOS App · UI/UX Design
CollabNet VersionOne is the Enterprise Value Stream Management leader that accelerates high-value software development and delivery while improving quality and reducing risk.
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Viana Labs LLP
Mobile App Development · Web Development · iOS App
Viana labs is a certified AWS select partner offering end-to-end cloud services across the globe.
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Netsmartz
Mobile App Development · Web Development · iOS App
When it comes to IT solutions and services, Netsmartz is one of the best. Our existence started on September 29, 1999, with 4 creative and dedicated individuals.
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Moxtra Inc.
Mobile App Development · Web Development · iOS App
Our Vision: Moxtra began its journey with a fundamental quest: reimagining business collaboration in the age of mobility.
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Evergent Technologies, Inc.
Mobile App Development · Web Development · iOS App
In a world where user relationships can determine your success or failure, Evergent has your back.
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Vivensas InfoTech Private Limited
Custom Software Development · Web Development · iOS App
Vivensas Infotech Private Limited is a new age IT Solutions company that offers firm-path-breaking solutions to enterprises across the globe.
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Kapture CRM
ERP Software Development · Web Development · iOS App
Kapture is a cloud-based business automation CRM with a Mobile-first approach that helps you manage sales and customer service on a single platform.
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Zoom Video Communications
Web Development · iOS App · UI/UX Design
Meet Happy! Zoom helps businesses and organizations bring their teams together in a frictionless environment to get more done.
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Polycom
Web Development · iOS App · UI/UX Design
Plantronics and Polycom are now Poly. Our comprehensive set of smart endpoints for unified collaboration span personal and group communication systems, with a full range of…
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ScrumStart
Mobile App Development · Web Development · iOS App
ScrumStart, a venture of SRKay Consulting Group, is a new age advisory and technology services company that uses its innovative ‘ScrumStart Virtual Captive’ delivery model for…
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Ciber Global
Web Development · iOS App · UI/UX Design
Ciber is a consulting, outsourcing and business solutions integration provider with offices across North America and India.
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McAfee
Web Development · iOS App · UI/UX Design
McAfee is a global organization with a 30-year history and a brand known the world over for innovation, collaboration, and trust.
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Wibmo Inc.
iOS App · UI/UX Design · E-Commerce Development
Wibmo is a premium payment security and mobile payments company.
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WalkingTree Technologies
Web Development · iOS App · UI/UX Design
Walking Tree Technologies is a product development enterprise with a prolific backend engineering team that serves customers across the globe.
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Forescout Technologies Inc.
Web Development · iOS App · Web Design
Forescout Technologies, Inc. provides security at first sight.
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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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Every other way we rank it service providers — by what they do and where they are.

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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

Smaato, Inc.

Mass Relevance

Mirum Agency

Sophos

Hitachi Data Systems

CALIENT Technologies Inc.

Trigent Software Inc.

Mindtree

TestingXperts

CollabNet VersionOne

Viana Labs LLP

Netsmartz

Moxtra Inc.

Evergent Technologies, Inc.

Vivensas InfoTech Private Limited

Kapture CRM

Zoom Video Communications

Polycom

ScrumStart

Ciber Global

McAfee

Wibmo Inc.

WalkingTree Technologies

Forescout Technologies Inc.