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Top Software Development Companies for .NET

21 of 67 software development companies ranked on evidence in the Q4 2026 edition.

Between them, the 67 software development companies on this page cover web development (33), android (27), mobile app development (26) and eCommerce (25). They also list work in Colorado, Nice, Ontario and Europe. 65 of them have written a profile you can read before you get in touch.

TrustList ranking

Q4 2026 edition

21 of 67 software development companies ranked on evidence held on 5 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

All software development companies 21 ranked SMEs 21 ranked

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E/Step Software Inc.
Manufacturing · DataBase · ERP
E/Step Software Inc. develops the Finished Goods Series, known as FGS, a package for demand forecasting and inventory planning.
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Why #1: Founded 1983 — as stated on its own website, read 29 Sept 2026
Not yet on record: client reviews, vetting.
Counterpart
Mobile App Development · Web Development · iOS App · Also in United States of America
Indianapolis custom software firm building web, mobile, cloud and AI systems for organisations that outgrow off-the-shelf tools
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Why #2: Founded 1993 — as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.
Cactusoft LLC
eCommerce · SQL · DataBase · Also in Winchester and Wilmington
Cactusoft LLC has been building data-driven web applications since 1998.
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Why #3: Founded 1998 — as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.
Framework Solutions LLC
Microsoft Dynamics 365 · SQL Server · Medical · Also in California and Fleet
Southern California software firm specialising in bio-repository, insurance and e-commerce systems and Dynamics integration
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Why #4: Founded 1999 — as stated on its own website, read 29 Sept 2026
Not yet on record: client reviews, vetting.
KPV
Mobile App Development · Web Development · iOS App · Also in Lithuania
KPV is a Vilnius company, registered as UAB Kompiuterinis procesų valdymas, that designs and manufactures embedded electronic systems.
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Why #5 (shared): Founded 2002 — as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.
ITegrity Web Technologies
Web Development · Web Design · Software Development
ITegrity Web Technologies is a web design and software development company in San Diego, California.
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Why #5 (shared): Founded 2002 — as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Efficion Consulting
SQL · SEO · WordPress · Also in Missouri
Efficion Consulting develops and connects web applications for organisations that want their websites to work harder. The firm is based in St.
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Why #7: Founded 2003 — as stated on its own website, read 29 Sept 2026
Not yet on record: client reviews, vetting.
evozon
Mobile App Development · Web Development · Web Design · Also in Romania
evozon is a software development company that started in Cluj-Napoca, Romania, in 2005.
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Why #8: Founded 2005 — as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.
Avarice
Information Technology · SQL Server · SQL
Avarice is a company in Torino that combines IT consulting with logistics expertise to help clients cut operating costs and work more efficiently.
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Why #9: Founded 2006 — as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.
Doublezero Solutions Ltd
Mobile App Development · Advertising & Marketing · Web Development · Also in United Kingdom
Doublezero Solutions Ltd is a Manchester software house that builds custom systems when packaged software does not fit.
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Why #10: Founded 2007 — as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.
Holool
Advertising & Marketing · Web Development · Information Technology
Holool is a software and web company that started in Egypt in 2011. It began with website design and has since added digital marketing and business software.
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Why #11: Founded 2011 — as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Inkodus, UAB
Supply Chain, Logistics, and Transport · eCommerce · Medical · Also in Lithuania
Inkodus, UAB is a software development company in Lithuania that has operated since 2012.
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Why #12: Founded 2012 — as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Archybility Software Development
Financial Services · Microsoft .NET · Medical
Belgrade software studio offering nearshore development, system integration and developer training for startups and enterprises
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Why #13: Founded 2015 — as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.
DevSymmetrix
Supply Chain, Logistics, and Transport · Mobile App Development · Web Development · Also in Ukraine
DevSymmetrix is a software services company whose main speciality is custom-built CRM and ERP systems.
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Why #14 (shared): Founded 2016 — as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.
Filament AI
Web Development · Information Technology · Web Design · Also in Wales and Ontario
Filament AI is a software business that builds data-driven business applications, with a strong focus on private equity.
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Why #14 (shared): Founded 2016 — as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.
ConnectPoint
Energy & Natural Resources · Mobile App Development · Web Development · Also in Poland
ConnectPoint helps manufacturing firms and utilities modernise their operations with software, data and industrial connectivity.
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Why #16 (shared): ISO 9001, ISO 27001 — as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.
j-labs software specialists
Supply Chain, Logistics, and Transport · Energy & Natural Resources · Gps, Navigation & Gis · Also in Poland
j-labs software specialists is a software house in Poland that places engineers on client projects, either by joining existing teams or by taking on a whole project.
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Why #16 (shared): ISO 9001, ISO 27001 — as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.
iFour Technolab Private Limited
Supply Chain, Logistics, and Transport · Financial Services · CRM Development · Also in Australia
iFour Technolab Private Limited is a software development company with its head office in the United States and further offices in the Netherlands, Australia and Ahmedabad, India.
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Why #18 (shared): Microsoft partner — as stated on its own website, read 29 Sept 2026
Not yet on record: client reviews, vetting.
Cybermax Solutions
Industrial
Cybermax Solutions is a custom software and AI consulting company that builds chatbots, knowledge assistants and automation tools, and fits them into clients' existing systems.
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Why #18 (shared): nothing checkable yet — as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.
ERPians
Microsoft Dynamics 365 · CRM · Hybrid · Also in Cairo
ERPians is an Egyptian consultancy focused on Microsoft Dynamics 365 and CRM. It describes itself as the only Microsoft partner in Egypt specialised in this product.
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Why #18 (shared): Microsoft partner — as stated on its own website, read 29 Sept 2026
Not yet on record: client reviews, vetting.
Infinite Solutions
Microsoft Dynamics 365 · Cloud · Outsourcing · Also in London
Microsoft Dynamics 365 partner offering ERP implementation, development and IT outsourcing for organisations across Europe and beyond
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Why #18 (shared): Microsoft partner — as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Also listed, not yet ranked. We hold nothing checkable on these yet that ranks them here: no client review, vetting, award, expert review, or fact stated on their own website (and on a place ranking, where they are based). They follow in order of their TrustList Score. How TrustList ranks · Get vetted, free
Levi9 Technology Services
Supply Chain, Logistics, and Transport · Mobile App Development · Web Development · Also in Europe
Technology services company building and scaling digital products, platforms and cloud systems with European delivery centres
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On record: Team of 1,000+ — as stated on its own website, read 28 Sept 2026
Acionyx
Acionyx provides software development and consulting to companies whose business depends on technology.
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Acumen Cognitive Engineering
iOS App · Software Development · React Native
Acumen Cognitive Engineering, which trades as Acumen, builds custom software and puts AI to work inside everyday operations.
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Top Software Development Companies for .NET

E/Step Software Inc.

Counterpart

Cactusoft LLC

Framework Solutions LLC

KPV

ITegrity Web Technologies

Efficion Consulting

evozon

Avarice

Doublezero Solutions Ltd

Holool

Inkodus, UAB

Archybility Software Development

DevSymmetrix

Filament AI

ConnectPoint

j-labs software specialists

iFour Technolab Private Limited

Cybermax Solutions

ERPians

Infinite Solutions

Levi9 Technology Services

Acionyx

Acumen Cognitive Engineering

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