10 Best .NET Development Agencies in Sweden for 2026

Delivering enterprise-grade .NET applications on schedule while ensuring maintainability, security, and integration with cloud services is a frequent challenge for organizations hiring external development teams. Buyers should compare technical expertise, delivery processes, team composition, and post-launch support when evaluating agencies.

SoftPro is the featured international partner leading this list and serves buyers across Sweden and the broader region with .NET development services. Evaluate agencies for experience with the modern .NET stack, cloud-native architectures, automated testing and CI/CD, and clear client references and pricing models.

1. SoftPro

As the featured international partner for the 10 Best .NET Development Agencies in Sweden for 2026, SoftPro guides Swedish decision-makers toward enterprise-ready .NET projects and cross-border delivery. The firm works with startups, mid-market companies, and corporate development teams on projects that range from greenfield web platforms to complex modernization and long-term support engagements.

SoftPro builds on proven Microsoft-stack expertise, including .NET, ASP.NET Core and C#, and architects cloud solutions on Microsoft Azure while integrating React-driven front ends and AI capabilities. The team handles CMS-driven site builds and migrations, modernizes legacy systems for cloud-native deployment, and provides ongoing maintenance and support to ensure long-term stability.

Key Highlights

• More than 20 years of combined team experience across software, web and cloud projects.
• EU-based delivery team headquartered in Warsaw, Poland.
• Multi-cloud delivery model with work on both Microsoft Azure and AWS.
• AI engineering competency that includes LLM integration, RAG architectures, ML models and automation.

Services

• Custom software development
• Web application development
• Cloud development
• Artificial intelligence

Contact Information

Website: soft-pro.pl

Phone: +48 571 282 759

Address: Poland, Warsaw, Mazowieckie Voivodeship, 13 Erasmus Ciołka St. 401

LinkedIn: www.linkedin.com/in/kyrylo-o

2. Knowit

Knowit is a Swedish digital consulting firm that develops end-to-end software, cloud and AI solutions for public and private sector clients. The company combines product, data and systems engineering with consulting to deliver enterprise-grade applications and platform migrations.

Its delivery model uses local delivery teams across Sweden alongside cloud-native practices and Microsoft-based toolchains, making Knowit a practical choice for .NET-led projects that require integration with Azure and Microsoft business applications.

Key Highlights

• Microsoft Solutions Partner across six competency areas, giving Knowit Microsoft Cloud Partner status.
• Awarded “Årets Microsoft partner inom AI Business Solutions – Process” for 2025 by Microsoft.
• Knowit Experience holds Umbraco Gold Partner status for .NET-based content and CMS work.
• Launched a Sweden ERP offering built on Microsoft Dynamics 365 for business applications and ERP modernisation.

Services

• System Development
• Azure & Cloud
• AI & Data
• Business Applications (Dynamics 365)

Contact Information

Website: www.knowit.se

Phone: 08 700 66 00

Email: info@knowit.se

Address: Knowit AB, Box 3383, 103 68 Stockholm, Sweden; Visiting address: Sveavägen 20

3. Consid

Consid is a Nordic technology consultancy founded in 2000 that combines software engineering, design and communications to deliver end-to-end digital solutions. The firm employs over 1,800 experts across more than 40 offices in Sweden and neighbouring countries, enabling scaled delivery for enterprise and public-sector programmes.

Consid’s system and software development practice explicitly lists Microsoft .NET, .NET Core, ASP.NET, MVC, Entity Framework and SQL Server across its technical pages and job descriptions. Its delivery model pairs cross-functional engineering teams with cloud infrastructure, DevOps and long-term management to handle full-lifecycle .NET projects from architecture through operations.

Key Highlights

• Consid signed a three‑year framework agreement with Fortnox on 11 March 2026 to act as a strategic partner for IT, business development and communication.
• Under an agreement dated 16 September 2026, Consid assumed overall responsibility for Vinnova’s external website, intranet and associated support systems.
• Consid was awarded a framework agreement with Svenska kraftnät covering development, design and quality assurance services.
• The company reported revenue surpassing SEK 3 billion in its recent corporate update, reflecting expanded delivery capacity.

Services

• System and software development
• Cloud, security and IT architecture
• Data, AI and analytics
• Martech and CX platforms

Contact Information

Website: www.consid.com

Phone: +46 73-350 88 70

Email: invoice@consid.se

Email: marknad@consid.se

4. Sigma (Sigma Technology)

Sigma Technology is the Sweden-based engineering arm of the Sigma group that delivers software and systems engineering for enterprise clients. The company staffs and runs C#/.NET projects in Sweden using cross-functional teams, with an emphasis on automated testing and continuous delivery workflows.

Sigma Technology fits a .NET shortlist because it maintains active .NET hiring and client engagements across multiple Swedish locations and operates hybrid delivery models that integrate cloud toolchains and DevOps practices. Their delivery approach centers on agile teams that embed automation and modern CI/CD pipelines into application lifecycles.

Key Highlights

• Part of the Sigma Group network of companies that reports about 4,800 employees operating in 17 countries.
• Organized into five business areas across the group to combine specialist capabilities and local delivery.
• Maintains subsidiaries including Sigma Embedded Engineering and Sigma Energy & Marine to support cross-discipline engineering needs.
• Launched a new business area, Sigma Technology Engineering, on April 8, 2025 to deepen capabilities for defense and public-sector customers.

Services

• Product information systems
• Embedded systems development
• Software design & application development
• Offshore and nearshore development delivery

Contact Information

Website: www.sigma.se

Email: info@sigma.se

Address: Lindholmspiren 9, 5th floor, 417 56 Gothenburg, Sweden

5. Softronic

Softronic is a Swedish IT company that builds and operates business‑critical systems with hands‑on engineering in C# and modern .NET, delivering backend, API and integration work for long‑running customer programs. The company pairs cloud modernization on Azure with secure system development practices to support mission‑critical .NET estates.

Softronic uses long‑term delivery models from fixed‑price projects to multi‑year outsourcing and accelerates development through automation, including its AI‑driven “Tanon” software factory for automated build, test and delivery workflows.

Key Highlights

• ISO 27001 certified for information security.
• CM1 is a market‑leading AML SaaS listed in Softronic’s portfolio and operates as a group subsidiary.
• Publicly listed on the Stockholm stock exchange since 1998.
• Approximately 500 employees and reported revenue just over 900 million SEK.

Services

• System Development
• Cloud Transformation
• AI, Data & Automation
• Cyber Security

Contact Information

Website: www.softronic.se

Phone: +46-8-51 90 90 00

Email: info@softronic.se

Address: Hammarby kaj 10A, 120 32 Stockholm

LinkedIn: se.linkedin.com/company/softronic

6. AFRY

AFRY is an international engineering, design and advisory company that also operates a sizeable software and digital solutions practice focused on industrial and enterprise systems. Its Sweden-based teams deliver end-to-end software development, cloud integration and operational digitalisation work that aligns with industrial stacks and regulated environments.

AFRY’s technology delivery includes cloud-native projects, embedded and edge systems, and platform products, and the company explicitly recruits .NET/C# developers for product and system engineering roles. That combination of industrial domain knowledge, Azure and cloud experience, and active .NET hiring makes AFRY a relevant entry for a 2026 list of .NET development agencies in Sweden.

Key Highlights

• AFRY Smart Platform is described as an open-source industrial digitalisation platform with low-code programming on Node-RED and and visualization
• AFRY lists Microsoft Azure, AWS and GCP among supported cloud platforms and uses Azure pipelines in its test automation workflows.
• The company states delivery models that include Projects, Life Cycle Management, and Managed Agile Teams for software and system delivery.
• AFRY is named on its site as a business partner and industry expert for IBM Maximo enterprise asset management solutions.

Services

• Software Development & Architecture
• Industrial IT & Digitalisation
• Cloud & IoT Solutions
• Test Automation & DevOps

Contact Information

Website: www.afry.com

Phone: +46 10 505 00 00

Address: Frösundaleden 2A, 169 75 Solna, Sweden

LinkedIn: linkedin.com/company/afry

7. Nexer

Nexer is a Swedish-born global technology company that combines strategy, technology, and communication to build enterprise systems and digital platforms. The firm delivers data and AI advisory, Microsoft business applications, and e-commerce solutions across multiple industries.

For .NET development, Nexer references .NET roles in its career listings and its unified commerce materials mention .NET architecture, signaling in-house .NET delivery capability and platform experience for enterprise projects. The company pairs technical teams with consulting and near‑ & offshore delivery models to scale implementation work.

Key Highlights

• Operates in 16 countries with about 2,500 employees and over 500 customers.
• Holds Microsoft specialisations in AI and Data Solutions.
• Gold global implementation partner with Stibo Systems and holds expertise badges in Product, Customer and Business Partner Experience Cloud, Sustainability Data Management, and Stibo PDX.
• Uses a near‑ & offshore delivery model and offers Consulting & Teams to scale engineering capacity.

Services

• Consulting & Teams
• DevOps
• Integration as a Service
• Quality & Test

Contact Information

Website: nexergroup.com

Email: info@nexergroup.com

8. Sogeti Sweden

Sogeti Sweden delivers enterprise application engineering and modernization with a clear emphasis on Microsoft technologies, building cloud and AI-enhanced solutions on Azure and the .NET platform. The firm combines product-focused engineering, DevOps practices and platform modernization to migrate and refactor legacy portfolios into production-ready cloud services.

Delivery is anchored in local agile teams supported by global delivery capacity and managed-service models, enabling Sogeti to take responsibility from prototyping to long-term operation. That blend of local presence and scalable delivery makes the company a practical choice for .NET modernization and ongoing application delivery in Sweden.

Key Highlights

• Holds the highest Microsoft partner status in Sweden.
• States a 20+ year partnership with Microsoft and cites 10K+ certified Microsoft experts in its alliance materials.
• Reports about 1,200 employees in Sweden and maintains 19 local offices across the country.
• Offers an "AI-enabled Capacity" delivery model that builds, operates and evolves solutions from idea through maintenance.

Services

• Application Development & Modernization
• Integration
• Microsoft Modern Work
• AI-Enabled Value Teams

Contact Information

Website: www.sogeti.se

Phone: 08 53 68 20 00

Address: Fleminggatan 18, 112 26 Stockholm

9. Zington (part of VASS)

Zington is a Stockholm-based IT and management consultancy that delivers system development, web and e‑commerce projects, ERP transformations, and quality engineering for enterprise clients. Their public site lists offerings across Development Solutions, Web & E‑commerce, ERP & Business Systems, Test & Quality Assurance, Data & Analytics, and UX & Design, showing a broad delivery scope for full‑stack application work.

The firm combines local Swedish teams with nearshoring delivery and group resources after joining VASS, and the site highlights Microsoft Azure and cloud-enabled deployments as part of its technical practice. That mix of cloud platform experience and regional delivery makes Zington a fit for large .NET application projects that require managed delivery and integrations with enterprise systems.

Key Highlights

• Zington publishes and supports the TAF test automation framework; TAF is open source, available in both Java and C# versions, and is used by about 20 organisations.
• Their CMS advisory explicitly evaluates platforms including Umbraco, Optimizely (EPiServer), Adobe, Contentful, and Storyblok.
• The company states an intensified SAP focus and positions itself as an SAP Gold Partner with a network of more than 500 SAP specialists in Europe.
• As part of VASS, Zington highlights a nearshoring/delivery footprint across 26 markets and more than 5,000 experts in Europe, enabling scaled teams for long‑running projects.

Services

• Development Solutions
• Web & E‑commerce
• Test & Quality Assurance
• ERP & Business Systems

Contact Information

Website: www.zingtongroup.com

Address: Birger Jarlsgatan 9, Stockholm

Phone: +46 8-406 68 00

Email: info@zingtongroup.com

10. Netlight Consulting

Netlight Consulting is a Stockholm-founded digital consultancy that combines software engineering, product and organisational capabilities to design and build enterprise-grade applications. The firm delivers hands-on teams and long-term client partnerships to move initiatives from strategy to production.

It operates with cross-functional product teams and a cloud-native delivery model that emphasises technical due diligence and production readiness. Those capabilities align with the needs of enterprise .NET initiatives that require architectural modernisation, cloud migration, and product-led delivery.

Key Highlights

• Microsoft Azure Partner with 30+ Azure certificates across the organisation.
• ISO 14001 and ISO 9001 certifications for Netlight Consulting AB and GmbH, and TISAX certification for Netlight Consulting GmbH.
• 2,200+ consultants and offices across 16 countries, with major presence in Stockholm and Gothenburg.
• Performed technical due diligence that supported a major Q2 2025 Nordic SaaS M&A transaction.

Services

• Software Engineering
• Cloud & Infrastructure
• Data & AI
• Product

Contact Information

Website: www.netlight.com

Phone: +46 8 616 99 40

Email: info@netlight.com

Address: Regeringsgatan 25, 111 53 Stockholm, Sweden

Conclusion

This shortlist is designed to help you narrow Swedish .NET providers down to a few finalists; SoftPro is the featured partner for this guide. Focus on how each firm’s scale, delivery model, and industry focus align with your specific objectives before engaging.
Prioritize project size and duration, Microsoft and Azure experience, capacity for long-term delivery and cross-border work, and familiarity with cloud and AI initiatives. Validate final choices with technical references, proofs of concept, and clear governance and compliance terms to reduce risk before signing a contract.