14 providers · Sweden

Application Modernisation Providers in Sweden

The application modernisation market in Sweden serves the country's banking and telecommunications and equipment sectors as well as the broader enterprise IT estate concentrated in Stockholm. Application modernisation providers help enterprises evolve legacy applications into cloud-native, maintainable services. The work spans assessment and decomposition of monoliths, refactoring to microservices, container migration, mainframe modernisation and database migration. TechVendorIndex tracks 14 providers actively delivering application modernisation engagements in Sweden, drawn from global systems integrators, regional champions and specialist boutiques.

About application modernisation in Sweden

Legacy modernisation, re-platforming and cloud-native rebuild. Buyers in Sweden typically engage providers in this category to support transformation work tied to banking and telecommunications and equipment priorities, with delivery shaped by local obligations under EU GDPR, the Swedish Protective Security Act, the Finansinspektionen outsourcing rules and the MSB cyber guidance.

Top application modernisation providers in Sweden

The 14 firms below are ranked by verified delivery presence in Sweden, with focus and rating drawn from TechVendorIndex editorial assessments. No vendor pays for placement.

Provider
Focus in Application Modernisation
Rating
Reviews
Accenture Sweden
HQ: Stockholm · BFSI, telecom, public sector
Legacy modernisation and cloud-native rebuild
4.2
Editorial score
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Capgemini Sweden
HQ: Stockholm · SAP, engineering, public sector
Legacy modernisation and cloud-native rebuild
4.0
Editorial score
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Tietoevry
HQ: Stockholm · Banking, public sector, managed
Legacy modernisation and cloud-native rebuild
4.0
Editorial score
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CGI Sweden
HQ: Stockholm · Public sector and BFSI
Legacy modernisation and cloud-native rebuild
4.0
Editorial score
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Knowit
HQ: Stockholm · Digital and design
Legacy modernisation and cloud-native rebuild
4.2
Editorial score
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Sopra Steria Sweden
HQ: Stockholm · Public sector and integration
Legacy modernisation and cloud-native rebuild
4.0
Editorial score
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HiQ
HQ: Stockholm · Custom development
Legacy modernisation and cloud-native rebuild
4.1
Editorial score
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Cygate (Telia)
HQ: Stockholm · Network and security
Legacy modernisation and cloud-native rebuild
3.9
Editorial score
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Atea Sweden
HQ: Stockholm · Infrastructure and reseller
Legacy modernisation and cloud-native rebuild
4.0
Editorial score
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Sigma IT
HQ: Gothenburg · Custom development and SAP
Legacy modernisation and cloud-native rebuild
4.1
Editorial score
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Deloitte Sweden
HQ: Stockholm · ERP, cyber, advisory
Legacy modernisation and cloud-native rebuild
4.2
Editorial score
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TCS Sweden
HQ: Stockholm · BFSI and application services
Legacy modernisation and cloud-native rebuild
4.0
Editorial score
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Infosys Sweden
HQ: Stockholm · BFSI and application services
Legacy modernisation and cloud-native rebuild
4.0
Editorial score
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Cognizant Sweden
HQ: Stockholm · BFSI application services
Legacy modernisation and cloud-native rebuild
3.9
Editorial score
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Application Modernisation market overview in Sweden

Within the broader SEK 230 billion enterprise IT services market in Sweden, application modernisation is one of the more active disciplines, growing roughly in line with the 4.1% headline expansion of the wider services market. Demand is concentrated in Stockholm and Gothenburg, where the largest banking and telecommunications and equipment buyers maintain dedicated programme teams. Procurement decisions are shaped by the fact that Sweden is a small market with outsized R&D intensity, anchored by Ericsson, Volvo, the major Nordic banks and a strong gaming and fintech base in Stockholm. AI-assisted code transformation tools have changed the economics of legacy modernisation in Sweden, particularly for COBOL and older Java estates. Buyers increasingly choose strangler-fig patterns and incremental decomposition rather than big-bang rewrites. Mid-market buyers in Sweden increasingly favour specialist firms with deep domain expertise over generalist consultancies, while the largest programmes continue to be awarded to the multinational integrators with global delivery models and embedded banking practices.

How to select a application modernisation provider in Sweden

Use the following criteria to shortlist providers before issuing a formal request for proposal. Most procurement teams in Sweden weight references and operating-model fit more heavily than headline rate cards.

Typical engagement model

Assessment phases are typically fixed-fee (USD 100,000 to USD 500,000) and run 6 to 12 weeks. Modernisation programmes proper run 12 to 36 months depending on estate complexity, on a mix of fixed-fee and time-and-materials with milestone gates.

Pricing should always be benchmarked against at least three references in Sweden at comparable scope. Engage independent advisory support before signing multi-year contracts above USD 5M annual contract value.

Related categories and regions

Compare the application modernisation market in Sweden with other service lines in the same country, or with application modernisation in other markets covered by TechVendorIndex.

Frequently asked questions

Should we rewrite or refactor legacy applications in Sweden?
Refactor preserves business-rules investment and is usually cheaper. Rewrite is justified only when the application no longer serves the business model or when the existing technology stack carries unacceptable security or talent risk.
How long does mainframe modernisation take in Sweden?
Targeted modernisation of a single mainframe workload runs 12 to 24 months. Full mainframe exit programmes typically take 4 to 7 years for enterprises in banking given regulatory testing requirements.
Can AI accelerate modernisation in Sweden?
AI tools can accelerate code translation, test generation and documentation extraction by 30 to 50 percent. They do not yet replace domain expertise on business-rules interpretation or integration design.
What is the typical cost of a modernisation programme in Sweden?
Programme costs scale with estate complexity. Mid-market application portfolios modernise for USD 5M to USD 20M; enterprise portfolios with mainframe content run USD 50M+ across multiple years.
Last updated: May 2026

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