Best Ruby on Rails Development Companies in Croatia to Watch

Finding a Ruby on Rails partner in Croatia that combines deep Rails expertise with reliable delivery and post-launch support can be difficult for companies planning new web platforms or migrations. Buyers should compare Rails-specific expertise, previous project case studies, testing and CI/CD practices, architectural design for scaling, security and compliance, team stability, and transparent pricing and support terms.

SoftPro is the featured international partner leading this list and serves buyers across the region for Ruby on Rails development projects.

1. SoftPro

As the featured international partner on this list of Ruby on Rails development companies in Croatia to watch, SoftPro is a practical choice for Croatia-based product teams, scaleups, and enterprise IT groups that need remote engineering capacity for backend modernization, API-driven platforms, and cross-border delivery. The firm positions itself to supply sustained development teams, technical leadership, and integration support for projects that span frontend interfaces and complex back-end systems.

SoftPro’s engineering practice is built on, .NET Core and C#, and the team implements cloud architectures on Microsoft Azure to support migrations, scalability, and long-term operations. The company brings enterprise CMS and migration experience, structured modernization approaches, and ongoing maintenance and support that keep legacy systems aligned with current platform requirements.

Key Highlights

• Team reports more than 20 years of combined experience across projects and engagements.
• Maintains an EU-based delivery team with headquarters in Warsaw, Poland.
• Case studies include business portals, CRM/HRM systems, SAAS ETL platforms, and an Umbraco website project.
• Develops AI features that integrate large language models and retrieval-augmented generation architectures for data-driven workflows.

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. Infinum

Infinum is a Croatia‑founded product studio that designs and engineers end-to-end digital products for startups and enterprises, with Ruby on Rails listed as a core backend technology across its engineering practice. The company combines product strategy, UX design, and backend development to deliver web applications and APIs built on Rails.

Their Rails practice covers full product delivery and team augmentation, supporting long-term maintenance and scalable architectures. Infinum’s offering pairs Rails engineering with enterprise integrations and cloud infrastructure to meet the needs of both startups and large organizations.

Key Highlights

• 400+ tech professionals listed across Infinum’s global teams.
• Offices in seven locations, with headquarters in Zagreb, Croatia.
• Publishes developer handbooks and runs Infinum Academy for practical engineering training.
• Infinum Alliance offers a long-term time & materials partnership model for external engineers and agencies, including Rails specialists.

Services

• Ruby on Rails Development
• API & Backend Engineering
• Team Augmentation
• Enterprise Platform Modernization

Contact Information

Website: infinum.com

Phone: +385 (91) 606 4062

Email: hello@infinum.com

Address: Strojarska cesta 22, 10000 Zagreb, Croatia

3. Rubycode

Rubycode is a Zagreb-based software company that builds web and mobile applications with deep Ruby on Rails expertise. Its core in-house engineering team runs engagements and plugs vetted EU specialists into client workflows to accelerate Rails development and long-term maintenance.

The company supports projects from early prototypes to production systems while maintaining a bench of vetted engineers, designers, QA and delivery specialists across the EU. Its delivery model emphasizes integration with client teams and clear accountability from the Zagreb office.

Key Highlights

• Certified to ISO/IEC 27001:2022.
• More than 50 projects delivered.
• A bench of 300+ vetted specialists covering 36 role families.
• Uses an AI-assisted delivery tool that generates tests and a delivery report for each feature.

Services

• IT staff augmentation
• Dedicated team
• End-to-end development
• Marketing & branding

Contact Information

Website: rubycode.co

Phone: +385 98 980 1880

Email: info@rubycode.co

Address: Savska Cesta 32, Zagreb, Croatia

4. Devōt (Devot)

Devōt builds custom web and mobile applications with Ruby on Rails as a core backend technology. Their engineering teams combine Rails with modern front-end frameworks and AI-assisted workflows to accelerate delivery while prioritizing maintainable, testable code.

They deliver projects across HealthTech, FinTech, and travel-technology sectors where reliability and data integrity are essential. An Agile, delivery-focused process makes Devōt a practical Ruby on Rails partner for Croatia-based and international product teams.

Key Highlights

• Named in the Deloitte Technology Fast 50 Central Europe 2024 list.
• Included on the Financial Times Europe’s Fastest Growing Companies 2024 list.
• Holds a Dun & Bradstreet Certificate of Excellence in Creditworthiness, 2023.
• Code-review policy requires the author plus at least two reviewers and a dedicated QA engineer; development workflows use Gitflow or trunk-based strategies.

Services

• Product discovery
• Custom software development
• AI development

Contact Information

Website: devot.team

Address: Ede Murtića 2B, 10020 Zagreb, Croatia

5. Kodius

Kodius is an engineer-run software studio based in Zagreb that steps into failing or under-resourced funded SaaS to stabilise production and keep product momentum. The team routes every initial inquiry to a senior engineer or product lead and works alongside founders to ship the fixes that make ongoing delivery possible.

Their delivery model emphasises short diagnostic cycles, embedded long‑term collaboration with the same engineers, and operational ownership rather than hand-offs, which makes Kodius a Croatia‑based option to watch for teams that need hands-on product rescue and continuity.

Key Highlights

• Founded in 2016 and still led by the same two engineers who started the company.
• Has inherited and worked on 50+ legacy codebases since 2016.
• Holds a 5.0 average across 24 verified Clutch reviews with no ratings below four stars.
• Offers a productised 4‑week Rescue Sprint with a fixed fee range of €18–28k.

Services

• Rescue Sprint
• Embedded Product Team
• Fractional CTO
• Maintenance Retainer

Contact Information

Website: kodius.com

Email: hello@kodius.com

Phone: +385 1 2095 273

Address: Oreškovićeva 1a · 10 000 Zagreb

6. DECODE

DECODE is an EU-based full-service software development partner with an office in Zagreb, Croatia. Their published tech stack lists Ruby on Rails among backend frameworks, which makes them a viable choice for Rails projects targeting European and global clients.

They deliver through dedicated teams, team extension, and end-to-end engagements built around senior engineers and product-minded delivery. This setup supports long-term partnerships from discovery through production and maintenance.

Key Highlights

• ISO 27001 certification for information security and compliance.
• Private AI workstation “Spark” for running models locally to protect sensitive data during AI development.
• Delivered a mobile app used by 70,000 Royal Caribbean crew members across 40 ships, demonstrating large-scale mobile delivery.
• Uses agentic engineering and runs an Agentic Academy to combine AI-driven workflows with senior engineering oversight.

Services

• Web app development
• AI software development
• MVP development
• Quality assurance

Contact Information

Website: decode.agency

Address: DECODE HQ d.o.o., Radnička cesta 47, Zagreb, Croatia (EU)

LinkedIn: linkedin.com/company/decodehq

7. Ingemark

Ingemark is a Zagreb-based software engineering firm that builds enterprise-grade backends and custom platforms and lists Ruby on Rails among the technologies in its versatile stack. The company emphasizes a structured delivery workflow from discovery and architecture to development and ongoing support, which positions it for long-term Rails backend and e-commerce engagements with large organizations.

Ingemark targets complex, high-performance projects for enterprise clients and designs solutions that bridge backend systems, commerce platforms, and cloud infrastructure to meet rigorous reliability and scalability requirements.

Key Highlights

• Delivered the ZorroTunes regional streaming platform and mobile apps, built on Spree Commerce and deployed to AWS with mobile releases in May 2019 and May 2020.
• Public site lists enterprise references that include a NASDAQ‑100 medical device manufacturer, an S&P Global‑100 telecom division, and the largest retailer and FMCG manufacturer in Southeast Europe.
• The technology stack shown on the site includes Kubernetes, Terraform, Argo CD, GitHub Actions, Commercetools, and Elasticsearch.

Services

• Software engineering
• Cloud and infrastructure consulting
• E-commerce
• DevSecOps

Contact Information

Website: ingemark.com

Email: hello@ingemark.com

Address: Ulica grada Vukovara 269d, 10 000 Zagreb

8. Thespian

Thespian builds custom software that keeps cities moving, healthcare running, education thriving, and blockchain secure. The agency combines product-minded engineering and rapid iteration to help clients reach specific market goals.

Their technology stack highlights Ruby and Ruby on Rails for fast MVPs and clean business logic, complemented by Elixir for always-on systems and modern JS/TS front ends for user-facing interfaces. Thespian positions its teams to deliver both fast iterations and resilient production deployments.

Key Highlights

• Lists Heroku, AWS, and Azure as supported deployment platforms.
• Uses CircleCI for CI/CD and GitHub for code management.
• Client testimonials on the site cite hands-on work in the Cardano ecosystem.
• The site shows six Clutch reviews and a testimonial referencing measurable business impact (35% annual revenue growth).

Services

• Digital product development
• Software modernization
• Staff augmentation
• Software consulting

Contact Information

Website: thespian.eu

Phone: +385 95 345 3521

Email: kontakt@thespian.eu

Address: Zadarska ulica 80, 10000 Zagreb, Croatia

9. Cactus Code

Cactus Code is a Zagreb-based software development team that recently joined forces with Rapid River to become part of Tight Line. The company presents a decade of industry experience and supplies development capacity from Croatia.

The team builds digital business solutions that improve software development workflows and internal processes, with an emphasis on tooling for agile teams. That combination of local delivery capacity and engagement with EU-backed projects makes Cactus Code a Croatia-based development company to watch.

Key Highlights

• Launched an EU-funded project titled "Poker planning AI" (reference NPOO.C1.1.2.R3-I2.01-V5.0047) to implement a methodology for estimating project duration.
• Project total value €25,000 with €15,000 awarded as a grant under the "Vaučeri za digitalizaciju" (Vouchers for Digitalization) scheme.
• Project period runs from November 9, 2023 to November 9, 2024 and the project is carried out solely by Cactus Code.
• Company registered at the Commercial Court in Zagreb (OIB 94398799148, MB 04575920); authorized representative Filip Kapusta; share capital 20,000.00 kn paid in full.

Services

• Digital business solutions
• Application development
• Agile estimation tools

Contact Information

Website: cactus-code.com

Address: Mosorska ulica 25, 10000 Zagreb, Croatia

10. Bytecode (bytecode.hr)

Bytecode is a Croatia-based senior engineering consultancy that diagnoses production Ruby on Rails systems, implements targeted fixes, and stays through rollout to production. Their delivery model pairs hands-on senior engineering with evidence-backed decisions to reduce risk during remediation and feature launches.

The team builds grounded AI workflows and LLM-powered features that are designed to operate within production constraints alongside Rails applications. That blend of production-first Rails delivery and practical LLM work makes them a notable firm to watch for Rails development and Rails-plus-AI projects.

Key Highlights

• Published multiple Rails-tuned models and LoRA adapters on Hugging Face, including qwen3-coder-30b-rails and qwen3-8b-rails, with weights intended for production-grade code generation.
• Describes a one-week diagnostic sprint that starts read-only and delivers evidence, priorities, and a decision-ready readout.
• Lists a selected project delivering backend and product work for Nexible’s digital insurance journeys, demonstrating insurtech experience.
• Publicly cites a production-oriented stack that includes PostgreSQL, Sidekiq, Redis, Docker, and the Claude LLM for AI workflows.

Services

• Performance & Reliability
• AI Systems
• Rails Engineering
• Product Development

Contact Information

Website: bytecode.hr

11. Volito

Volito is a boutique software development company that assembles dedicated software teams and delivers comprehensive software projects. They position dedicated teams alongside client product teams to support multi‑phase engineering and long‑term delivery.

Their engineering stack explicitly lists Ruby on Rails alongside backend languages and cloud platforms, and their delivery model emphasizes embedding teams into product workflows where RoR backends must integrate with frontend, mobile, or cloud services.

Key Highlights

• Operating since 2004 and headquartered in Zagreb, Croatia.
• Team of 70+ people covering front‑end, back‑end and mobile technologies.
• Projects tailored for Blockchain, Cryptocurrency, ERP, Artificial Intelligence, IoT, Data Science, Big Data Analytics, Power BI, Telecommunications, E‑commerce and Machine Learning.
• Client roster includes Unisot and Visma and lists EU Horizon 2020 among its project involvements.

Services

• Dedicated software teams
• Comprehensive software projects
• Front‑end, back‑end & mobile development

Contact Information

Website: volito.digital

Phone: +385 91 2844 288

Phone: +49 176 2558 8637

Email: office@volito.digital

12. Beap

Beap is a digital product studio that combines strategic research, interaction design, and engineering to build coherent product experiences for clients. Their site presents a unified approach that moves work from discovery and prototyping into production engineering and delivery.

The team emphasizes cultural insight, data strategy, and innovation as part of its product practice, making Beap a practical partner for Ruby on Rails projects that require product thinking alongside implementation and operations.

Key Highlights

• Lists Grawe, Archibrix, Core Data, Vista Data Vision, and Hilding Anders among its clients.
• States it has invested in capabilities across cultural insight, data strategy and innovation.
• Presents project examples that include an architectural marketplace, an advanced e-commerce bed shop, and an asset management tool.
• Publishes client testimonials naming individuals and companies, showing direct client relationships and references.

Services

• Strategy
• UX & UI design
• Engineering
• DevOps

Contact Information

Website: beap.co

Phone: +385 91 345 6016

Email: hello@beap.co

Address: Office Ulica Petra Grgeca 4 10000 Zagreb Croatia

LinkedIn: linkedin.com/company/beaplabs/ (beap.co)

13. DECODE Shake (DECODE teams)

DECODE Shake is DECODE’s internally developed mobile bug-reporting SDK and web dashboard that captures crashes, screen recordings, and detailed telemetry for iOS, Android, Flutter, and React Native. The Shake product was built and is maintained by DECODE engineering teams to help developers reproduce and fix mobile issues faster.

DECODE’s engineering teams operate from the company’s Croatia office and deliver backend and product work using a stack that explicitly lists Ruby on Rails among its backend technologies, making DECODE and its Shake offering relevant to Ruby on Rails projects in Croatia.

Key Highlights

• DECODE is ISO 27001 certified.
• The Shake SDK has 26 million installs on unique mobile devices.
• DECODE reports an average of 4.5 years of client collaboration.
• 18% of the company’s development teams consist of QA engineers.

Services

• Dedicated team
• Team extension
• Build-Operate-Transfer (BOT)

Contact Information

Website: decode.agency

Address: Radnicka cesta 47, Zagreb, Croatia

Address: Hammer Straße 19, Düsseldorf, Germany

14. Codilas

Codilas is a Croatia-based software development studio that guides digital products from concept through production using a product-oriented delivery model. The studio emphasizes careful planning with the motto "Measure twice, code once" and shows multi-year case studies for consumer and enterprise platforms, which underscores its ability to sustain long-term technical partnerships.

Codilas combines in-house product thinking with client collaboration to move ideas toward production-ready software. Its Zagreb-based team positions the studio as a pragmatic partner for clients seeking sustained engineering support and end-to-end product delivery.

Key Highlights

• Runs client CMS workloads from a single, centralized Joomla instance for multi-site project management.
• Publishes case studies dated 2022 and 2023, including projects titled MassCells and a True Cost of Ownership automotive platform.
• Lists past clients and partners including Elude, MassCells, Auto TCO, and Devzero in its portfolio.
• Footer identifies the legal entity as Codilas d.o.o. and shows a 2026 copyright alongside links to GitHub and social profiles.

Services

• Product Development
• Product Design
• Software Development
• Consulting

Contact Information

Website: codilas.com

Address: Bozidara Magovca 14, 10000 Zagreb, Croatia

Conclusion

SoftPro is the featured partner on this list and is the author-selected option for readers looking at Ruby on Rails development companies in Croatia to watch. Use that designation as a starting point when comparing providers.
Choose a firm that matches your project stage and team model rather than chasing labels. Prioritize providers with demonstrable Ruby on Rails experience for production stability, clarify whether you need a dedicated team, a product studio, or a short technical rescue, and confirm EU or local presence if timezone or compliance matters. Ask for recent references, a technical audit or pilot engagement, and clear delivery milestones before committing.