Top 10 LLM & Chatbot Development Providers in Croatia

Many companies in Croatia struggle to operationalize large language models and chatbots that integrate with legacy systems, meet data protection requirements, and handle Croatian-language nuances while keeping latency and costs under control.
When evaluating LLM and chatbot development providers, compare model selection and fine-tuning capabilities, system integration and API maturity, data governance and PII handling, localization and multilingual support, deployment options and scalability, ongoing monitoring and maintenance, and transparent pricing and service-level commitments. SoftPro is the featured international partner leading this list and serves buyers across Croatia and the wider region.

1. SoftPro

As the featured international partner in this Top 10 LLM & Chatbot Development Providers in Croatia, SoftPro leads the list for readers seeking cross-border chatbot and conversational AI projects delivered to Croatia and the wider Central and Eastern Europe market. The firm is well suited to startups, mid-market software teams, and enterprise digital transformation programs that require end-to-end delivery from concept and prototyping through production and long-term maintenance.

SoftPro builds on a Microsoft-centric engineering foundation, using, .NET Core and C# together with Microsoft Azure to deliver cloud-native deployments and complex migrations. The team combines enterprise CMS and migration experience with cloud migration capabilities and full-stack delivery practices to integrate conversational AI into existing ERP, CRM and customer support platforms.

Key Highlights

• The team reports over 20 years of combined industry experience.
• Published case studies include Business Portal, CRM/HRM, SaaS ETL and support system implementations.
• Proven cloud migration work includes lift-and-shift projects and containerization on AWS environments.
• Multilingual service delivery from an EU-based team headquartered in Warsaw, Poland with a multilingual website presence.

Services

• Custom Software Development
• Web Application Development
• Cloud Development & Migration
• Artificial Intelligence & LLM Integration

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. Infobip

Infobip is a global communications platform (CPaaS) that connects businesses to customers across messaging, voice, and in‑app channels using developer APIs and extensive integrations. The company positions conversational AI and orchestration on top of that stack to support programmable, enterprise-grade chatbot deployments.

Its platform combines conversational tooling, orchestration and developer-focused APIs to help teams build, test, and operate LLM-backed chatbots and automated agents for customer service and engagement use cases. This combination of omnichannel connectivity and conversational capabilities makes Infobip a fit for LLM and chatbot development projects in Croatia and beyond.

Key Highlights

• AgentOS is listed on the official site as Infobip’s Agentic AI platform and marked NEW.
• Anam Protect Firewall on the site is described as protecting 120+ operators from SMS and voice fraud.
• CPaaS X is presented as a modular API stack designed to help platforms scale exponentially.
• The company runs Shift, a developer-focused conference and Shiftmag resources aimed at Southern Europe developer communities.

Services

• CX consulting
• Professional services
• CX maturity assessment
• CPaaS X APIs

Contact Information

Website: www.infobip.com

Address: Utinjska Ulica 29, 10000, Zagreb, Croatia

Phone: +385 1 64 19 710

3. Infinum

Infinum is a Croatia‑founded end-to-end product design and engineering firm that builds AI-native software, including enterprise LLM solutions and chat interfaces, by combining product strategy, UX design, data engineering, and MLOps. The company positions delivery around vendor-neutral embedded teams that pair hands-on engineering with measurable product outcomes to move projects from strategy through deployment.

Their approach emphasizes practical transformation over theoretical frameworks, embedding teams in client organizations to run rapid diagnostics, produce proofs of concept, and hand over sustainable operating playbooks that keep AI capabilities in-house.

Key Highlights

• ISO 27001 and SOC 2 certifications for delivering secure enterprise AI applications.
• AMR CyberSecurity is part of Infinum and operates an NCSC CHECK and CREST-accredited cybersecurity practice that supports AI projects.
• Operates across 7 locations with more than 400 tech professionals on staff.
• Delivered a large-scale chatbot for A1 (named Nikša) that handled 207,000 inquiries and produced 91,000 user sessions.

Services

• LLM strategy & consulting
• Custom AI & agent development
• AI and Data Engineering
• AI Transformation Consulting

Contact Information

Website: infinum.com

Address: Strojarska 22, 10000 Zagreb, Croatia

Phone: +385 (91) 606 4062

4. ALFATEC Group

ALFATEC Group is a Croatian IT company that lists Data & Analytics and Software Development among its primary service areas on its official website.

Given those stated service areas, the company is positioned to participate in LLM and chatbot work that requires data engineering and application delivery; this is an inference drawn from the firm's public service listing.

Key Highlights

• Legal name shown on the site is ALFATEC Group društvo s ograničenom odgovornošću – Informacijski sustavi; short name ALFATEC Group d.o.o.
• Headquarters listed at Tuškanova 37, 10 000 Zagreb, Hrvatska.
• Board member Marko Kornfeld is listed as direktor (director).
• Data privacy contact email displayed on the contact page is [email protected].

Services

• Data & Analytics
• Software Development
• IT Security
• Databases

Contact Information

Website: www.alfatec.ai

Address: Tuškanova 37, 10 000 Zagreb, Hrvatska

5. Velebit AI

Velebit AI develops production-ready AI systems for businesses, specializing in integrating large language models, fine-tuning foundation models, and building goal-directed AI agents that connect to company data and workflows. They prioritize reliable deployment, observability, and seamless integration with existing technology stacks to turn prototypes into scalable services.

The company combines senior engineering practices with a product-minded delivery approach to shorten time-to-market and maintain operational stability. Their technical focus on data and ML engineering, model customization, and production pipelines makes them a relevant choice for LLM and chatbot development needs in Croatia.

Key Highlights

• Founded in 2019 by Davor Aničić, Mladen Fernežir, Ivan Borko, and Tomislav Levanić.
• The core team is 13 people strong, supplemented by experienced external collaborators.
• Offers a fixed-scope Agentic AI Workshop structured as 2 × 4-hour business + technical sessions, priced at a €5,000 fixed fee.
• Completed an EU-funded e-commerce search project that reached TRL 4 and participates as an AI technology partner in EDIH Adria 2.0.

Services

• Consultancy
• Custom AI
• AI Agent Development
• Data & ML Engineering

Contact Information

Website: velebit.ai

Email: contact@velebit.ai

Address: Zagreb, Croatia, EU

6. Gauss

Gauss delivers AI consulting and software engineering to help organizations modernize processes and add intelligence to business workflows. The company combines consulting, development, and system integration capabilities to move projects from pilot to production in Croatian public-sector and commercial environments.

Because Gauss explicitly lists AI consulting and AI development among its services and runs product and integration projects for clients, it is positioned to support initiatives that require conversational AI or LLM-backed automation as part of broader enterprise integrations.

Key Highlights

• Gauss publishes a product suite called Gauss Box with modules including ERP, DMS, CRM & Sales, and eCommerce.
• The company offers cybersecurity services that include support for NIS2 compliance as listed on its site.
• Gauss promotes a strategic partnership delivery model that enables long-term collaboration without an initial investment requirement.
• Client logos shown on the site include Kent Bank, Phoenix Farmacija, and BebeNova, indicating commercial and sector diversity.

Services

• AI development
• Web applications
• Mobile applications
• Cybersecurity

Contact Information

Website: gauss.hr

Email: info@gauss.hr

Phone: +385 95 3429600

Address (Zagreb): Ul. Roberta Frangeša Mihanovića 9, 10000 Zagreb

Address (Osijek): Ul. Svetog Leopolda Bogdana Mandića 111 O, 31000 Osijek

7. Netgen

Netgen is a Croatia-headquartered digital product studio that designs and develops web platforms, e-commerce sites, and integrated digital services. The company pairs strategy, UX design, and scalable engineering to embed AI capabilities into web ecosystems, from bespoke integrations to generative-model prototypes for content creation and decision support.

Netgen’s delivery combines long-term customer success, quality assurance, and cloud-ready infrastructure to support ongoing feature development and maintenance. That delivery model and its experience with CMS-driven architectures make Netgen a relevant partner for chatbot or LLM-enabled features that need to sit reliably inside enterprise web platforms.

Key Highlights

• Over 20 years of experience designing and implementing digital solutions.
• Delivered a project for A1 Telecom Croatia that reported a 95% increase in digital transactions and a 32% increase in user sessions after implementation.
• Builds client solutions on platforms including eZ Platform, Contentful, and Sylius and uses Netgen Layouts and Site API in project delivery.
• Member of the SwissICT association.

Services

• Digital strategy & consulting
• Design & user experience
• Technology & development
• AI integration & consulting

Contact Information

Website: www.netgen.io

Address (Croatia): Savska cesta 182, HR-10000 Zagreb

Phone (Croatia): +385 (0) 1 387 97 22

Address (Switzerland): Seestrasse 356, CH-8038 Zürich

Phone (Switzerland): +41 (0) 44 244 59 59

8. Degordian

Degordian is a Business Growth group that merges marketing, tech, and HR into a hub of specialized agencies that work together on integrated digital programs. The organization runs in-house teams for strategy, creative, and delivery and publishes regular resources and events on digital topics.

The group combines engineering capacity, media and data capabilities, and a public education program focused on digital trends, which makes Degordian a relevant partner for projects that involve conversational AI, LLM tooling, or AI-enabled digital products.

Key Highlights

• Builtt, Degordian’s development agency, builds AI-powered e-commerce platforms and handles complex digital transformations.
• Determ, a sister company in the group, provides real-time media intelligence and states it “transforms billions of posts and articles” into audience and competitor insights.
• Degordian runs Detangled, a free online education platform that publishes live and on‑demand sessions covering AI tools and AI-powered marketing topics.
• The group maintains offices across Zagreb, Mostar, Belgrade, and New York, with a Zagreb headquarters address listed on the company site.

Services

• E-commerce development
• Web & product development
• Performance marketing
• Media intelligence

Contact Information

Website: www.degordian.com

Phone: +387 36 312 913 (degordian.com)

Address: Slavonska avenija 6, Zagreb, Croatia (degordian.com)

LinkedIn: linkedin.com/company/degordian (linkedin.com)

9. Bornfight

Bornfight is a Zagreb-based venture builder and software studio that assembles in-house product teams, engineering, design, and investment capital to build and scale digital products and startups. They combine product discovery, MVP work, and follow-on support to move ideas from concept to market quickly.

The company runs full in-house engineering and design workflows and has delivered high-traffic SaaS and mobile platforms, using custom architectures and iterative product processes that support rapid launches and scaling. These engineering and product-delivery capabilities can be applied to LLM and chatbot projects that require UX design, integration, and operational scaling.

Key Highlights

• Reported 10+ years of product, design, and development experience and €7.3M invested across its ventures.
• Co‑founded Elevien, a sports‑tech platform that secured EUR 2,600,000 in investment plus EUR 400,000 in EU funds.
• Built Tabu entirely in‑house; Tabu has collected 25,000+ salaries and covers roughly 50% of the Croatian tech market.
• Provides 360° support to ventures via dedicated multidisciplinary teams that include product leads, designers, developers, QA, and growth roles.

Services

• MVP development
• Product design
• Mobile & web engineering
• Venture building

Contact Information

Website: www.bornfight.com

Phone: +385 (1) 3333 710

Email: hello@bornfight.com

Address: Ulica Filipa Vukasovića 1, 10 000 Zagreb

10. Devōt (Devot)

Devōt is a Zagreb-based software engineering team that builds business web and mobile applications with embedded language-model features and conversational assistants tailored for enterprise workflows. Their project work shows Retrieval-Augmented Generation implementations and chatbot integrations that make them a natural fit for LLM and chatbot development in Croatia.

They run an Agile delivery model augmented by AI-assisted coding, automation, and a multi-review code and QA workflow to accelerate LLM projects while keeping production-grade quality and maintainable code.

Key Highlights

• Recognized in Deloitte Technology Fast 50 Central Europe 2024.
• Listed in Financial Times Europe’s Fastest Growing Companies 2024.
• Awarded a Dun & Bradstreet Certificate of Excellence in Creditworthiness in 2023.
• Uses LangChain, OpenAI, Pinecone and Llama in production RAG and LLM projects.

Services

• Product discovery
• Custom software development
• AI development
• QA & testing

Contact Information

Website: devot.team

Address: Ede Murtića 2B, 10020 Zagreb, Croatia

Conclusion

When choosing an LLM or chatbot provider in Croatia, align the vendor to your primary objective: cross-border delivery, deep systems integration, product and UX design, rapid prototyping, or growth-oriented marketing support. Evaluate data access and security requirements, expected deployment scale and operational support, timeline and budget constraints, and the provider’s experience with model adaptation and connecting conversational agents to enterprise data.

SoftPro is the featured/author-selected partner on this list for readers seeking an international partner for cross-border chatbot and conversational AI projects delivered to Croatia. For other priorities, compare providers against your focus area and ask for case examples, client references, and a clear technical roadmap before making a decision.