Best LLM and generative AI software houses in Poznań

Source observations

• STX Next started in 2005 as the Polish branch of a Dutch company. Innova Capital acquired a majority stake in 2020 (source).
• The about page claims 450+ specialists, 1,000+ projects and 400+ clients (source).
• The site says STX Next earned ISO 27001 in 2024 and TISAX in 2025 (source).
• Clutch lists 103 reviews with a 4.7 average and five locations, including Mérida, Mexico (source).
• About page cites founding in 2005, 450+ specialists, 1,000+ projects and 400+ clients (source)
• Positions itself for industrial and financial sectors, turning AI experiments into production systems (source)
• AI agents are offered as a 4-week fixed-price MVP built on LangChain, LangGraph, MCP or AWS Bedrock (source)
• Portfolio features Permira, Paradox Interactive and an open-source coding agent, DeepNext (source)

Clients they name: Man Group, Linde, Zego, Decathlon, Mastercard, European Space Agency

Source observations

• The brand says it has built software since 1999. The legal entity, MERIXSTUDIO sp. z o.o., has KRS 0000938427 from 2021 (source).
• The about page claims about 100 expert-level people, all mids and seniors (source).
• ISO 9001 and ISO 27001 are shown with TÜV NORD Polska logos (source).
• The Dubai presence runs through an on-site partner, Solution21, rather than an own office (source).

Clients they name: Six Flags, Juilliard School, Biocore, RP Group, HYDAC, Toshiba

Source observations

• The about page dates the company to 2008 and lists 400+ people, 2500+ projects and an NPS of 73 (source).
• Netguru describes itself as a certified B Corporation (source).
• The site lists only one office, in Poznań, and activity across the US, UK, DACH and MENA (source).
• Clutch lists 73 reviews with a 4.8 average and one location (source).
• Claims 18+ years in business, 2,500+ projects and a 73 NPS (source)
• Lists Forward Deployed Engineer and AI Pods among its AI capabilities (source)
• Says it has helped 600+ companies; clients include IKEA, Volkswagen and Vinted Go (source)
• Certified B Corporation offering remote, office or freelance collaboration (source)
• Netguru offers an AI Pod service: a senior European team that it says ships production-ready AI within six weeks. (source)

Clients they name: IKEA, Volkswagen, Żabka, Careem, Vinted, Delivery Hero

Source observations

• Case studies include cerebral palsy screening from infant video, AI analytics for smart hospitals for Kontakt.io, wildfire mitigation work for the US Forest Service via Wildfires.org and the Take&GO autonomous store (source).
• The site says it builds to IEC 62304, ISO 13485:2016, HIPAA and GDPR but does not claim to hold these certifications (source).
• The home page claims OpenAI Partner Network membership, Google and AWS partnerships and 80% of clients from referrals (source).
• The footer lists Bydgoska 2/8, 61-127 Poznań and KRS 0000638297 (source).
• Clutch shows 5.0 from 10 reviews, founded 2018, $50 to $99 per hour and a $10,000 minimum; most reviewers name no areas for improvement (source).

Clients they name: Kontakt.io, Wildfires.org, Modern Health, Take&GO, highlights.ai, MyAlyce

Source observations

• The domain nextapps.pl redirects to nextapps.co under the same NextApps brand (source)
• The site claims 10+ years of experience, 100+ projects and 400+ IT experts (source)
• A case study says NextApps completed the first integration of PayU's mobile payment SDK with Flutter (source)
• Open roles publish B2B ranges, e.g. Flutter Developer 8,000-15,000 PLN + VAT per month, all mobile or QA (source)
• Service pages still contain 'Lorem ipsum' placeholder headings (source)

Clients they name: Walutomat, Veri1, Tagatic

Source observations

• The home page focuses on the agentic economy, autonomous finance, x402 machine-to-machine payments, quant models, crypto and stablecoins (source).
• The footer names Paradygmat AI SP. z o.o., VAT ID 7773382326, at ul. Królowej Jadwigi 43 in Poznań as the operator of Tokenomia.pro (source).
• The home page shows no named clients or case studies, only service descriptions and a 30-minute call offer (source).
• The homepage positions the company as focused on x402 protocol implementation and agentic finance infrastructure, with four named service lines. (source)

Source observations

• Paweł and Sylwia Rogowicz founded Espeo in 2008, which matches the registry date (source).
• Espeo runs two entities, Espeo Software sp. z o.o. in Poznań and Espeo Software Oy in Helsinki (source).
• Case studies focus on payments and digital assets, including Unbound Security, now part of Coinbase (source).
• Clutch lists 40 reviews and a 25 to 49 USD rate band (source).
• Says it is a member of the Claude Partner Network and sells a 6-week AI-SDLC pilot (source)
• Case studies lean on regulated digital assets and tokenisation, including a Qatari Shariah-compliant property platform (source)
• Product consulting promises a product demo in 1–5 days with senior strategists (source)
• Offices in Poznań and Helsinki (source)

Clients they name: Terveystalo, The Guardian, Ensto, Schibsted, CoinTracking, Unbound Security

Source observations

• The about page says the founders started Apptension in 2012 after winning Poznań Hackfest (source).
• The NiNi Bot case study claims a production PWA in 11 active days with 159 merged pull requests (source).
• The Teamdeck modernization took about nine weeks and 60 pull requests, and its production cutover is still pending (source).
• The stats block on the home page shows placeholder zeros for projects, engineers and CSAT (source).

Clients they name: Riyadh Air, Expo Dubai, LESS, The Grassroots Coach, Miraflora Wagyu, PetProov, Teamdeck

Source observations

• The bare advoxstudio.com address fails with a certificate error; the www address works and names the entity Advox Sp. z o.o. with KRS 0000968018 at Blacharska 11 in Poznań (source).
• The about page says Advox has been on the market since 2009, lists 90+ people and elsewhere over 80, and mentions 11 certified Magento developers (source).
• The history section says it started in 2011 with 5 Magento developers, adopted Python in 2021, began Shopware stores in 2022 and expanded to the US and UK in 2023 (source).
• Partner badges include Adobe Silver, Magento Solution Partner, Hyvä Bronze, ScandiPWA and Shopify, and client logos include Kross, Herlitz, Powerbody and Dino (source).

Clients they name: Kross, Herlitz, Powerbody, Rawlplug, Argip, Kratki.com