European product studios that build AI

A product studio is a firm that designs and builds a software product for a client. One team covers the research into what users need, the design of the screens and the engineering, and the client receives a working product at the end. Every studio on this page says, on its own pages, that it builds AI features into the products it makes. After Reveneau and Fluxon, six European studios appear here: Software Mansion, Miquido, Monterail, Infinum, STRV and Mindera.

The facts were read on 21 October 2026. Each sentence says where its fact comes from. A register is an official public list of companies kept by a government body, so its facts come from outside the studio. For the reasons to choose a studio over a consultancy, read Reveneau compared with a product studio.

Reveneau and Fluxon

Reveneau comes first. It has no office in Europe, and its offices are at 435 Utah Street in San Francisco and on Floor 33, 909 Mainland Street, in Vancouver. Reveneau says AI writes 100 percent of its code. It says every change must pass a large eval suite before release, and that it writes the suite, a set of automated tests, from the project's specification. Reveneau says Jev grades the suite and makes it run ten times faster than its previous grader did. It says it uses AI in place of hiring more engineers and passes the saving into clients' prices, and that it takes responsibility for the whole project through production and after release. You can read about its full product build service.

Fluxon comes second. A heading on its AI development page reads "Forward-deployed by default." [22] Forward deployed means its engineers work inside the client's own team. Its careers page lists roles located in Poland and Portugal [23], so it hires in both countries, and none of its pages names a European office.

The six studios at a glance

Studio	Head office, and who says so	AI work it describes	Size, by its own count	Anthropic tier
Software Mansion	Kraków (Polish court register)	AI in mobile and web apps; models that run on the phone	400+ engineers	Select
Miquido	Kraków (Polish VAT register)	AI added to existing mobile apps, with safety checks	Not published	Not listed
Monterail	Wrocław (Polish court register)	AI products and AI features in web and mobile apps	130+ team members	Not listed
Infinum	Zagreb (own site)	AI agents, AI consulting, apps	396 people in 2025; "TECH PROFESSIONALS 400+" on the homepage	Not listed
STRV	Prague (Czech ARES register)	AI and machine learning features in apps	200+ people	Not listed
Mindera	Porto (own site)	AI-enabled engineering for retail and travel	"over 1,300 people"	Not listed

Software Mansion

Software Mansion's AI page says it has "400+ engineers, including a dedicated AI team" [2]. The Polish National Court Register (KRS), which records every Polish company with its legal form and seat, lists Software Mansion S.A. under number 0000961952, a joint-stock company with its seat at ul. Zabłocie 43b in Kraków [4]. A joint-stock company is one whose capital is divided into shares. Its homepage says it is "Listed on NewConnect", an alternative share market run by the Warsaw Stock Exchange [3].

On AI, the page says Software Mansion built React Native ExecuTorch, "a library for running AI models directly on the device", and Private Mind, "an on-device AI assistant". On-device means the AI model runs on the user's phone itself. React Native is a tool for building phone apps from one set of code, and a library is a piece of code other programmers reuse. The page also says, "We built key parts of the AI-powered app builder for Vibecode, where anyone can create mobile and web apps using natural language." Its text in Anthropic's directory says it builds "AI features, agentic workflows and on-device inference into real products for web, mobile and real-time media". Agentic workflows are tasks that AI agents carry out step by step by themselves. Inference is the step in which a trained model produces an answer. Anthropic lists Software Mansion at the Select tier [1].

Miquido

Miquido's homepage says, "Engineered by seniors, accelerated by AI." [5] The Polish Ministry of Finance VAT register, under the tax number Miquido prints in its footer, gives its address as Zabłocie 43a in Kraków and its registration date as 1 March 2011 [24]. Its AI integration page says, "We integrate AI into existing mobile platforms as a production program", and lists "Prompt injection protection, PII anonymisation, hallucination prevention, and human-in-the-loop governance" [6]. Prompt injection is an attempt to trick a model with hidden instructions. PII means personally identifiable information, such as names and addresses. A hallucination is a confident answer the model invented. Human-in-the-loop means a person approves key decisions. The page shows a project tile for "PZU Voice assistant for instant travel insurance", and PZU's own confirmation was not read.

Miquido is the one studio that prints prices on the pages read. Its AI Kickstarter page gives "$ 15,000 +" as the cost of "1 GenAI solution with AI Kickstarter" and "$ 40,000 +" as the cost of "1 GenAI app with traditional ground-up AI development" [7]. The page asks buyers to contact Miquido for a personalised quote.

Monterail

The Polish court register lists Monterail under number 0000357415, at ul. Oławska 27 in Wrocław, entered on 27 May 2010 [10]. Its two shareholders in the register are family foundations, a Polish legal form that holds a family's assets. Monterail also names an office in Berlin. Its homepage counts "130 + Team members" and describes two AI projects [8]. For Simfoni, it says it "developed Insights AI, powered by Claude on AWS Bedrock, to read the spend data and draft the report on its own." AWS Bedrock is Amazon's service for using AI models through its cloud. For SPIE Belgium, it says it built "one AI-first platform, live in seven weeks at a fixed price." A fixed price is one sum agreed before the work starts.

Its AI page says, "Most AI projects take 8 to 20 weeks, depending on scope and complexity." [9] It splits the work into Diagnose, 2 to 4 weeks; Prove, 4 to 6 weeks; and Ship, 8 to 16 weeks. It prints no price.

Infinum

Infinum's about page tells its story from 2005 and gives "396 people in 22 teams" in 2025 [11]. Its homepage says "TECH PROFESSIONALS 400+". Its legal page names Infinum d.o.o., a Croatian limited liability company at Mala Švarča 23 in Karlovac, entered in the court register of the Commercial Court in Zagreb. The Croatian register could not be read by script to check it. UK Companies House lists its UK company, Infinum Limited, as active, incorporated on 16 July 2021 [14].

Its AI page offers "Agentic AI & automation", described as "Building AI agents that automate complex tasks, reduce operational overhead, and speed up decision-making" [12]. An AI agent is a program that uses an AI model to carry out a series of steps by itself. Its homepage shows a project titled "AI-powered revenue optimization for hospitality industry" and names Maistra as the client. Its newsroom carries the headline "Infinum Launched a Paid FDE Academy for the Engineering Role Nobody Teaches" [13]. FDE stands for forward deployed engineer.

STRV

The Czech ARES register, the country's public register of businesses, lists STRV s.r.o., a Czech limited liability company, at Rohanské nábřeží 678/23 in Prague, created on 4 May 2009 [16]. STRV's about page says "Here since 2004" and counts "200 + People" [17]. ARES also lists a second company, STRV Group SE, at the same address. How the two companies are related was not read.

Its services page says, "We apply AI and machine learning solutions to drive growth and boost efficiency for your business." [15] It lists recommendation and personalization, content moderation and fraud detection, computer vision, generative AI, natural language processing, predictive analytics, machine learning models on edge devices, and sentiment analysis. Content moderation is the work of finding harmful posts, and sentiment analysis reads whether a text is positive or negative. The same page links a blog post titled "How we built 2 custom AI solutions in 4 months". AI is one of the seven services STRV lists.

Mindera

Mindera's homepage says it is "a global AI-enabled consulting and software engineering company with over 1,300 people across nine locations from UK to Australia." [18] Its Portugal page says its first office opened in Porto in 2014 and that it added Aveiro in 2018 and Coimbra in 2021 [21]. UK Companies House lists Mindera UK Limited as active, incorporated on 28 September 2016, with its registered office in Leicester, and names Mindera Holdings Limited as the company with significant control over it [20].

Its AI page shows a case study titled "AI-driven customer profiling powers personalisation", a case study about an AI hackathon for Waitrose, and a blog post titled "AI Insights: Building an Agentic Developer Platform from Scratch" [19]. A hackathon is a short event where teams build first versions of ideas. The case studies themselves were not opened.

Questions to put to any studio

Ask which AI model each feature will use, who pays for the model's use each month, and what happens to the feature if that model is retired. Ask to see the tests the studio will run on the AI's answers before release, and who writes them. Ask which of the safety checks in Miquido's list the studio will build, whatever studio you hire, because the list names four risks in plain terms: hidden instructions, personal data, invented answers and decisions without a person. Ask for the length of each step, as Monterail publishes, and for a price for the first step before you commit to the rest.

Ask where the people on your project will work. All six name offices in Poland, Croatia, Czechia or Portugal, and Monterail, Infinum and Mindera also name offices in other European countries. Ask which company will sign the contract and look it up in its country's register.

When a studio fits, and when it does not

A studio fits when you need a whole product, with screens your customers will use, and the AI is one part of it. It fits less well when the AI model itself is the hard part: a model trained on your own data, a system that reads thousands of documents, or work that runs inside your back-office systems with no app around it. For that work, read European AI-first firms. If you need many engineers across several countries, read large European IT groups with an AI practice. To talk through a product with the first firm on the list, contact Reveneau.