# Peakfijn > Peakfijn is an Amsterdam-based software development agency and venture builder, founded in 2013. We help aspiring tech entrepreneurs and startups succeed by building top-notch software, from native apps and web applications to fully private, sovereign AI solutions. We work with you instead of for you, so your success drives ours. ## What we do - We build native apps, web applications, APIs and custom AI solutions for ambitious startups and corporate startups. - We focus on maximizing the effect of your available resources rather than billing as many hours as possible. Projects start from a minimum budget of EUR 25,000. - We help set up your own in-house development team in an average of 6 to 12 months, so you can keep growing independently. We aim to be no longer operationally involved by the time you reach Series A. - Select startups can pay part of our fee (up to 25%) in equity. We never work for equity only, and any equity is independent of the cash fee we invoice. ## How we work - We follow Scrum principles, working in two-weekly sprints with rapid, iterative delivery. - Fast-paced cooperation using remote tools such as Slack and video calling. - We keep our core team small and agile, hiring the best-fit experts for each project. - We prefer building custom Python and TypeScript software and AI solutions over CMS platforms like WordPress, Drupal or Shopify. ## Artificial intelligence We build custom AI solutions that run fully private and sovereign: on your own infrastructure, with your own models, without your data ever leaving your company. - Your own LLM: we run and fine-tune open-source language models on your hardware or private cloud, with no dependency on Big Tech. - RAG infrastructure: we connect models to your own knowledge sources for accurate, traceable answers based on your documents, data and context. - Tooling and integrations: from smart assistants to automated workflows that slot into your existing systems. ## Who we work with - Ambitious startups with a digital product or service as their business model. Around 60% are B2B SaaS companies. - Founding teams that have the network and domain knowledge but lack in-house software development expertise. - Corporate startups: departments bringing a new digital product to market. ## Selected work - [Oaky](https://oaky.com): Automated and personalised upselling SaaS for hotels. Co-founded by Peakfijn in 2013, exited to Plusgrade in 2025. Used by 3,000+ hotels across 60+ countries. - [Pro Parents](https://proparents.nl): App supporting organizations that care for working parents (to be). Raised 2M+ in funding. - [GoDutch](https://godutch.com): Fair banking that shares profits with users and restores nature for every account. 22,500+ active users, EUR 2.4bn in transactions annually, 625,000m2+ regreened. - [Sfered](https://sfered.nl): 3D scanning solution that lets opticians sell custom eyewear fitted to a customer's face. Raised EUR 1.5M+ in funding. ## By the numbers - Founded: 2013 - Success stories: 100+ clients - Investments: 23 startups - Funding raised by clients: more than EUR 21M ## Careers - [Jobs](https://peakfijn.nl/jobs): We hire positive people who enjoy working with experienced developers. Positions are based in the Netherlands or remote within the EU or UK, full-time or part-time. Open applications are welcome. ## Contact - Email: hello@peakfijn.nl - Phone: +31 (0) 20 7000 000 - Location: Amsterdam, the Netherlands - Website: https://peakfijn.nl - Languages: English and Dutch