Assembly HQ is a development agency that turns your projects into working products. Fixed pricing. Milestone delivery. No freelancer chaos.
Tell us what you need built. We ask the right questions and come back with a clear scope and fixed quote within 48 hours.
We match your project to the right specialist from our vetted network. You never manage freelancers - we handle everything.
Weekly progress updates, milestone-based billing, and a working product at the end. No surprises, no scope creep.
A selection of recent builds. Client details anonymised.
Hardware-level iOS automation system managing Instagram accounts across a fleet of physical iPhones. Includes SMS verification, human-behaviour simulation, IP rotation, and a real-time management dashboard.
End-to-end marketplace with vendor onboarding, payment splitting, real-time inventory sync, and Stripe Connect for automated payouts.
Automated a legal firm's document intake. GPT-4 extracts key clauses, flags risks, generates summaries, cutting processing time from 4 hours to 12 minutes per document.
Every project backed by contracts, milestones, and guarantees - all in writing before we start.
Full MSA with scope, timeline, deliverables, and acceptance criteria. No ambiguity.
You pay as we deliver. 50% upfront, then payments tied to tangible milestones.
On final payment, you own 100% of everything we built. Transferred in writing.
If something breaks within 30 days per the agreed spec, we fix it free.
Cancel mid-project and you pay for completed work plus a 50% kill fee.
Mutual NDA on every project. Your idea never leaves our team.
"We needed an iOS automation system built fast and done right. Assembly HQ scoped it in 48 hours, delivered ahead of schedule, and the system has been rock-solid."
"I tried two other agencies before. Both over-promised and under-delivered. Assembly HQ was the opposite - conservative estimate, then delivered more than I asked for."
We maintain a vetted network of specialist developers across Europe. You deal with us - we manage the builder.
Every milestone has an acceptance step. If the final delivery does not match the agreed spec, we fix it under warranty at no cost.
Written Change Orders only. We scope it, price it, get your sign-off before any additional work begins. No surprise invoices.
Yes. Our Sprint tier is designed for founders who need an MVP built fast and clean.
Stack-agnostic. React, Next.js, Node, Python, Swift, Kotlin, Go, and more. We match the stack to the project.
Download our free project scoping checklist - the same framework we use to estimate every build.
Tell us what you need. We will get back to you within 24 hours with a scope and quote.