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Bring the idea. We run the assembly line.

Assembly HQ turns half-formed ideas into shipped software. You hand us the concept — we scope it, price it flat, build it with our senior in-house team, and hand back a working product. No freelancer roulette. No agency bloat. No surprises on the invoice.

Built in
48-hour scoped quote
Fixed price, milestone billing
You own 100% of the IP
Scroll
Fixed-price builds
Milestone billing
100% IP ownership
Vetted specialist network
Private client portal
Written, documented delivery
Warranty on every milestone
One point of contact
Fixed-price builds
Milestone billing
100% IP ownership
Vetted specialist network
Private client portal
Written, documented delivery
Warranty on every milestone
One point of contact
Why we exist

Software shouldn’t be a gamble.

// the Assembly thesis

Everyone with an idea hits the same wall: to build it, you have to become something you’re not — a recruiter, a project manager, a QA lead, a contract lawyer.

We watched it happen over and over. A founder finds a developer on a marketplace. The first month feels great. Then the updates slow down, the scope quietly balloons, the person goes quiet for a week, and suddenly the code lives on a laptop you’ll never see again. Or they go the other way — hire a big agency, and disappear into a fog of account managers, kickoff calls, and change-order invoices for things they thought were included.

Both roads make the client carry the risk. We built Assembly to carry it for you.

Assembly HQ is the layer in between. You get the reliability and process of a firm with the speed and directness of a small team. We’re a senior in-house build team — not a directory of freelancers. Your project is taken on by people who work together every day, with the depth to pull in trusted specialists when a build needs extra firepower. You deal with one team, one price, one deadline. Behind the glass, a full crew moves. In front of it, you just watch your product get built.

No hourly meters. No mystery. No handoffs where things fall through. A fixed price agreed before we start, a private portal to watch it happen, and a contract that hands you 100% of the code at the end. That’s the whole idea — make building software feel safe.

A
The Assembly HQ teamBoutique by design · senior in-house team · operating worldwide
The Assembly method

Most builds fail in the handoffs. So we removed them.

Four stations. One in-house team. You touch the first and the last — we run everything in between.

01📥

You brief us

Tell us what you need — a sentence or a spec. We ask the sharp questions and return a scope with a fixed quote.

→ within 48 hours
02🧩

Your build gets our team

A senior in-house crew that’s already working — not a freelancer we go hunting for after you sign. Ready on day one.

→ no sourcing, no waiting
03⚙️

We build in the open

Progress, deliverables, and one clean message thread — all live in your private portal. No status-meeting theatre.

→ tracked in real time
04🚀

We ship it

Every milestone has an acceptance step. Final delivery matches the spec or we fix it under warranty — free.

→ you own everything
Chaos in. A finished product out.

You experience one relationship, one price, one deadline — while a whole team moves behind the glass.

Why teams switch to us

The freelancer you found on a marketplace can’t give you this.

◇ Going it alone

  • × You vet, hire, and babysit strangers
  • × One person, one point of failure, no cover
  • × Scope creep turns into surprise invoices
  • × Ghosting mid-project, and your code held hostage
  • × You’re the project manager whether you wanted to be or not

◆ Running the Assembly line

  • A senior in-house team, working together every day
  • A contract with IP assignment — the code is yours
  • Fixed price agreed up front; changes are scoped, never sprung
  • A private portal with live progress and one message thread
  • A smaller team means faster calls and cleaner handoffs than any big shop
What we build

Product-grade software, across the stack.

Stack-agnostic by design. We choose the tools that fit the job, not the ones we’re stuck with.

// 01

Web & product

  • SaaS platforms & dashboards
  • Marketplaces & portals
  • APIs & system integrations
  • Database & backend architecture
// 02

AI & automation

  • LLM-powered features & agents
  • Workflow & ops automation
  • Data pipelines & scraping
  • Custom internal tooling
// 03

Mobile & infra

  • iOS & Android apps
  • Cloud, DevOps & CI/CD
  • Performance & scaling
  • Security hardening
What makes us different

Three things a marketplace hire structurally can’t match.

01 / DEPTH

A team, not a person

Your build runs on a senior in-house crew with cover behind them. Nobody disappears mid-project and takes your product hostage. Continuity is structural, not luck.

02 / TRUST

Contracts that protect you

Full IP assignment on delivery, warranty on every milestone, and change orders that are scoped and signed before a line is written. The code is yours, always.

03 / CLARITY

Software, not status calls

A private portal shows live progress, deliverables, and one documented message thread. You always know where things stand — without chasing anyone.

Your command center

Every client gets a private build portal.

The part most agencies do over scattered emails and calls, we built into software. You get a live window into your project — and a single place to reach the team.

📊
Live progress & deliverablesSee exactly where your build stands — no chasing.
💬
One message threadWritten, documented, searchable. Images welcome. No calls required.
🔒
Private & secureYour data, your project — walled off, role-controlled, yours alone.
assemblyhq.io/dashboard
YouAny chance we can add Stripe payouts to the vendor flow?
Assembly TeamScoped it — one extra milestone, quote’s in your portal. Approve today and it ships with the current sprint.
YouApproved. So much easier than email 🎉
Marketplace MVP
Milestone 3 of 4 · in progress
72%
48h
From brief to fixed quote
100%
IP ownership transferred to you
1
Point of contact, start to ship
0
Surprise invoices, ever
Engagements

Flat pricing. You know the number before we start.

Every project is quoted to scope. These are the shapes most engagements take — your exact quote comes back within 48 hours of your brief.

Sprint
MVP · fixed
For founders who need a clean, working first version built fast.
  • Single focused product build
  • 2–4 week delivery window
  • Milestone billing
  • Portal access & warranty
Start a sprint
Most projects
Build
Custom · scoped
Full platforms, marketplaces, and multi-part systems — end to end.
  • Multi-milestone delivery
  • Dedicated specialist team
  • Architecture & scaling built in
  • Change orders scoped & priced up front
  • Full portal & priority support
Scope my build →
Partner
Retainer · monthly
An ongoing build team on tap for teams that ship continuously.
  • Reserved monthly capacity
  • Rolling roadmap delivery
  • First call on your team’s time
  • Priority everything
Talk retainer
Before you ask

Straight answers.

Who actually writes the code?

+

A senior in-house team that works together every day — supplemented by trusted specialists we’ve vetted when a build needs extra scale. You deal with Assembly as one relationship, and you never manage a freelancer yourself.

Do I own the code and IP?

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Completely. Our contracts assign all intellectual property to you on final payment. The build is yours to keep, extend, or take elsewhere — no lock-in.

What if the result isn’t right?

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Every milestone has an acceptance step, so you’re never surprised at the end. If final delivery doesn’t match the agreed spec, we fix it under warranty at no extra cost.

How do scope changes work?

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Written change orders only. We scope the addition, price it, and get your sign-off before any extra work begins. No silent additions, no surprise line items.

How do payments work?

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Typically 50% to start and 50% on delivery for smaller builds, or milestone-based billing for larger ones. You release funds as work lands — never all up front on a promise.

How fast can you start?

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You get a scoped quote within 48 hours of your brief. Once approved and the upfront milestone is in, we assemble the team and begin — usually within days.

What’s the tech stack?

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Whatever fits the job. React, Next.js, Node, Python, Swift, Kotlin, Go, and more. We’re stack-agnostic and choose for longevity and fit, not familiarity.

Let’s build the thing.

Send us what you’re picturing — one line is enough to start. You’ll have a scope and a fixed quote back within 48 hours.

hello@assemblyhq.io Read the process again

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