Stack Margin — Technology superhouse

We build, back, and scale technology companies.

One team across AI advisory, full-stack development, e-commerce, telehealth, and media buying. We deliver the work like a senior studio, and we own the outcomes like operators.

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What we do
AI, software, commerce, health, media
How we work
Senior-led, end to end, in house
How we engage
Build for you, or build with you
Where
Europe & the US, fully remote

What we do

Six disciplines, one operating team.

Everything it takes to build and grow a technology company, in house and end to end. Bring us one discipline, or the whole problem.

01

AI Advisory

We help teams adopt AI and actually ship it, from strategy through to working agents and automation that do real work.

  • AI strategy & roadmap
  • Custom agents & automation
  • Team training & enablement
02

Full-Stack Development

Senior engineering for products that have to work. Web, mobile, and platform software, from design through to launch.

  • Web & mobile apps
  • Platform & API engineering
  • Design to deployment
03

E-Commerce Ventures

We build and scale online brands, our own and our partners', across the US and EU. We know what moves revenue because we live it.

  • Store build & migration
  • Conversion & retention
  • Paid growth & ops
04

Telehealth

Compliant digital health, built end to end. The care model and the software behind it, designed to scale safely.

  • Compliant care platforms
  • Provider & patient flows
  • Build & operate
05

Media Buying

Paid acquisition the way owners do it. Tight tracking, honest attribution, and creative that converts across every major channel.

  • Paid social & search
  • Creative & landing pages
  • Tracking & reporting
06

Growth & Capital

For ventures we believe in we go beyond services, bringing operating capital, distribution, and a team that builds alongside you.

  • Operating capital
  • Distribution & partners
  • Hands-on support
01 / 06

AI Advisory

Strategy & applied build

Most teams know AI should be making them faster but stall on where it actually fits. We start by finding the highest-leverage places to apply it in your business, then we build them. No theory decks, working software.

From a single automation to a fleet of agents running real workflows, we ship systems your team can operate, and we train them to run it without us.

  • AI strategy & roadmap
  • Custom agents & copilots
  • Workflow automation
  • RAG & data pipelines
  • Model & vendor selection
  • Team training & enablement
Ideal forTeams adopting AI for the first time, or scaling a pilot into production.
02 / 06

Full-Stack Development

Web, mobile & platform

Senior engineering for products that have to work. We design, build, and ship web, mobile, and platform software, then stay on to keep it healthy.

The people who scope your build are the ones who write the code. No offshore handoffs, no juniors learning on your budget, no surprises at launch.

  • Web applications
  • iOS & Android apps
  • APIs & platform engineering
  • Cloud & DevOps
  • Product & UX design
  • QA & maintenance
Ideal forFounders and teams who need a senior product built right the first time.
03 / 06

E-Commerce Ventures

D2C, owned & partnered

We run our own direct-to-consumer brands and help founders scale theirs. From storefront to supply chain to paid growth, we know what moves revenue because we live it every day.

Engage us to build and operate a store, or to fix the parts that are leaking money. Either way you get operators, not theorists.

  • Shopify build & migration
  • Conversion optimization
  • Email & retention
  • Paid acquisition
  • Brand & creative
  • Ops & fulfillment
Ideal forConsumer brands ready to scale, or operators launching something new.
04 / 06

Telehealth

Compliant digital care

Digital health is hard because compliance, care models, and software all have to line up. We build the platform and the operating model behind modern care, end to end.

We can hand you a compliant, launch-ready product, or run it alongside you as a long-term partner.

  • Compliant platforms (HIPAA/GDPR)
  • Provider & patient portals
  • Scheduling & e-prescribing
  • EHR integrations
  • Care & intake workflows
  • Build & operate
Ideal forFounders and clinics launching or modernizing digital care.
05 / 06

Media Buying

Performance marketing

Paid acquisition the way owners do it: tight tracking, honest attribution, and creative that actually converts. We treat your budget like our own money, because on our own brands, it is.

We run the full loop, from creative and landing pages to scaling spend, with weekly reporting you can actually trust.

  • Paid social (Meta, TikTok)
  • Paid search
  • Creative & landing pages
  • Tracking & attribution
  • Budget & scaling
  • Weekly reporting
Ideal forBrands spending on ads who want a team obsessed with the P&L.
06 / 06

Growth & Capital

Partnership, not vendoring

For ventures we believe in, we go beyond services. We bring operating capital, distribution, and a team that builds alongside you, in exchange for a stake in the upside.

This is a real partnership, not a vendor relationship. We put our own resources on the line and we win when you win.

  • Operating capital
  • Distribution & partnerships
  • Go-to-market
  • Hands-on operating support
  • Hiring & team building
  • Long-term partnership
Ideal forAmbitious founders looking for a partner, not just a vendor.

How we engage

A clear path from idea to scale.

No mystery, no bloated process. Four steps, senior people on every one of them.

01

Scope

We learn the business, pressure-test the goal, and agree on what success looks like before any code.

02

Design

Architecture, brand, and product design in parallel, so the build starts on a foundation that holds.

03

Build

Senior teams shipping in tight cycles, with you in the loop the whole way. No black boxes, no offshore handoffs.

04

Launch & scale

We go live, then stay on to grow it: performance, iteration, and capital where it makes sense.

Why Stack Margin

Built like operators, not an agency.

Most firms sell hours. We run our own companies, so we know what actually ships and what actually sells. That perspective is what you hire us for.

Owners, not vendors

We run our own ventures, so we treat your numbers like our own. Skin in the game, not a billable hour.

Senior by default

The people who scope the work are the people who build it. No juniors learning on your budget.

One roof, end to end

Strategy, design, engineering, and growth under one team. Fewer handoffs, faster shipping.

Built to compound

We optimize for what still works in a year, not what demos well this week. Durable over flashy.

6
Disciplines under one roof
2
Continents operated across
100%
Senior-led delivery
∞
Skin in the game
Stack Margin

Ventures

We don't just advise. We own.

Alongside client work, we build and back our own companies across several markets. It keeps us honest, and it keeps us sharp.

E-commerce / D2C

Consumer Brands

Owned and co-built consumer brands shipping across the US and EU.

Vertical software

Construction SaaS

A full operating platform for trade businesses: CRM, projects, quoting, invoicing.

Supplements / telehealth

Health & Wellness

Science-led wellness products and the digital care models around them.

Applied AI

AI & Tooling

Internal agents and automation we build for ourselves, then productize.

FAQ

The questions we get asked most.

Are you an agency, a studio, or a fund?

All three, depending on the venture. We deliver services like a senior studio, we build and own brands like an operator, and for the right partners we put in capital. You can engage us for any one of those.

Do you charge fees or take equity?

Usually fees for defined project work, and equity or a revenue share when we go deeper as a long-term partner. We are happy to structure a blend that aligns both sides.

What size projects do you take on?

From a focused build for a single founder to a multi-quarter platform for an established company. If it is technically interesting and the people are serious, we want to hear about it.

How fast can you start?

Scoping usually begins within a week of the first conversation. Build kickoff depends on the engagement, but we move quickly once the goal is clear.

Where are you based?

We operate across Europe and the US, with teams set up to work async across time zones. Most engagements are fully remote.

How do we start a conversation?

Tell us what you are building and what is in the way. We will come back with an honest read on whether we are the right team and how we would approach it.

Get in touch

Tell us what you're building.

Whether it's a product to ship, a brand to scale, or a venture to build together, we'll give you an honest read on how we'd approach it.

Or email us directly at hello@stackmargin.com