Fractional, Contract. Interim growth & strategy

I help startups
and scale-ups
grow faster.

Fractional Head of Growth, CMO, COO or Growth Marketer for startups and scale-ups that are serious about scaling. With more than seventeen years of experience across Europe, the US and Asia, I embed in your team, own the work and stay until it delivers.

17+ yrs experience
20+ companies supported
International experience
Matt Hallmann
Companies I've worked with
Holacracy
Springest
Holaspirit
Heartbeat Medical
Studytube
Dwarfs & Giants
Hotelchamp
Singularity University
DutchBasecamp
SafeSize
energized.org
MinuteTrack
Agileday
Boldare
DemaTrading.ai
SnappCar
About

Operator first,
strategist always.

I'm Matt. More than seventeen years inside tech startups and scale-ups: not consulting from the outside, but actually running things. Marketing, sales, operations. The messy intersection where strategy either turns into revenue or dies quietly in a slide deck.

I've built and led teams across Europe, the US and Asia, taken companies into new markets, and supported founders who needed someone to own the work and not just comment on it. I always make time for the right fit.

17+
Years in the field
20+
Companies scaled
3
Continents, active clients
What I do

What I do,
and how it works.

I work fractional or interim — embedded in your company as a genuine member of your leadership team. You get someone who owns outcomes, drives decisions and builds capability. Not a report. Not a recommendation. Results.

Roles I step into
Fractional or Interim
Head of Growth
Full ownership of growth — strategy, experiments, team and numbers. From seed to Series B, I've run this playbook and I know exactly where it breaks.
Fractional or Interim
Head of Marketing / CMO
Positioning, demand generation, go-to-market, brand. I've led marketing across Europe, the US and Asia — from early traction to structured scale.
Fractional or Interim
Head of Operations / COO
Fast growth without structure is just chaos. I build the operational backbone — OKRs, team design, processes, tooling — that makes scaling actually stick.
Challenges I solve
Go-to-Market
Go-to-market
ICP, funnel design, sales enablement, pipeline. Most companies have a marketing problem and a sales problem. They're usually the same problem. I fix both.
International Expansion
International expansion
Germany, Europe, Asia, the US. Market entry is harder than it looks on a slide — positioning, hiring, cultural fit. I've done it enough times to know what not to do.
Org Design
Team structure
Holacracy, self-organising teams, OKRs, async systems. Fast-growing companies inherit org structures they never designed. I help build the model that fits where you're going.
Background

Done it.
More than once.

Seventeen years of building alongside founders, across three continents and more than twenty companies. The pattern is always different. The fundamentals rarely are.

2008–2013
University of Amsterdam + early freelance
Started building while still studying. Early work in marketing and operations for Dutch tech companies. Figured out pretty quickly that execution beats theory.
2013–2016
SafeSize · Springest · Snappcar
Embedded growth and marketing roles at Dutch startups scaling across Europe. First exposure to self-managing organisations and Holacracy, which completely rewired how I think about teams and leadership.
2016–2019
Berlin startup ecosystem
Moved to Berlin to support the German and European startup scene. Helped Dutch companies enter the German market. Coached teams on Holacracy, OKRs and self-organisation.
2018–now
Singularity University · DutchBasecamp · Mentor
Mentoring founders and young entrepreneurs on growth, leadership and the future of work. Helping people be better humans, not just better at business.
2019–now
NowIndependent practice
Fractional and interim growth leadership for tech startups and scale-ups globally. Clients have included Wefox, Heartbeat Medical, Billennium, Holaspirit and others. Based in Amsterdam, working across Europe, the US and Asia.
Writing
Let's talk.
No pitch, no deck.

If you're a founder who's hit a growth ceiling, a team scaling faster than your structure can handle, or a company about to enter a new market — I'd like to hear about it. Most of my clients come through referrals and I'm usually fairly booked. But the right fit is worth a conversation.