Fractional & Interim

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
Global 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

Execution first,
strategist always.

I'm Matt. 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. Most of my clients come through referrals. I tend to be fairly booked. But 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 team. Wity me, you get someone who owns outcomes, drives decisions and builds capability. I deliver clarity and results.

Roles I like to 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 many times and I know exactly where it breaks.
Fractional or Interim
Head of Marketing / CMO
Positioning, demand generation, Go-to-market, , SEO or GEO. 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, RevOps, processes, and tooling that makes scaling actually stick.
Challenges I solve
Go-to-Market
Go-to-market
ICP, funnel design, sales enablement, pipeline. Most companies have both 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
Remote, self-organising teams, OKRs, async systems. Fast-growing companies inherit org structures they never designed. I help support and accelerate the model that fits where you're going.
Background

I've experienced the ups and downs of scaling.
More than once.

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

2007–2013
University of Amsterdam + early freelance
I started building while still studying. Early work in marketing and operations for Dutch tech companies. Figured out pretty quickly that execution beats theory.
2013–2020
Springest · Snappcar · Safesize
Embedded growth, marketing and management roles at Dutch startups scaling across Europe. Moved to Berlin and first exposure to self-managing organisations and Holacracy, which completely rewired how I think about teams and leadership.
2020–2025
Supporting companies around the world
Started to work self employed as a contractor. Supported companies all around the world to grow and scale. From startups with 10 employees to global players with billions of funding.
2025–now
NowFractional, contract, interim growth & strategy
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.