About
Partners, not consultants
10+ years in scale-ups and start-ups. Not as external consultants — as part of the team. Now we do it for you.
Our story
We've sat on your side of the table
COO, CFO, Strategy Director — we've built and scaled new business models, turned around unprofitable markets, and cut acquisition costs by 90%.
We know what it feels like to make decisions under pressure — with incomplete data, competing priorities, and a board that wants answers. That's exactly why we founded Arc Partners.
Hands-on, until it runs.
Team
Colin & Felix
Colin Deitert
Co-Founder
Colin brings deep expertise in funnel analytics, growth strategy, and P&L management from years of scaling high-growth companies. He's worked across marketing, sales, and finance — giving him a rare end-to-end perspective on how growth actually works.
Felix Plastrotmann
Co-Founder
Felix combines analytical depth with operational experience. He's led teams through the reality of rapid scaling and specialises in forecasting, goal-setting, and building the steering rhythms that keep growth on track.
Principles
How we operate
Transparency first
We build for clarity, not complexity. If a metric doesn't change a decision, we don't track it.
Operators, not consultants
We've lived the problems we solve. Our advice comes from having sat in the same chair as our clients.
Built to hand over
We design systems your team can own. Our goal is to make ourselves unnecessary as quickly as possible.