Marketing & growth consulting, fractional CMO, product strategy, workshops and SEO websites that measurably generate leads. Since 2008 as a founder, CMO & CPO — from the first landing page to €110M in revenue.
From the website that gets found to the strategy that scales — all from one hand, built on 18 years of hands-on experience.
Websites that don't just look good but rank and generate leads — built from a marketing and SEO perspective. This page is the proof.
Build a website · Build a landing page · Cologne & remote Learn more → 02Growth marketing, OKRs & scaling — practical, for teams and leaders. No slide theatre, just methods from real scaling journeys.
Marketing workshop · OKR workshop · Scaling keynote Learn more → 03Fractional CMO, go-to-market and data-driven growth. From product-market fit to scalable acquisition — hands-on, not consultant theory.
Fractional CMO · Go-to-Market · Growth Learn more → 04Build digital products, set up agile teams, digitalise processes. As a CPO I scaled tech organisations to 60+ people.
Digitalisation · Product Strategy · Agile / Scrum Learn more →Every number comes from real action — as a founder, managing director and hands-on marketing and product lead.
Walk-in concept for health & beauty treatments with its own app. Responsible for marketing, product and tech — from brand to digital funnel.
Built two digital ventures at the energy market leader: fully digital B2C sales for wallbox, charging solution & energy tariff — 500–1,000 new customers per month, purely digital.
Built Germany's largest digital platform for flexible work: from 0 to €110M revenue, from 2 to 400 employees, 23 locations. Scaled the product & tech org to 60+ people and seven Scrum teams. Jobmensa = leading student job board with ~35,000 applications/month.
Built a joint venture: 1,000+ students, ~100,000 automated property valuations per year. Successfully sold to Sprengnetter in 2012.
Investments in wundertax, Homelike and Kehrtour, among others — HealthTech, PropTech & B2B SaaS.
1st place thinc!cup business plan competition · Finalist, European Business Plan of the Year (Ghent).
Digital health & beauty platform with walk-in lounges and its own app. Building brand, product and performance marketing.
Website →Two digital ventures (wallbox, energy) at the market leader for solar & heat pumps — scalable B2C online sales across Germany.
Website →From 0 to €110M: Germany's largest digital platform for flexible work. SEO, SEA, content & product from one hand.
Website →The story behind Germany's largest platform for flexible work — from student job to staffing giant.
Read the article →Profile and video interview on founding, leadership and the growth of Studitemps.
To the profile →Interview on the digital business model, resilience and leadership in challenging times.
Read the interview →How Studitemps navigated the 2020 crisis — with marketing, sales and adaptability.
Read the interview →Benjamin Roos on building and scaling Studitemps.
Watch the video →After twelve years, Roos and Wels hand over operational leadership — a look back at the journey.
Read more →Startups and scale-ups that want to take marketing, product and growth to the next level — with a sparring partner who has done it himself.
Established companies that want to become more digital, faster and more data-driven.
Who want to book a workshop or keynote on growth, OKRs or scaling.
Who need a website or landing page that actually gets found and generates leads.
I help companies market and scale digital products — as a marketing & growth consultant, a product/digital sparring partner, through workshops, and by building SEO websites that measurably generate leads.
Because a website is only worth something if it gets found and generates leads. I build websites from a marketing and SEO perspective — not as pure design. This page is the best proof.
Both. I'm based in Cologne and work across the DACH region and remotely — internationally in English. Workshops are delivered on site too.
With a short, no-obligation call. Afterwards you get a clear assessment of what makes sense — and what doesn't. I usually reply within 48 hours.
Website, workshop or consulting — tell me briefly what it's about. No obligation, usually a reply within 48 hours.