Fractional CMO and Growth Lead for DACH companies

    A new kind of growth partner.

    Hi, I'm Simon Roser, a Marketing & Growth Lead for hire based in Berlin. My mission? To partner with ambitious companies and build their custom tailored growth systems that stay in-house, long after I'm gone.

    How? I deliver hands-on support on foundations, data, and key digital channels, while bringing the strategic perspective of a fractional Marketing Lead. I've built my own brand (KNUS), and have scaled 100s of high tier Google Ads Accounts during my ~5 years at Google itself.

    My jam? Cutting through the noise, aligning the chaos, and empowering your team with the data & principles needed to keep that growth momentum rolling. Outcomes first. Always.

    Let's grow?

    Their potential for growth is my motivation.

    Google Ads, 1-1 Coaching and "GaaS"

    What's on the menu for today?

    Google Ads: +10% ROI in 30 days

    Beyond basic clicks. Leveraging my X-Googler experience across 500+ high-growth cases, I build and optimize campaigns focused purely on measurable ROI. We ensure your data stays in-house, empowering your team with real learnings for lasting success.

    Invest: from 2550€ per month

    Learn More

    1:1 Strategic Sparring

    Need a partner who understands the whole puzzle? Drawing from building my own ventures (like KNUS) and fractional CMO roles, I provide holistic guidance based on multiple years of experience across sales, marketing, and (digital) strategy.

    Rate: from 225€/h, pro-bono available

    Book a Session

    Growth-as-a-Service

    For ambitious companies needing a complete inbound engine overhaul – from core messaging and ICP definition to a ready-to-scale website and initial campaign setup. Let's define your unique blueprint for lasting inbound success together.

    Custom to your needs

    Discuss a Custom Plan
    Expertise
    Roser Growth

    Roser Growth

    Current venture

    ·

    Est. 2023

    Building marketing foundations that last. I help pre-Series B companies create stellar in-house marketing teams that thrive long after I'm gone by transferring expertise, not just executing campaigns.

    You're already here

    SANE/REBELS

    SANE/REBELS

    Current venture

    ·

    2025

    Productize your expertise. Keep it human. We help capped experts scale their wisdom without losing authenticity - using technology as a bridge, not a wall.

    sanerebels.com →

    KNUS Textiles

    KNUS Textiles

    Closed venture

    ·

    2020-2025

    Sustainable weighted blankets for better sleep. Heavy on you, light on the planet. Five years of building from zero: incorporating, branding, hiring, sourcing production, sustainability certifications, finances, German bureaucracy... the full founder crash course.

    myknus.com →

    Past Experience

    Past Experience

    Professional journey

    ·

    2016-Present

    My professional journey includes roles at:

    • StartupX Program Manager (20%) at Google Germany (2021-2022)
    • Accelerated Growth Executive at Google Ireland (2018-2023)
    • MSc. Management (focus: Entrepreneurship & Psychology) at ESCP Europe (2016-2018)
    • BSc. Business Admin. (focus: Strategy & Psychology) at LMU Munich (2012-2015)

    Beyond Ads: Build a Sustainable Growth Engine.

    Stop settling for fragmented campaigns. Let's build a holistic, data-driven growth engine powered by smart strategies and automation, ensuring your team gains the skills for lasting success.