"60 minutes and I walked out with an actionable memo that closed weeks of internal debate on channels. No fluff, just judgement and data."
CMO (anonymous)
B2B SaaS · Series A
Discovery callOutside judgement from a fractional CMO with 12+ years in Seed → Series B startups. Bi-weekly sparring, board memos and async support — with equity (FAST) or cash retainer.

What you get
Formats
Long-term engagement
Monthly retainer, advisory shares, or both
I only work under a single format: a long-term, ongoing engagement built to hit metrics. Bi-weekly or monthly sessions, board memos and async support. Compensation via monthly retainer, advisory shares (FAST agreement, 2-year vesting), or a mix of both.
Who I advise
I work with founders, leadership teams, boards and VC funds that need outside judgement on marketing and growth decisions — without a full-time commitment.
Right now
Most advisor roles are confidential. I share vertical and stage for context, not names.
B2B SaaS
Series A · UK
AI Platform
Seed · EU
Marketplace
Pre-seed · ES
VC Fund
Early-stage · EU
What's included
Equity advisor roles and cash retainers include the same support stack. The discovery call includes a final memo with conclusions.
Bi-weekly or monthly 1:1 sparring
Board memos and pre-board prep
Marketing diligence playbook
Signed FAST agreement and NDA
Access to operator and investor network
Async support between sessions
Hire scorecards and interview support
Quarterly KPI reviews
By the numbers
30+
Startups advised
12
Years of experience
Seed → B
Stages covered
5★
Average rating
Where I advise
Marketing diligence on deals and ongoing support to portfolio companies.
Formal advisor roles with FAST agreement and board memos.
Growth and GTM sessions with accelerator cohorts and syndicates.
Testimonials
Real quotes from people and teams I work with. Some sign their name, others stay anonymous for confidentiality.
"60 minutes and I walked out with an actionable memo that closed weeks of internal debate on channels. No fluff, just judgement and data."
CMO (anonymous)
B2B SaaS · Series A
Discovery call"As a fund, we hired Ruben to run marketing diligence on deals and support portfolio. He saved us from bad bets and accelerated the good ones."
Partner (anonymous)
VC Fund · Europe
Monthly retainer"His pre-board memos gave us a new way to communicate marketing to the board. The highest-leverage equity advisor we've had."
CEO (anonymous)
Marketplace · Seed
Equity advisorFAQ
Everything you usually ask about formats, equity vs cash, conflicts of interest and what the first month looks like.
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