Advisory

    Strategic advisory for marketers who want to decide better, faster.

    Outside 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.

    30+ startups advised5 years experienceSeed → Series B
    Ruben Lozano, advisor

    Key Benefits

    • Strategic go-to-market advisory tailored to your stage and market
    • Growth channel validation and prioritisation
    • Marketing team structure and hiring recommendations
    • Board-level marketing insights and reporting frameworks
    • On-demand advisory with flexible engagement models

    One way to work with me as advisor

    Loading availability

    Long-term engagement

    Strategic advisor

    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.

    • Bi-weekly or monthly sessions
    • Long-term commitment focused on metrics
    • Board memos and pre-board prep
    • Async support between sessions
    • Retainer, advisory shares, or both
    Apply for advisor role

    Profiles who reach out

    I work with founders, leadership teams, boards and VC funds that need outside judgement on marketing and growth decisions — without a full-time commitment.

    Founders & CEOsBoardsCMOs & VPs of MarketingHeads of GrowthHeads of Demand GenVC partnersPortfolio operatorsAccelerators & syndicates

    Companies I advise today

    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 you get in an ongoing engagement

    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

    A decade advising founders

    30+

    Startups advised

    12

    Years of experience

    Seed → B

    Stages covered

    5★

    Average rating

    Engagement contexts

    Context

    VC fund advisory

    Marketing diligence on deals and ongoing support to portfolio companies.

    Context

    Startup advisory

    Formal advisor roles with FAST agreement and board memos.

    Context

    Accelerator office hours

    Growth and GTM sessions with accelerator cohorts and syndicates.

    What my advisees say

    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 advisor

    Frequently asked questions

    Everything you usually ask about formats, equity vs cash, conflicts of interest and what the first month looks like.

    Another question? Reach out.

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