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Fractional CMO for B2B AI & SaaS

Enterprise GTM rigour, on a startup clock. For B2B AI and SaaS founders who've crossed $2M ARR and need a marketing engine the next round can underwrite.

Go-to-Market Strategy • Messaging & Positioning • Launch & Scale • Fractional CMO Expertise Go-to-Market Strategy • Messaging & Positioning • Launch & Scale • Fractional CMO Expertise

The Problems I Solve

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We hit $2M ARR and growth just stalled.
 

Product-led acquisition plateaus. The playbook that got you to $2M won't get you to $10M. 
You need the enterprise motion

Read the Case Study
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The next round wants to see a real GTM engine.

Founders who built marketing as tactics now need a system investors can underwrite: pipeline velocity, CAC, LTV, repeatable motion.

VC Grade GTM
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Product, marketing, and sales are pulling in three directions

Each team optimises its own metric. No one owns the customer. The CMO-as-architect role is missing.

Align here
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four ways to work with me

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    The GTM Diagnostic

    Built for founders and CEOs between $1M and $5M ARR who suspect something is wrong with their GTM but haven't yet named it and who want diagnosis from someone with enterprise marketing rigour before they commit to a retainer.

    REQUEST THE DIAGNOSTIC
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    THE 90-DAY GTM BUILD

    Built for B2B AI and SaaS companies at Series A or post-seed traction ($2M–$10M ARR) who've outgrown founder-led marketing and need an enterprise-grade system that can scale from product-led to sales-led motion , fast.

    START THE SPRINT
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    THE FRACTIONAL CMO PARTNERSHIP

    Built for Series A–B B2B AI and SaaS companies ($5M–$20M ARR) preparing for a significant raise, entering new markets, or rebuilding a marketing function  and who need a CMO but can't justify the full-time hire yet.

    EXPLORE THE PARTNERSHIP
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    PORTFOLIO GTM PARTNER

    Built for Seed and Series A investors whose portfolio companies are bottlenecked by marketing maturity and who want an operator, not an LP workshop

    REQUEST A FUND BRIEFING
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brand identity and positioning development

100+ Tips and Tricks

Insights, case studies, and strategies that drive measurable growth

Explore articles, success stories, and case studies that highlight how MarketBoost drives measurable growth for AI and tech startups.

Frequently Asked Questions

  • A fractional CMO provides senior marketing leadership without the cost of a full-time hire, helping startups access expertise on a flexible basis.

  • We primarily work with tech and AI startups looking to refine positioning, attract investment, and scale into new markets.

  • Instead of executing tasks in isolation, we work as part of your leadership team, aligning strategy, messaging, and execution with investor expectations.

  • From Seed to Series B+, we guide founders through product-market fit, go-to-market strategy, and scaling to category leadership.

  • Yes. While our focus is startups, we also support enterprises launching innovative products or entering new markets.

  • We focus on measurable outcomes, pipeline growth, customer acquisition, revenue expansion, and investor readiness benchmarks.

Meet your Fractional CMO 

Claudia Crangasu

My mission is to bring more innovation to market. I believe we all win when new ideas enter the world, creating opportunities for employment and solving real problems.

I come from a strong corporate environment where I was trained in the best frameworks and strategies to launch innovation and achieve scalable growth, and today I work with category leaders.
 

As Product Marketing & Strategy Leader with over 18 years of bringing innovation to market for top players (Vodafone, Worldpay, Farfetch, Paysafe) , I've launched 70+ products, led product-led growth programs generating over $16M in enterprise opportunities and 10,000+ new leads across fintech and e-commerce, and built two high-performing departments across four countries.

I hold an MBA from ESE and an Artificial Intelligence Certificate from Oxford. A multilingual leader and startup advisor in tech and retail, I'm passionate about turning bold ideas into category leaders.

Claudia Crangasu, fractional CMO and founder of MarketBoost
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