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Fractional CMO &
Interim CMO for B2B SaaS

Senior marketing leadership that delivers revenue results, not just activities. Accelerate growth without full-time overhead or hiring risk.

Let’s talk about your growth goals.

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Schedule a strategy call and see how hands-on Interim CMO leadership keeps marketing and sales aligned.

Why B2B SaaS Companies Choose Katja First

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Katja is a great Marketing Executive who was managing our entire Marketing and lead machine for a year. Helping fine-tune our operations in mature markets and also work to establish new programs and initiatives in our newer markets. Her previous experience in SaaS HCM/HR was particularly valuable and she has worked with many of the leading Software products in the market.

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Erik Fjellborg

CEO, Quinyx

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I had the pleasure of working with Katja during her 9 months as our CMO at Yook, a fast-moving startup in the product carbon footprinting space. From day one, Katja impressed us with her rare ability to think strategically while staying incredibly hands-on — a combination that’s essential in an early-stage company.

I wholeheartedly recommend Katja for any leadership role where strategic insight, executional excellence, and a strong team-first mentality are valued. Any organization would be lucky to have her onboard.

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Varena Junge

CEO, Yook

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Katja is an energetic and talented marketing professional. She is an upbeat, motivating team leader who delivered well on challenging goals - such as the re-organisation of the DACH lead generation activities. Katja combines creativity and a strategic mindset with a results-oriented and pragmatic attitude. She performs well under pressure, is a real team player and keeps spirits up with her good mood. As a highly dedicated and proactive leader she especially shines in fast-paced environments and was well respected by her team, colleagues and senior management.

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Uli Beckmann

Partner, Zobito

For VC Investors: Accelerate portfolio growth with proven marketing leadership

Portfolio companies missing growth targets due to ineffective marketing spend? MOSQITO delivers immediate marketing expertise that understands investor expectations and enterprise value drivers.

When portfolio companies struggle with stalled pipeline growth, leadership gaps, or unscalable GTM operations, you need interim leadership that moves fast. With 20+ years scaling B2B SaaS companies, contributing to a $400M+ exit, and a decade of experience working directly with VC-backed startups and scaleups, Katja understands the unique pressures and timelines of venture growth. This means knowing exactly what investors expect at each funding stage, how to navigate board expectations, and which marketing initiatives actually accelerate traction. She quickly professionalizes marketing, implements scalable pipeline systems, and delivers measurable improvements that support fundraising milestones and sustainable growth.

Key Focus Areas of Interim CMO Support

Pipeline-Focused GTM Strategy

Move marketing from awareness campaigns to a predictable revenue engine with clear Sales and Product alignment. Create demand generation that delivers qualified opportunities, not just lead volume.

 

Example:

Transformed B2B SaaS marketing approach, implementing demand-focused campaigns that increased marketing's pipeline contribution from 5% to 40%.

Conversion Rate Optimization & Lead Quality

Diagnose conversion challenges and rebuild full-funnel systems that turn prospects into qualified opportunities.

 

Example:

Improved lead quality and increased MQL <> SQL conversion rates from 7% to 25% through systematic funnel optimization and enhanced lead scoring processes.

Marketing Function Development

Create marketing operations from the ground up with proven frameworks and systems. Establish strategy, messaging, and demand generation programs that scale.

 

Example:

Built complete marketing function including demand generation programs and engaging content strategies for early-stage startup.

Interim Marketing Leadership

Bridge the gap when your CMO goes on parental leave or leaves and you're not ready for a full hire. Keep growth momentum while recruiting the right permanent leader.

 

Example:

Led team through challenging transition, achieving significant NPS improvement despite pandemic disruption.

Our Process

Week 1-2

Marketing audit and strategy alignment

Week 3-4

Campaign builds and team integration

Week 5+

Execution, optimization, and scaling

Start now...

...and accelerate your growth journey

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What You Get

  • Strategic Leadership 
    Pipeline-first GTM strategy, positioning, and cross-functional alignment across your revenue team
     

  • Hands-On Execution
    Campaign builds, funnel optimization, and direct implementation that converts prospects to customers
     

  • Revenue Accountability
    Leadership that tracks pipeline, CAC, and conversion rates - not just impressions and clicks
     

  • Complete Ownership 
    One expert responsible for both strategy and execution

FAQs

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