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Verticals / B2B SaaS

Interim CMO for Series A–D B2B SaaS

Rebuilding pipeline, ABM, and NRR for €1M–€50M ARR B2B SaaS. Operational from day one. Engagements from €5,000 to €25,000 per month.

By Joris van Huët · Updated 2026-06-15

The pattern

"Median B2B SaaS CAC payback stretched from 14 months in 2021 to 26 months in 2024, while NRR for top-quartile companies dropped from 130% to 112%. Both metrics need a CMO who has seen this cycle before." — OpenView 2024 SaaS Benchmarks

Pattern 1

CAC payback stretched from 14 months (2021) to 26 months (2024). Your CFO has noticed.

Pattern 2

PLG stopped scaling at €5M ARR. You need a sales-assist or product-led-sales motion now.

Pattern 3

Your stack has HubSpot, Salesforce, 6sense, Outreach, and Gong — and nobody owns the integration.

Pattern 4

Net Revenue Retention is the only number your board grades. Marketing is graded on MQLs. Misaligned.

What the engagement looks like

KPIs we manage
  • ARR growth
  • Net revenue retention
  • Pipeline coverage
  • CAC payback period
  • MQL→SQL→Win rate
  • Logo retention
Stack we operate
  • HubSpot
  • Salesforce
  • 6sense
  • Outreach
  • Gong
  • Common Room
  • Mutiny
Channels we manage
  • Content / SEO
  • LinkedIn Ads
  • Paid search
  • ABM
  • Partner marketing
  • Community

Recommended tier for B2B SaaS

Engagements at €15,000–€25,000/month — Agency management through full interim CMO. Move up or down the ladder as scope changes during the mandate. The full ladder is on the homepage pricing slider.

Verifiable analogue case: WeTransfer — where I scaled the enterprise advertising business and signed Apple, Tata Motors, and Under Armour. See the interactive CV for the verified track record.

Insights for B2B SaaS leaders

70 articles in this vertical — TOFU (awareness), MOFU (consideration), BOFU (decision).

Sept 2025

Marketing Budget Benchmarks by Stage (Seed → Series D B2B SaaS)

When to hire an interim CMO for B2B SaaS. Pricing, ROI, and decision criteria for €22,500/month engagements.

Sept 2025

Marketing Leadership Coaching After a SaaS Interim Engagement

When to hire an interim CMO for B2B SaaS. Pricing, ROI, and decision criteria for €17,500/month engagements.

Sept 2025

Negotiating the Interim CMO Contract for SaaS Founders

When to hire an interim CMO for B2B SaaS. Pricing, ROI, and decision criteria for €25,000/month engagements.

Aug 2025

The CMO Succession Plan for VC-Backed B2B SaaS

When to hire an interim CMO for B2B SaaS. Pricing, ROI, and decision criteria for €22,500/month engagements.

Aug 2025

The Agency-to-In-House Transition Playbook (B2B SaaS)

When to hire an interim CMO for B2B SaaS. Pricing, ROI, and decision criteria for €15,000/month engagements.

Aug 2025

Restructuring an Underperforming B2B SaaS Marketing Team

When to hire an interim CMO for B2B SaaS. Pricing, ROI, and decision criteria for €20,000/month engagements.

Aug 2025

Replacing a Departed CMO at a B2B SaaS: The 6-Week Playbook

When to hire an interim CMO for B2B SaaS. Pricing, ROI, and decision criteria for €25,000/month engagements.

Aug 2025

The Board Reporting Playbook for B2B SaaS CMOs

When to hire an interim CMO for B2B SaaS. Pricing, ROI, and decision criteria for €22,500/month engagements.

Aug 2025

The Full Pricing Breakdown of an Interim CMO Engagement (B2B SaaS)

When to hire an interim CMO for B2B SaaS. Pricing, ROI, and decision criteria for €25,000/month engagements.

Aug 2025

The Customer-Marketing Function: Building It Right

How B2B SaaS CMOs evaluate the customer-marketing function: building it right. Decision framework + 90-day plan from a 15-year interim CMO.

Aug 2025

Interim CMO vs Fractional CMO for B2B SaaS

When to hire an interim CMO for B2B SaaS. Pricing, ROI, and decision criteria for €15,000/month engagements.

Aug 2025

How to Structure Your B2B SaaS Marketing P&L

How B2B SaaS CMOs evaluate how to structure your b2b saas marketing p&l. Decision framework + 90-day plan from a 15-year interim CMO.

Frequently asked

What stage of SaaS do you typically work with?

Series A through Series D, €1M–€50M ARR. Sweet spot is post-product-market-fit, pre-Series-C, where the marketing function needs to industrialise but the founder is still doing the CMO work.

Do you replace ABM platforms like 6sense?

Rarely. We usually inherit the platform and audit whether it is being used at 20% or 80% of its capacity. Most engagements increase utilisation rather than swap vendors.

Can you hire a permanent CMO while running the interim?

Yes, at the €20,000–€25,000 tier. The interim engagement de-risks the executive search and gives you a known operator running the function while you find the right long-term hire.

What does the first 90 days look like for SaaS?

Days 1-30: pipeline audit, ABM audit, stack audit, written diagnostic. Days 31-60: channel reset, content roadmap, hiring plan. Days 61-90: agentic workflows live, first board-grade NRR dashboard, succession plan.

Ready to discuss your B2B SaaS mandate?

Five-minute intake, response within 48 hours. If we are a fit you have a written proposal within five business days. If not, I will say so and recommend an alternative.

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