Build, fix, or scale your post-sales function.

Your sales motion is structured, repeatable, and measurable. Your post-sales function is still catching up. There’s no playbook for renewals, no clear ownership after the close, and no way to tell whether what you’ve built will hold as the customer base grows.

Not more headcount. Not a strategy deck. An operating model designed for the stage you’re actually at.

Let’s talk →

Sound familiar?

Building from scratch

×Renewals feel unpredictable and you’re still too involved

×Customers quietly disengage after signing

×No one owns post-sales revenue

×Churn and missed expansion are silently eroding your ARR

×Investors expect retention metrics you can’t show yet

Scaling what exists

×Post-sales isn’t scaling with the business

×NRR is underperforming and the root causes aren’t clear

×Renewals lack repeatability and accurate forecasting

×Ownership across renewals, expansion, and support is unclear

×Expansion is flat despite a growing customer base

What good looks like

Post-sales shouldn’t feel like luck. Renewals, expansion, and customer health should be predictable and systematic, not dependent on the founder or a few hero individuals.

✓Clear post-sales ownership with defined accountability

✓Predictable, proactive renewal forecasting

✓Board-confident NRR trajectory

✓Compound expansion growth

✓Scalable CS operating model with clean metrics

✓CS function runs without founder involvement

Three ways to work together

Upside meets companies wherever they are on the post-sales maturity continuum. The right engagement depends on what you need, not a rigid programme structure.

CS Leadership

Hands-on, part-time CS leadership. I own the function on working days, make the hard calls, and build or rebuild the operating model.

Best for: building CS from scratch, transforming underperformance, bridging to a permanent hire.

Targeted Advisory

Focused engagements around a specific problem or deliverable. Scoped to need, not a rigid multi-week programme.

Best for: renewal redesign, segmentation, hiring your first CS leader, investor-ready metrics.

Strategic Retainer

Ongoing strategic input after an initial engagement. Regular review cadence, sounding board, and pressure-testing as the company scales.

Best for: maintaining momentum after a CS Leadership or Targeted Advisory engagement.

See how it works →

Built on a decade of doing this for real.

Built the CS function at Darktrace from ~$5M to nearly $1B ARR. Team of 50, every leader promoted internally. NRR improved from ~98% to ~107%. Gross churn reduced from over 8% to ~6%. What worked at $5M broke at $50M. What worked at $50M broke at $500M.

$5M to ~$1B

ARR growth journey

0 to 50

CS team built internally

~98% to ~107%

Net revenue retention

~120%

Expansion ARR growth

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