Your post-sales shouldn't feel like luck.

I help B2B SaaS founders turn post-sales from a founder headache into a growth engine. The CS function, the playbooks, the commercial motions that make retention and expansion predictable.

Let's talk →

Sound familiar?

×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

What good looks like

✓Renewals are predictable. No ARR drag.
✓Expansion drives supercharged growth.
✓Strong customer references accelerate sales.
✓Clean metrics when you meet investors.
✓Your CS function runs without you.

The natural response — and a better path

Option A
Senior CS Hire
Hasn't built from scratch
Often a manager, not hands-on
Wants seniority fast — decisions less objective
Hunger is hit and miss
£200–250K + £30–50K recruiter + large equity
Risk: huge investment and 12+ months wasted if it's the wrong hire
Option B
Promising IC
Great at today's job, working directly with customers
Grows with the company
Super hungry, half the cost
£100–150K all-in, less equity
Blocker: has never built a CS function from scratch
The better path
IC + Upside
Blueprint, playbooks, and operating model built by someone who's done it
Experienced coaching for the team to help them grow in their roles
Neutral expert builds it right — no internal politics
20–40% cheaper in Y1 vs Option A
Solves today's problem and tomorrow's
Lower risk — you keep the framework
See how it works →

Built on a decade of doing this for real.

Before Upside, I spent nine years at a cybersecurity scale-up building their Customer Success function from nothing. No team, no playbooks, no commercial ownership of post-sales. I built a team of 50 (every leader developed internally), grew expansion revenue by ~120% in two years, and helped scale the business from ~$5M to nearly $1B ARR.

$5M to ~$1B
ARR growth journey
0 to 50
CS team built internally
~98% to ~107%
Net revenue retention
~120%
Expansion ARR growth
Read the full story →

If post-sales is keeping you up at night, let's talk.

No pitch, just a conversation.

tom@upsidecs.co.uk | +44 7970 346877