How to grow a B2B SaaS company in the UK

Why SaaS growth stalls after the first customers

The first customers usually come from the founder's network and the founder's own selling. That works until the network runs out. Forte Growth sees B2B companies stall between £500K and £5M in revenue, and in SaaS the reason is often the same: pipeline still depends on one person, and nothing has been built to replace them.

Hiring into that gap rarely fixes it on its own. An SDR or a head of marketing inherits whatever exists. If there is no tested message, no list and no process, their first months go on building those, on a salary.

Three mistakes to avoid

• Selling to every company the product could serve, instead of the one segment that buys fastest.
• Hiring before the message works, so a new SDR repeats a message that has never booked a meeting. The trade-offs are in should we hire an SDR.
• Running content and outbound as separate projects, so a prospect who looks you up after a message finds nothing that backs it up.

What to build first

Forte Growth's order is to find where pipeline breaks before adding activity. In the first month that means a pipeline audit, then the first segment, the message and the proof behind it, and a list checked before anything is sent. The first outbound, on email and LinkedIn, goes live inside three weeks.

Alongside it come founder content that makes the outbound land, a CRM that tracks every reply so nothing is lost after a demo, and a written sales process, so the founder is no longer the only person who can close. What that function covers in full is on the outsourced marketing department page.

What happened at Wyzr

Wyzr, a fintech SaaS company, had the product and the domain expertise but no bandwidth to run go to market, so outreach happened in bursts, without a stable list or follow-up. Forte Growth built the motion, improved it and ran it. From a standing start it produced 17 booked calls and 53 interested leads in under 30 days of outreach. The full story is in the Wyzr case study.

Aether, a legaltech company with no marketing function, had a full one in one month, built instead of hired.

Alper Yurder's own SaaS record

Before founding Forte Growth, Alper Yurder co-founded Flowla, a VC-backed SaaS company, and took it to £1M ARR with £0 spent on paid ads. Founder content, SEO and warm outbound worked as one system. That is his own operating record, not a Forte Growth client result, and it is why Forte Growth puts the message before the media budget.

How Forte Growth works with SaaS companies

Forte Growth builds and runs go to market and marketing for B2B startups and scale-ups, from strategy to sales. It starts with a pipeline audit inside the first month, then the go to market strategy, then the build, with the first outbound live inside three weeks. You own what it builds, and you either hand it to your team or keep Forte Growth running it. Where a small team or an agency is already in place, Forte Growth directs them as one plan rather than replacing them.

Common questions

How do you grow a B2B SaaS company past £1M ARR?

Replace the founder's network with a pipeline the company owns: one first segment, a message that books meetings, a checked list, outbound, then content and a sales process someone else can run. Forte Growth builds it in that order, with the first outbound live inside three weeks.

Should a SaaS startup hire an SDR or a head of marketing first?

Build the system they will walk into first. A new hire inherits whatever exists, so a message that has booked meetings, a list and a written sales process should be in place before the salary starts.

How quickly can outbound start for a SaaS company?

At Forte Growth the first outbound goes live inside three weeks, once the segment, message and list are set. Wyzr reached 17 booked calls and 53 interested leads in under 30 days of outreach, from a standing start.

Does paid advertising work for early-stage B2B SaaS?

It can, once the message is proven. Before founding Forte Growth, Alper Yurder co-founded Flowla, a SaaS company that reached £1M ARR with £0 spent on paid ads, using founder content, SEO and warm outbound. Prove the message before you pay to amplify it.

What does a SaaS marketing team cost in the UK?

As a worked example, five UK marketing roles come to around £250,000 a year in London base salary, before employer National Insurance, pension, commission and recruitment fees. Not every company needs all five.

Sources

• Wyzr, Aether and Flowla figures: Forte Growth's live case studies and its claim register, read 14 October 2026.
• The £250,000 worked example uses the Robert Walters UK Salary Survey 2026, with exclusions as stated on Forte Growth's in-house team cost page.

Last reviewed October 2026.