Playbooks, guides and insights on all things GTM for B2B tech founders

How to show traction that investors trust with Richard Harley at Blackfinch Ventures

20 October 2025

In this edition of Cosmic Conversations, I sat down with Richard Harley, Ventures Director at Blackfinch Ventures. He helps oversee a portfolio of 40+ companies and invests alongside the deal team, typically backing businesses up to pre-Series A with cheques from £500k to £2m. 

Richard works with founders on the realities after the round. Fundraising, hiring, sometimes firing, and the day-to-day choices that shape early traction. 

You can watch the full conversion above or take in the best bits in the short summary of Q&As below. 

Q: What stages does Blackfinch back? 

Blackfinch invests up to pre-Series A with investments between £500k and £2m. We are sector-agnostic across software and deep tech. We usually avoid pre-seed unless it is deep tech with clear technical readiness.  

Once the deal team completes an investment, the company moves into the portfolio where my team helps on hiring, fundraising, and the operational challenges that come with growth. 

Q: What makes a founding team stand out at this stage? 

There is no single trait. I look for people who are genuinely close to the problem and ready for a multi-year journey. Sector expertise helps, but it is not required.  

What matters is clear insight into the pain and a willingness to build for five to ten years. Team shape also counts. A strong technical lead paired with a strong commercial lead beats a lone academic profile trying to learn sales from scratch. 

Q: What traction moves a deal forward? 

At Blackfinch’s entry point, we look for evidence of repeatable revenue rather than signals alone. That can be low hundreds of thousands in annualised revenue with healthy gross margins, early signs of retention, and a founder who understands the first twenty customers in detail.  

We rarely invest pre-revenue outside deep tech. For context, a UK Series A today often needs £2m to £3m ARR, which is a step beyond Blackfinch’s typical entry. 

Q: How do you asses AI value? 

AI is everywhere, and I expect teams to use it. The edge comes from applying current tools to a problem and layering unique data or workflow on top. Building new foundation models is hard for most UK startups unless they are academic spin-outs.  

The more compelling stories are productised applications of AI in areas like sales tooling or financial data analysis where the tech drives faster, better outcomes. 

Q: What are the most common post-raise mistakes? 

Two stand out, first is hiring a head of sales too early. Up to roughly £1m ARR, founder-led sales wins. If you do hire, write down the six-month outcomes you expect, check progress at three months, and pull the rip cord if they are not on track. The hidden cost is time, missed revenue, and momentum.  

Second, hosting costs. If you ignore them, they scale faster than revenue. Put the right expertise in early to avoid an expensive surprise. 

Q: Profitability vs growth, does it matter at Seed and pre-A? 

Not for Blackfinch. If you are profitable and growing fast at this stage, I would question whether you need venture money at all. The focus is on building a repeatable engine with strong margins and retention, not near-term profitability. 

Key takeaways 

  • Founder-led sales usually beats an early senior hire up to around £1m ARR. 
  • Treat AI as an accelerator for problems. 
  • Show repeatable revenue, healthy gross margins, and early retention signals. 
  • Deep tech can be earlier but demonstrate real technical readiness. 
  • Write six-month outcomes for senior hires and review at three months. 
  • Watch hosting costs from day one. 
  • Series A expectations in the UK are closer to £2m–£3m ARR today. 

If you enjoyed this conversation with Richard, check out our other recent Cosmic Conversations with leading VCs. 

Connect with Richard Harley on LinkedIn and find out more about Blackfinch Ventures

Helping founders build and scale go-to-market teams

We offer pro bono reviews to founders to solve a host of common founder challenges.

No matter which review you choose, it will be specific to you, delivered by someone experienced, to give you tangible, actionable outcomes.

Get started
Founder Review Tabs
View more
Q4 Cosmic Collective Social

Q4 Cosmic Collective Social

​Share experiences and learn from peers who are navigating similar obstacles.

Q1 Cosmic Collective Dinner

Q1 Cosmic Collective Dinner

Join us over dinner as we bring together founders looking to scale their B2B SaaS business.

Why founders should lead sales until £1m ARR

Why founders should lead sales until £1m ARR

Richard Harley

Ventures Director, Blackfinch Ventures

Revenue speaks louder than any pitch

Revenue speaks louder than any pitch

Oli Hammond

Partner, Fuel Ventures

Metrics that differentiate Seed & Series A businesses

Metrics that differentiate Seed & Series A businesses

Akshat Goenka

Partner, Moonfire Ventures

The role of AI in a revenue function

The role of AI in a revenue function

Mark Walker

Founder, Revved Up

Nobody cares about your product

Nobody cares about your product

Ben Miller

Fractional CRO

Stop trying to build perfection

Stop trying to build perfection

Anthony Rose

Co-Founder, Seed Legals

Why founders should lead sales until £1m ARR

Richard Harley -

Ventures Director, Blackfinch Ventures

Revenue speaks louder than any pitch

Oli Hammond -

Partner, Fuel Ventures

VC viewpoint: When to transition from founder-led sales

Kiran Mehta -

Former VC

Your first steps to nailing your sales process

Scott Leese -

Fractional CRO

Metrics that differentiate Seed & Series A businesses

Akshat Goenka -

Partner, Moonfire Ventures

The role of AI in a revenue function

Mark Walker -

Founder, Revved Up

Nobody cares about your product

Ben Miller -

Fractional CRO

Stop trying to build perfection

Anthony Rose -

Co-Founder, Seed Legals

The importance of founder-led sales

Kiran Mehta -

Former VC