About

We help tech businesses regain growth after initial traction and revenue plateau

+93%

Retention increase

$140m

Achieved for clients

35+

Years of joint experience

The team

Our winning partnership

Simon Hook

Co-founder of Building Great Tech

I help founders unlock their products' full potential. Twenty years in product-led growth.

I've tripled user bases, achieved 93% renewal lifts, and supported two exits (£41m, $87m). Clients include Barclays, Rolls-Royce, Bloomberg, and Shell Energy. Utilising deep ideal customer profile work that drives tangible business results.

Connect on LinkedIn

Anastasija Krysa

Co-founder of Building Great Tech

Not sure what's blocking your growth? Or you suspect something but want to validate it first?

For 15 years I've worked with Apple, BBC, Trading View, Orange, T-Mobile, EE, Sopra Banking, Insight Investment, ADSS and other businesses in the London tech scene to uncover friction points and help make validated product decisions to enable growth.

Connect on LinkedIn

Method we use

Product Profit System

This method helped clients increase conversion by 156% and generate $140M+ by fixing what was actually broken.

→ Make your messaging & positioning clearer
→ Identify exact reasons causing churn
→ Uncover hidden market oppurtunities

Get In Touch

Launched No.1
Tech Podcast in the UK
'Building Great Tech'

Unfiltered conversations with tech pioneers who are reshaping the digital landscape.

Check out on Spotify ⇢

Watch on Youtube ⇢

Listen on Apple Podcast ⇢

Collaborative workshops

We run digital product strategy workshops focusing on tech businesses and optimising conversion, retention and product-market fit.

Get In Touch

Our Clients' Wins

Client recommendations

“We are very pleased with the overall results. We have 781 global reviews in the iOS app store with an average rating of 4.9. In addition, basic renewals have increased to over 93%”

Elizabeth Green
CEO of Plumbs

“Anastasija helped us with audit of our website and flow. Her insights were very useful and helped us discover user blockers.”

Constantin Ivanov
Founder of TradingView

“It was a pleasure working with Simon. He changed a lot of things in a short space and we are better for it”

Jason Gill
Spotify

“Simon’s commitment to the customer experience is unwavering, his domain expertise is frankly staggering ”

Aleem Chowdhry
Vice President at JPMorgan

“Anastasija’s insight and expertise allowed us to deliver a high quality product through clear, well thought-out solutions.”

Mark Wickstead
Product at Zoopla

“Simon brought a breath of fresh air to a typical Online/Comms team collaboration with clearly defined process ”

Sarah Smith
Marketing Lead at Three Mobile

“Simon's experience was invaluable when it came to prioritisation, he considered the development implications of each decision, allowing us to move quickly. ”

Matthew Arnold
Product Director at Brain in Hand

“Anastasija is a rare and remarkable find – a strategic, talented and highly regarded creative leader”

Aleem Chowdhry
Vice President at JPMorgan

“Simon's got an inquisitive design mind, that gets interested in the challenge and asks about the things that others might have missed. ”

George Kean Proudfoot
The App Business (TAB)

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Frequently asked questions

Get answers to common questions about our digital product services.

How much does this cost?

It depends on the scope. We'll give you exact pricing after understanding your specific situation during our first call.

How long does this take?

- Platform Diagnostics: about 2 weeks
- Diagnostics + Fixes: 4-8 weeks
- Strategic Advisory: ongoing support

Is this worth it if we already think we know what's broken?

Our method reveals the real issue often saving you 3-6 months of building the wrong thing. It's worth validating before committing dev resources so you can make decisions with confidence.

Do we need to provide the users/testers?

If you have existing customers willing to talk (power users, churned users, waitlists. social) we can move faster. Otherwise we will help you source them via other channels.

Can our team be involved and learn from this?

Absolutely. Most clients want their product/design people to observe sessions and learn the method. We encourage it - builds internal capability. We also include your lead dev early to avoid "looks great but can't build it" issues.

What's the first step if we're interested?

15-min call to understand your situation → we send you a specific proposal with pricing/timeline/scope. No pressure, no hard sell.
We can start within 3-5 days.