Making property decisions easier to defend.
Proanex Ltd is a UK technology company. We build software that helps investors, lenders and advisers understand residential property, and show their working when they do.
To make the UK property market more transparent, by making every number in it traceable.
The UK publishes an extraordinary amount of property data: every sale, every energy certificate, every planning constraint. But it is scattered, inconsistent and hard to use, so decisions worth millions still rest on spreadsheets and instinct.
Proanex was founded to close that gap. We bring the records together, attach them to the property they describe, run the calculations in code you can audit, and use AI only to explain what the evidence already shows.
Early, and building.
We're a young company with a working product. Here's where we are.
Proanex Ltd incorporated
Registered in England and Wales, company number 17461523.
- 2026
Viiyoo platform built
Valuation, underwriting, area intelligence, document reading and deployment planning, built on open and official records.
- 2026
Viiyoo opens for early access
Property intelligence, underwriting, portfolio reviews and deployment plans for a first group of professional users.
- Next
Wider availability
More data sources, more of the UK covered, and Viiyoo opened to more teams.
How we work.
Evidence first
If we can't show where a number came from, we don't show the number.
Plain about uncertainty
Ranges, confidence levels and withheld figures are features, not failures.
Careful with data
We respect licences, keep customer data private to them, and collect as little as we need.
People decide
Our software finds, calculates and explains. Decisions, offers and advice stay with people.
Proanex Ltd.
Viiyoo is a product of Proanex Ltd. These details can be checked on the Companies House register.
View on Companies House- Legal name
- Proanex Ltd
- Company number
- 17461523
- Incorporated
- 16 September 2026
- Registered in
- England and Wales
- Company type
- Private limited company
- Registered office
- 72 Gordon Avenue, Stanmore, HA7 3QS, United Kingdom
- Product
- Viiyoo
- Contact
- hello@proanex.com
Let's build a clearer market together.
Investors, lenders, advisers, data partners and press: we'd like to hear from you.