3x founder

William Fairbairn

Helping CFOs hire Zalos AI workers to run finance departments

Co-founder

Zalos· Fall 2025🇺🇸 United States

in LinkedIn

2025Co-founder· Zalos (YC F25)

Founder · since 2013

Company

Zalos (YC F25)

Role

Cofounder

current

Stage

—

no public source

Raised

—

no public source

Based

London

current

Founder / co-founder — the company's markEmployee / research role

Source: LinkedIn work history

Profile coverage5 of 7 · missing posts, contact

Zalos

Computer Agents for Finance tasks like reconciliation, in your system!

Fall 2025

Experience

Career

Zalos (YC F25)
Co-founder
Cofounder · London · 2025 – Present
2025
Agicap
UKI General Manager · 2023 – 2024
2023
McKinsey & Company
Engagement Manager · London, United Kingdom · 2019 – 2023
2019
Kearney
Associate · Greater London, England, United Kingdom · 2015 – 2019
2015
Fabrik
Co-founder
Co-Founder · Cambridge, England, United Kingdom · 2016 – 2018
2016
HowCloud
Founder
Founder · University of Warwick · 2013 – 2014
2013
Warwick Finance Societies
President · University of Warwick · 2013 – 2014
2013
The Prince's Trust
Programmes & Development · London · 2014
2014
Barclays Investment Bank
Investment Banking · London · 2013
2013

Bio

William was UK General Manager at Agicap, one of the leading ‘Office of the CFO’ startups in Europe (valued at ~$800m), where he doubled the team in 1.5 years. He previously was in McKinsey Tech practice, and built & sold a bootstrapped B2B SaaS.