Costas Demetriou is Chief Executive Officer of Wifinity, a leading UK provider of managed connectivity and digital infrastructure for complex, multi‑tenant environments.
Since becoming CEO in 2021 following a management buyout backed by private equity investors, he has led the transformation of Wifinity into one of the UK’s foremost independent connectivity providers, delivering mission‑critical services across defence, leisure, multi‑dwelling residential, corporate and offshore environments. Under his leadership, the business has expanded its capabilities, scaled its network infrastructure, and strengthened its position in specialist markets where traditional telecom models are less effective.
In 2026, Costas was appointed Chairman of Livebusiness Group, where he brings his experience in scaling and commercial transformation to support the growth of the business.
His appointment reflects a proven track record of leading organisations through periods of rapid expansion, including driving revenue growth and evolving businesses from early‑stage profitability to scaled performance, typically moving from ~£1m EBITDA to £10m+ platforms.
Prior to Wifinity, Costas built his career in finance and transactions, holding roles at KPMG and Capita, where he specialised in due diligence, corporate development and business transformation. He is a qualified Chartered Accountant and holds a degree from University College London.
Costas is known for combining strong financial discipline with a pragmatic, execution‑focused leadership style. He has led Wifinity’s evolution from a founder‑led business into a scaled infrastructure platform, backed by long‑term capital and focused on delivering reliable, high‑performance connectivity in mission‑critical environments.
