Buzzacott advises Astra Holding on its acquisition of AB Key
2 Dec 2025 • Corporate Finance • Real Estate and Construction • Transaction Services

We are delighted to announce that Astra Holding (Astra) have acquired AB Key LLP (AB Key).
Overview of the deal
Working alongside other professional advisors, we provided a full service, starting with financial and tax due diligence before moving into negotiating the locked box and reviewing relevant sections of the SPA.
The team was made up of George Thresh, Alex Judd, and Lee D’arcy.
Who are the firms involved?
AB Key is a specialist provider of maintenance services across London and the Southeast. AB Key brings deep expertise across multiple service lines, including but not limited to access control, door entry systems, glazing, CCTV, alarms and automated gates.
For many years, AB Key has supported estates, property managers and developers with the maintenance, repair and installation of key systems and security infrastructure. This partnership marks an important milestone in Astra’s strategy to build a diversified portfolio of profitable UK SMEs that provide essential services to the built environment.
Astra specialises in partnering with and supporting the growth of, UK-based industrial and service businesses. Many of these companies, like AB Key, have been built over decades and play a critical role in keeping buildings safe, compliant and operational. Astra’s approach is to support the growth of these businesses through investments and innovation, while preserving their identity and culture.
Under the new partnership, Astra will work closely with entire AB Key team to guide strategy, support customer relationships, and help drive the next stage of growth.