Companies
Meet the exceptional UK companies thriving under Astra’s stewardship.
Case study
Interdoor Ltd
Acquired in 2024 — Hull, UK
Interdoor is a specialist in high-speed industrial doors, known for reliability, energy efficiency, and strong community ties. Founded in 2017 as a branch from Envirodoor, the company quickly established itself as a modern, customer-focused provider with deep roots in Hull.
When the founders looked to secure the business’s long-term future, Astra stepped in as the ideal partner. By acquiring Interdoor in 2024, we ensured the continuity of its reputation for quality while providing the capital, expertise, and support needed to scale further.
Since joining the Astra portfolio, Interdoor has continued to expand its customer base and strengthen partnerships with major UK brands. Just as importantly, its commitment to nurturing local talent — through apprenticeships and community engagement — remains a cornerstone of its growth strategy.
“Interdoor has completely transformed the efficiency of our warehouse operations. Their high-speed industrial doors are not only durable but also incredibly energy-efficient, which has significantly reduced our heating and cooling costs.”
Andrew Gill
Health & Safety Specialist, WM Morrisons
Case study
Acorn MPS
Acquired in 2025 — Leicester, UK
Acorn Mechanical Pipework Services (Acorn MPS) is a trusted provider of mechanical and electrical (M&E) building services, working across sectors like healthcare, higher education, manufacturing, and transportation. Since its founding in the 1980s by Bob and Linda Jarrom, Acorn has played a vital role in delivering critical infrastructure—most recently across major UK airports (Heathrow, Gatwick, East Midlands), NHS Trust hospitals, and universities.
When the founders sought a partner who understood both the value of legacy and the need for growth, Astra was the natural fit. As part of the acquisition framework, senior leaders Andrew Johnson and Matthew Kelly remain at the helm, ensuring the company’s strong culture continues while benefiting from Astra’s strategic support.
“Finding the right home for Acorn was incredibly important to me… Astra understands what makes Acorn special, and I’m confident they will provide the support needed for the team to grow and succeed.”
Bob Jarrom
Founder, Acorn MPS
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Astra is on a mission to acquire great UK businesses from owners looking to retire - while preserving their legacy, employees, and customers. But we can’t find them all on our own. That’s where you come in.
If you know a small business where the owner is open to selling - whether you're a broker, advisor, friend, accountant, or neighbour - send us the lead. If we close the deal, we’ll reward you for the connection.
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