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Wallace Whittle Announces Acquisition of Davie + McCulloch
Wallace Whittle Announces Acquisition of Davie + McCulloch
WWe are excited to announce the acquisition of Davie + McCulloch. This move strengthens our expertise, expands our capabilities, and allows us to deliver even greater value to our clients across the UK.
We are pleased to announce the acquisition of Davie + McCulloch, a respected Glasgow-based building services consultancy and M&E engineering firm. This strategic acquisition represents a key milestone in our continued growth journey, positioning us to deliver even greater value to our clients.

Since our management buyout in 2021, we have achieved significant growth, boosting turnover from £8 million to over £14 million, while expanding to 8 offices across the UK and growing our team to 150 staff members. This acquisition reinforces our ambition to continue the expansion of our capabilities and further establish our position as a leader in engineering consultancy.
Founded in 1957, Davie + McCulloch brings a wealth of expertise in Higher Education, Secure Accommodation, and Defence sectors. Their established reputation and track record complement Wallace Whittle’s existing strengths, creating new opportunities to serve a broader client base.
“This acquisition is an important step forward in our growth strategy. Davie + McCulloch’s expertise and values align closely with our own, and we are confident this partnership will enhance our ability to deliver exceptional results.”
Allan McGill, Managing Director – Wallace Whittle
All staff from Davie + McCulloch will integrate into our Glasgow office, ensuring continuity and collaboration during the transition. While the Davie + McCulloch name will remain in the short term, both teams are already working closely to ensure a seamless integration and alignment of expertise.
This acquisition is expected to propel Wallace Whittle beyond the £15 million turnover milestone in 2025, increasing our team to 160. Plans are also currently underway to establish two new regional offices, with the potential for further acquisitions to support our long-term growth ambitions in the future.
“Our success since 2021’s MBO has been driven by organic growth,” McGill continued. “However, this acquisition accelerates our plans by adding a talented team and a well-established client network, positioning us to further strengthen our market presence.”
We remain steadfast in our commitment to sustainability and innovation. With our ESG & Sustainability team continuing to play a pivotal role in delivering environmentally conscious solutions across a range of sectors, from healthcare and commercial to residential and leisure.
Building on this foundation, we have recently expanded our ESG capabilities to further support our clients’ sustainability ambitions. Our bespoke digital dashboard, PathWWay, enables us to provide enhanced services, offering actionable insights into building performance, climate resilience, and net-zero strategies.

As we embark on this exciting new chapter, we are committed to continued growth and the seamless integration of Davie + McCulloch into Wallace Whittle. This acquisition is a significant step forward in our mission to deliver industry-leading services while upholding the highest standards of quality, standardisation, and sustainability.
We are grateful for the continued support of our clients, partners, and team members as we move forward on this journey. We look forward to welcoming in the new team, as well as the new opportunities ahead.
As Wallace Whittle continues to grow, we invite you to explore current career opportunities with us. If you’re interested in joining a dynamic and forward-thinking team, or if you have a project that could benefit from our expertise, we encourage you to get in touch.