Our Story

Contollo is a new building consultancy that brings together built environment experts with people who know how to build a group.

The demand for energy efficiency, carbon reduction, and sustainability, coincides with increased expectations of what buildings can deliver. However, the building services sector is highly fragmented, with isolated disciplines and limited collaboration. This siloed approach reduces the effectiveness of the consultancy process and prevents developers from realising the full potential of smart buildings.

The founders of Contollo are on a journey to form a new mid-sized consultancy that works with commercial developers to offer building consultancy (MEP and Cost Management), with particular expertise in smart buildings. Contollo seeks to bridge the gaps in collaboration, allowing a more integrated and effective approach to building consultancy that unlocks the full potential of smart buildings for developers.

“Coming together is a beginning, staying together is progress, and working together is success.”

Henry Ford

Meet the Team

Our team is committed to building and establishing a group that will shape the future of the built environment.

Ruth Percival

Chief Executive Officer

Ruth is a seasoned leader with extensive expertise in the corporate finance, power/energy, and healthcare sectors. She has a track record of leading multi-disciplinary teams across diverse professional service disciplines including commercial/sales and operational/service delivery roles. Her leadership is values-driven, emphasising integrity, kindness, and collaboration. Ruth lives in Cheshire, where she enjoys fine art, live music, and walks along the beach, even on windy and rainy days. She has two daughters, a dog, a rabbit and frogs.

Oliver Dennis

Executive Chair

Oliver is an entrepreneur and business leader, with deep experience in professional services and consulting businesses. As the founder and former CEO of one of the largest independent healthcare consultancies, Oliver has, overseen numerous acquisitions, and management buy-outs. His leadership style is marked by evidence-based decision-making, transparent communication, and a commitment to continual evolution. Beyond business, Oliver lives in Cheshire and enjoys golf, walking, fiction writing, and the occasional motorboat adventure off the coast of North Wales. He has two sons, a daughter, a dog and a problem with moles in his lawn.

Ellis Goodfellow

Chief Commercial Officer

A seasoned professional with over three decades in the property consultancy sector, Ellis Goodfellow co-founded the cost-management consultancy firm Abacus in 2007. His expertise lies in cost planning and effective development strategies, particularly during the inception/feasibility phase. Ellis is an expert in benchmarking projects for cost and function, ensuring optimal value and minimising risk. Committed to enhancing Abacus’s offerings, Ellis collaborates closely with the team to maintain high-service quality standards while guiding them towards success. This “people first” approach, underpinned by trust and fairness are values that reflect and align with the Contollo Group.

Outside of work Ellis enjoys walking, with and without golf clubs, has a “love” of chocolate and is partial to a slice of lemon drizzle cake with a “thin” cup of tea!

Mike Perry

Director

Mike Perry co-founded the cost-management consultancy firm Abacus in 2007. Mike’s expertise lies in the ‘Multi-Room’ sector, having delivered in excess of 25,000 student bed spaces and 3,500 Build to Rent apartments. Building strong working relationships with Clients, consultants and key members of the supply chain, Mike has attained an in-depth knowledge and understanding of the volume handover product.

Outside of work Mike has a single figure golf handicap and has caught the Padel Tennis ‘bug’, recently representing Cheshire (over 50’s!!!). Whilst not undertaking sporting pursuits, Mike enjoys spending quality time with his family..

Gary Gardner

Chief Strategy Officer

Through recognition and regular promotion, over two and a half decades, Gary's career spans apprentice electrician to senior leadership team. From a desire to understand the detail, Gary has earned a reputation as a technically strong engineer amongst his peers. Gary benefits from a broad experience of construction and business operations and has learned to navigate industry challenges with fact based compassionate leadership.

Gary has two sons and a daughter, lives in St Helens, likes to set up the day with an early visit to the gym, finds peace walking with Nancy (the Great Dane), and is happiest around a noisy dining room table with all the family for a glass of wine and Sunday lunch (extra veg and gravy).

Sarah Taylor

Finance Director

Sarah is CIMA qualified, with a robust background and over a decade of experience in a varied FTSE 250, £1bn market cap Group. She started her finance career as a trainee accountant and has since gained expertise across sectors including logistics, aviation, and renewable energy. A dedicated mentor, Sarah enjoys sharing her knowledge with future finance professionals and values streamlining workflows for efficiency and value added. Outside of work, she enjoys dining out with family and friends, attending gym classes, and will soon be celebrating her new role as an auntie.

Are you a building consultancy owner? Interested in joining our journey?

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