Who we are

We’re a fast-growing integrated engineering, environmental and building consultancy. We’re currently doubling in size year on year through strategic business acquisitions and organic growth. Our companies include:

Our journey began in energy assessment and testing services but now includes building services design, building control and our original building compliance offering. The combined experience of the Group exceeds 50 years, so we fully understand the complexities you may face during the construction cycle.

Although the Group is continuously developing, we are a collective of SMEs, allowing us to offer a full suite of services without compromising on service quality or standard of work. When you choose us, you get the Group benefits of security, knowledge, UK-wide coverage and availability of staff, but also the advantage of SMEs: flexibility, quick decision making, entrepreneurial thinking and modern methods of working.

Our clients always come first in our solutions-focused approach and we care about the projects we work on, always seeking the best outcomes for you, whether that’s saving you time and money or increasing your project’s sustainability and environmental performance.


To provide efficient, reliable and integrated solutions, to help you create sustainable, healthy and compliant buildings of the future.


To be one of the most progressive building consultancies in the UK. By 2025 we will provide a full suite of construction consultancy services and employ over 300 like-minded passionate experts.


  • Growth
  • Expertise
  • Reliability
  • Efficiency
  • Solutions
  • Care


We are continuously seeking to grow through the acquisition of complementary businesses. We have a current acquisition focus on:

  • • Planning Consultants
  • • Property Compliance & Risk Management Services (Asbestos Management, Fire Safety, Water Safety, Health & Safety, Environmental Services)
  • • Environmental Consultants
  • • QS/Project Management
  • • Acoustic Consultants
  • • Property/Construction Related Health & Safety Consultants
  • • Facilities Management
  • • Air Quality Consultants

When a company joins C80 Group, we always aim to protect the legacy and brand values of the existing business whilst growing it alongside the other C80 firms. We are active shareholders and support growth within the organisation, using Group Operational, HR, IT, Marketing, NED and Finance functions. We always look to retain and work closely with existing management teams to ensure a smooth process and protect existing employees.

The services provided by each company are designed to work seamlessly alongside each other, so a client of one company can easily become the client of another in the Group.


Mark Heptonstall


Oliver Bentley

Chief Operating Officer

Katherine Naisbitt

Chief Strategy Officer

Margaret Ferris

Chief Financial Officer

Kim Chatrath

HR Manager

Emily Garthwaite

Marketing Manager

Claire Morland

Finance Assistant

Debra Shaw

Personal Assistant

Gary Lumby MBE FCIBS

Non-Executive Director