About Us


Terra Firma Ground Investigation’s core team draw together more than 50 years’ experience with contractors, consultants and clients to provide a reliable, innovative and problem solving Ground Engineering Company.


Our capability now includes a wide range of practical, technical and innovative solutions to our clients’ ground engineering problems, from project feasibility through investigation, design advice, site supervision, instrumentation and monitoring.


Our people are the engine of everything we do, and we continuously support, develop and stretch all our staff. We thrive on a challenge and the opportunity to bring our heads together to find the right answer to any Ground Engineering problem.

Management Team

Mark Bradley

The founder and heart of TFGI, Mark is an Engineering Geologist who has a rare ability to motivate and instil a never be beaten attitude in all staff. His infectious enthusiasm and appetite to solve, fix and deliver answers to our clients every day is truly impressive.

Mark has been instrumental in establishing, running and growing TFGI from a straightforward ground investigation contractor to the multi-disciplined specialist that the company is today.

All our clients like Mark, he never gives up, solves their problems and is always looking to deliver more.

He is also a qualified Commercial Pilot.

Tony Minehane

A founding director, Tony has seen it, done it and improved it! He has worked across many UK and international sectors and continues to amaze us with his knowledge of even the most obscure requests we see come through the door. Nothing but nothing fazes Tony.

He is the catalyst for answers and if we need to know what it does, why it does (or does not) work, or the history to its design and operation Tony will know.

He has a lifelong shooting interest and can often be found on the ranges at Bisley helping out and encouraging this sporting interest.