Welcome to


Core Values

Our Mission

To be the agency of choice for clients and contractors, through efficiency, quality, integrity, transparency and education.

Our Vision

To nurture our relationships by sharing our knowledge with contractors and survey companies alike, gained through decades of cumulative industry experience.


  • We are a worldwide alliance, providing local solutions to global requirements

  • Our front-line team remain active in the industry and work alongside our contractors and clients   

  • We are a fully independent company, which ensures our focus is with you rather than with investors

  • We operate a full transparency policy on rates to all parties and apply a fixed modest commission for our services

Client Support

  • 24-hour availability from a qualified, experienced Director

  • Assistance with identifying role requirements during project planning

  • Full logistical support as standard with every contractor supplied

  • Continuous supply guarantee to fill set roles for ongoing projects

Contractor Support

  • Full insurance for contractors, including business travel and personal accident cover

  • Guaranteed payment terms with flexible currency exchange solutions where required

  • Training offered to ensure full familiarity with software upgrades or introduction

  • Free impartial help and advice on contracting and accounts

Why CMSourcing?

Successful companies can find themselves pushing their staff hard during peak workloads. The need for freelance personnel is tempered though, by uncertainty around unknown contractors joining their team. CMSourcing has grown year on year, throughout the industry downturn, by establishing confidence with its clients. The company is an alliance of experienced contractors that has grown through personal knowledge of each other’s skills or through respected introduction. The company does not take on ‘numbers’ through unsolicited CVs and it does not employ ‘Recruitment Specialists’ to handle your enquiry. When you contact the company, you will speak to a Director who, with an extensive background in the industry, can understand your requirements and ensure that you get the right personnel for your project.

About Us 

Dave Cullen
Founder, Managing Director

Marine Geophysicist / Geologist with over 10 years industry experience in geophysical survey sector but also offshore drilling and geotechnical.

Mike McLean
Founder, Operations Director

Survey Engineer with over 10 years industry experience working on a variety of geophysical projects inshore and offshore, as well as survey technician on construction support vessels.

Emma Brown
General Manager

With over 20 years experience covering all aspects of admin and accounts, Emma joined CMSourcing in 2017 and now heads up the entire back end team.

Brad Hassall
Client Manager

Brad spent seven years working offshore as Submariner before joining CM. This means he understands the demands of a life at sea and can easily relate to the contractors he works with. He used this shared experience to aide building a strong network with open and honest lines of communication.

Molly Redstone
Operations Manager

With a background in logistics, Molly joined CM as an Operations Assistant in 2018. Through years of increasing responsibility, became a Client Manager in 2021 and quickly earned her place as Operations Manager from 2022. With a range of our highest value clients in the Geophysical market, Molly brings together in-depth knowledge of the company and the Survey Industry in general from a unique perspective.

Gary Snihur
Client Manager

Gary brings a wealth of relevant experience to his role as Client Manager. Prior to joining, Gary spent 12 years in the Armed Forces as a Royal Marine. Building relationships is second nature to him. As well of course, his understanding of the time we ask our contractors to give up.

Bob Glover
Regional Manager Americas

Bob arrived at CM Sourcing in early 2021 after spending 13 years in the hydrographic software and systems industry.  Focusing primarily on marine construction and dredging, his knowledge brings a unique perspective to our clients and how best to meet their needs.  Having been tasked with building the CM Sourcing Inc brand in the United States, he currently heads up our Boston Massachusetts office.