Our history


We set up in Great Yarmouth in 1973 and helped the Hamilton Brothers produce first UK oil from the Argyll Field on June 11, 1975. Since then our well flow management services have grown around the world.

The company strengthened its position as the market leading well flow management services provider in the 2010s, and achieved a number of accomplishments including:

  • Leading market position in offshore well testing
  • Number one market share in subsea completion landing strings
  • Industry leading safety performance with recognition from the Royal Society for the Prevention of Accidents for 12 consecutive years

In 2010, Expro hired an experienced oil services management team to lead the company through its next phase of growth.  This included the appointment of Mike Jardon in 2016, as Chief Executive Officer, working alongside the existing executive management team of Jean Vernet (CFO), John McAlister (Legal Counsel) and Alistair Geddes (EVP).

Several significant acquisitions were made during this decade, including certain assets and contracts from Production Testers International (PTI), and wireless technology in the form of Cableless Telemetry System (CATS). After a decade of growth Expro was taken private after an acquisition by a private equity consortium in 2008.

  • 2008: Expro acquires PTI which is focused on early production and well optimisation through the fast track deployment of surface facilities
  • 2007: A single Expro brand is created with the unifying ‘Well Flow Management’ mission
  • 2006: Acquires Power Well Services, a well testing provider
  • 2003: Expro acquires Cableless Telemetry System (CATS) from Flight Refuelling Limited. The technology is capable of transmitting data electromagnetically from downhole depth in excess of 10,000 feet
  • 2003: New operations support bases opened in the US, Equatorial Guinea, UAE and Oman
  • 2002: Operating bases opened in Australia (Adelaide, Moomba and Baleera) and Alaska
  • 2001: The company acquires Multiline Combination Services Inc (Canada), Production Wireline Services (US)
  • 2000: Acquisition of Tripoint Inc, Kinley Corporation, Surface Production Systems, and the contracts and well testing assets of Production Testers International Ltd
  • 2000: Officially opened a Bergen subsea facility, and a new base in Singapore

By the early 1990s, Expro was growing quickly and put into place a plan to manage growth through targeted geographic expansion, service portfolio expansion, potential acquisitions and business efficiency improvements.

With targets of safety, efficiency, technical solutions Expro was able to accelerate its growth trajectory in a number of markets, ultimately leading to a public listing on the London Stock Exchange in 1995. The late 90s saw further acquisition and expansion globally, including in Norway, Kazakhstan, Russia, Brazil and the US.

  • 1998: The company is reorganised into three business streams: Cased Hole Services, Subsurface Systems, Surface and Environmental Systems
  • 1998: Expro acquires Tronic Ltd, Oilserv Australia Ltd and Saltus Sub Surface Services Ltd
  • 1997: The company introduces the ‘Extreme’ and ‘Exal Hot’ range of downhole monitoring instruments
  • 1995: Expro is floated on the London Stock Exchange and establishes its first big bore subsea landing string
  • 1995: Expro Americas is established to service the Gulf of Mexico and South America
  • 1993: A new office is opened in Houston, US. The company is also awarded the Offshore Achievement Award for Technology
  • 1992: Expro introduces ‘Exal Sure’, a new range of electronic bottomhole gauges


  • 1987: Expro makes its first acquisition, buying Exal - a data acquisition and sampling company
  • 1983: Expansion continues into China, Tunisia, Pakistan, Thailand, Libya, Kuwait, Malaysia

John Trewhella, Jim Ross and Humphrey Green formed Exploration and Production Services (North Sea) Ltd in Great Yarmouth in 1973, with the far-reaching vision of competing on a global basis with the major international service companies.

By 1974, Expro had established a well testing business and a PVT laboratory. It was Expro production operators who then produced the first UK oil on June 11, 1975, from the Argyll Field. With this success still fresh, Expro opened its first base in Aberdeen.  Key contracts were awarded by Hamilton Brothers (production on Argyll) and BP (wireline on the Forties field), and Expro was fully launched.

  • 1979: The company starts work in Yemen, Indonesia, Equatorial Guinea, Gabon and the Ivory Coast
  • 1978: Expro opens a base in Holland to service the strong North Sea gas market
  • 1977: Expro is awarded the Queen’s Award for Export Achievement (and again in 1978)
  • 1975: First oil produced from the Argyll field
  • 1974: Well Testing business and PVT laboratory established
  • 1973: Expro founded