Mark Thistlethwayte

Ordnance Survey Leisure Ltd. provides geographical information services. It produces digital and paper maps and OS master maps for business, leisure, government and educational institutions. It also provides current and historical maps, digital geographical information used by insurers, property developers and others. The company was founded on June 21, 1791 and is headquartered in Southampton, the United Kingdom.

Ordnance Survey Ltd. is a mapping services company based in Southampton, UK. and has subsidiaries in United Kingdom. Ordnance Survey Ltd. provides mapping services through online. The British company was founded in 2014 and the CEO is Steve Blair.

Portchester Equity Ltd (Portchester Equity) is a venture capital firm founded in 2010 by Mark Edward Thistlethwayte. The firm is headquartered in Winchester.

Part of Instant Offices Ltd., Incendium Consulting Ltd is a British corporate real estate innovation company that aims to create maximum shareholder value by finding and mining data. The company is based in London, UK and believes that corporate real estate can change the world of work by creating workplaces where people and businesses thrive. The company's mission is to unlock the potential of clients' portfolios to shape the future of their enterprise. The company was founded in 2012 and the CEO is Michael Edward Perkis. Incendium Consulting was acquired by Instant Offices Ltd. on May 01, 2019.

Welborne Land Ltd. is a privately owned holding British company that partners with management teams to execute an agreed strategy. The company was founded in 2017 and is based in Winchester, UK. In 2007, the family began investing in operating companies as part of its strategy. The company's foundations have been built upon many generations, dating back to 1539 when the Thistlethwayte family first acquired the Southwick Estate.