Location Sciences Group – Verify


Warren Zenna


Warren Zenna joined Location Sciences as President, US in 2019 to launch and position the company for success in the region. His primary mission is ensuring all marketing stakeholders who depend on location data are able to verify the validity of the data and maximize the value of their location-based investments.

Previously, Warren spent 25 years in seminal executive roles at Havas, Publicis, iCrossing, IMC2 and Zeta Interactive. During that time, AstraZeneca, Bank of America, Citibank, DJI, Logitech, LVMH, McDonalds, Microsoft,  Nestle, NFL, Pantone, P&G, Novartis, Powermat, Samsung, Sears, USGA and dozens of other brands worked with Warren and the teams he led to  engage with consumers in impactful ways, scale their businesses and drive billions of dollars in value across their organizations.


Jesse Brooks

Vice President of Sales

Jesse joined Location Sciences in 2019 as a VP of Sales with the task of bringing location verification to life in the US. His goal is to help brands and agencies understand the quality and accuracy of the location data they purchase for their digital and programmatic campaigns.

Jesse has a passion for advertising and enjoys being a sales leader. With over 10 years of experience, Jesse has a long list of relationships across all the major holding groups and agencies in the US. He has a continually proven track record of achieving record-high client satisfaction rankings and exceeding revenue objectives while managing young sales talent. His expertise in all the major advertising mediums and platforms, including video, social, search, display, radio, TV and data/measurement.

Jesse graduated from Colgate University with a degree in environmental sciences and is a big sports fan. He calls New York City his home.


Mark Slade


Mark is one of the advertising industries leading lights with numerous senior relationships across the ad tech and media giants. He joins us from Opera Mediaworks, where he was Managing Director, EMEA. Mark founded and sold his mobile advertising business 4th Screen to Opera, and then helped grow the business to over $100m in revenues. Mark’s expertise is in executing in a high growth ad tech sector as well as European acquisitions. He joined the Board in June 2017.


David Rae


David is an accomplished CFO with a wealth of public company, growth and international business experience within the technology and energy sectors. In February 2018, David joined the board as Chief Financial Officer (CFO) and since then he has also taken on the role of Chief Operating Officer (COO), enabling Location Sciences to deliver its ambitious growth strategy.

David is a fellow of the institute of chartered accountants and has a first class honours BSc degree in Information Systems and Management.

Niall Hogan

Niall Hogan

Non-Executive Director

Niall has over 18 years’ experience in nurturing digital and technology businesses in the UK, European and Asian markets. Most recently, Niall was a managing director at Integral Ad Science Southeast Asia. He joined IAS in 2013 to lead the UK and European team, which he grew from a single employee to more than 65. Since the beginning of 2017, he has been based in Singapore where he was responsible for IAS Southeast Asia and was focused on new business, employee recruitment and ongoing client engagement. Prior to IAS, Niall was the UK Sales Director at Tribal Fusion (now Exponential), where he helped establish the company as a key player in the UK network space. Prior to Tribal Fusion, he held Digital Sales Director roles at Hearst Digital and EMAP Interactive (now Bauer Advertising).