About Us

Sitki is responsibility for the development and implementation of Landmark Holding Group’s financial strategy plus looking at new business opportunities. A qualified and accredited Engineer with over 10 years’ experience in project and business management. He began his career in the Insurance sector in 2010 when he commenced with Greenwich Underwriting, becoming a Board Member in 2015 and was appointed as CEO in 2016. Sitki has vast experience in all aspects of finance, corporate governance and claims. Sitki is a graduate of Kingston University and has spent time both in Turkey and the United Kingdom.

Ross has strong roots in Northern Ireland from his home town of Larne where he spent his youth and young adulthood growing up in a local Seacourt estate, moving to England to complete his honours degree in Management and financial services. The last 20 plus years has been in London within the global Insurance market. A career that started as a junior claims broker through to being class underwriter at one of the main Lloyd’s of London’s syndicates, He is also Founder of the insurance group Landmark Holding Group. He was delighted to be granted Freedom of the City London in 2021. Now investing his own time into the RUSA Foundation charity that he co-founded to provide a better future to those in grass roots competing sports and underprivileged families and disadvantaged children. We have a commitment to develop in a sustainable and responsible way. Passionate about being socially responsible employers and champions of a mixed ability workforce, providing training and career development for additional needs and socially disadvantaged young people. Ross is grateful to be able to give something back through his various roles. He enjoys helping to build the careers of others, developing relationships with internal and external clients, seeing all the rewards that are generated with people working together to embrace their aspirations.

Jon has over thirty years’ experience of working with both start-up and internationally established Food & Beverage businesses at senior management and Board Level in the UK, USA and UAE. Over the span of his successful career, Jon has held various high-level positions in industry leading companies including Bulmers Cider, Nobel Foods, GU Desserts and more recently Jon held the position of Managing Director of WOW HYDRATE Limited. Jons experienced a series of career milestones including the successful launch of the UK brand, The Happy Egg Co and the launch of WOW Hydrate across the UK and EU which involved securing a high number of multinational grocery retailers and sports outlets as stockists for the business.

Ömür Filiz is a seasoned professional with expertise in project finance, corporate finance, fundraising, investment banking, and venture capital, with a notable focus on smart city initiatives, sustainability, circular economy, energy sector, fintech, and technology sectors. Over the past two decades, he has been actively engaged in conducting due diligence processes and overseeing investment portfolios across diverse sectors.  Ömür has played essential roles in coordinating fundraising initiatives and offering strategic counsel to prestigious entities such as European Funds for Southeast Europe, the World Bank, Kuwait Finance House, and prominent Turkish conglomerates. His dedication to achieving tangible outcomes and cultivating growth underscores his steadfast commitment to the ventures he has supported in these domains.  Additionally, Ömür established Technolera, a venture building company dedicated to impact investment in Istanbul, further demonstrating his entrepreneurial spirit and commitment to driving positive change through innovative ventures.  Ömür holds a Bachelor’s degree in Economics from Bogazici University.

Josh has a proven track record in driving People & Culture strategies across diverse environments. Josh brings a unique blend of experience from both corporate establishments and dynamic technology start-ups within the FMCG, financial services and technology sectors. His expertise lies in crafting and executing organization growth strategies that foster inclusive and thriving workplace cultures. Having worked with multinational companies, Josh honed his abilities to navigate complex, global initiatives to ensure alignment and cohesion across diverse teams and making key contributions to the success of organizations. In the start-up world, he has successfully built and scaled HR and business functions from the ground up, always with a focus on people-first approaches.