Our Operating Board

Oliver Ratzesberger


Oliver is an executive business leader and technologist with over 30 years' experience at tech companies such as Teradata and eBay, as well as board positions at Tech San Diego and the University of California San Diego. Having previously held CEO, COO & CPO roles, Oliver led a variety of company and product transformations. He has delivered keynotes on data and tech and co-authored a book that made The Wall Street Journal Best Seller List.

Sarah Arana-Morton

Chief Executive Officer

Sarah is a business leader who brings nearly 20 years’ experience of growing businesses and building high performing teams in the data industry. Prior to her appointment as OpenCorporates’ CEO, she served as its Chief Operating Officer for four years, significantly growing the company’s client base. Sarah served in global leadership roles at dunnhumby, a data science company, having developed business units across Europe, Asia-Pacific and the US from the beginning.

Chris Taggart

Founder & Chief Strategy Officer

Chris founded OpenCorporates and is its Chief Strategy Officer. He is an experienced entrepreneur, having previously run and founded successful magazines companies, and is an acknowledged expert on global company data, particularly corporate identifiers.

Julia Apostle

Non-Executive Director

Julia brings almost 20 years of experience spanning the intersection between law, technology and data from the likes of Twitter and the Financial Times. In addition to her Non-Executive Director role at OpenCorporates, she is a partner in the Tech Transactions group of the law firm Orrick, supporting their Cyber, Privacy and Data Innovation teams.

Alessia Falsarone

Non-Executive Director

As a sustainable finance expert, Alessia brings to OpenCorporates over two decades of asset management and corporate advisory experience spanning three continents. A fellow of the Aspen Institute’s Business and Society Program, she is an advisor to the London Stock Exchange with focus on capital markets’ participation in promoting responsible business practices. Alessia holds a certified corporate director status by NACD.

Our Team

Sarah Arana-Morton

Chief Executive Officer

Sarah is a data industry leader who brings nearly 20 years’ experience. She previously served in global leadership and board directorship roles at dunnhumby, a data science company, and more recently as the Chief Operating Officer of OpenCorporates.

Chris Taggart

Founder & Chief Strategy Officer

Chris founded OpenCorporates and is its Chief Strategy Officer. He is an experienced entrepreneur (having previously run and founded successful magazines companies), and is an acknowledged expert on global company data, particularly corporate identifiers.

Rebecca Lee

Chief Impact Officer

Rebecca joined OpenCorporates after 11 years running Forensic Investigations for PwC and Deloitte: using data to detect, investigate, prevent and remediate crime. The opportunities to tackle crime through OpenCorporates data for the wider public good inspired her to join the team. Outside of work, she loves spending time outside with her family, Land Rovers, Scouting events and her aquarium.

Alan Buxton

Chief Technology Officer

Alan started his programming career in the mid 90s after completing a degree in Social Anthropology. Since then he has worked as a developer, project manager, product manager and CTO for a number of high-growth organisations. Having battled with black box company data for many years, he was drawn to OpenCorporates by its mission to open up company data.

Tannah Matus

Chief Financial Officer

Tannah is a Chartered Management Accountant (CIMA) with seven years' experience at SMEs covering financial, strategic and operational decision making. More recently, he was a consultant FD/CFO to a number to start-ups & high growth SMEs.

Jade Croucher

Head of Commercial

Jade is the Head of Commercial at OpenCorporates. With over 5 years’ experience on the Open Data scene, Jade is passionate about liberating data and corporate transparency. Born and raised in North London, she is a keen traveller and enjoys keeping fit, and combined the two to run a marathon in Uganda.

Shanti Salas

VP Sales, North America

Shanti brings over 15 years of experience at Kroll, PwC and Exiger, working with clients in the fields of investigations, reputational due diligence and third party risk management. He is passionate about helping clients find solutions for their needs that also drive transparency in society. Shanti is an avid reader who enjoys cross-country road trips and travel to new places.

Millie Stanisic

Head of Sales, Rest of World (Interim)

Millie joined OpenCorporates Commercial team after having worked in different commercial roles in the data industry since graduating from Kingston University in 2014. Originally from Montenegro, London has been her home for the past 10 years. When not visiting friends and family around the world, she enjoys taking her Cocker Spaniel (Cooper) on walks and hikes across the country.

Kate Pierre

Head of People

Kate studied psychology at university, before making a transition into Human Resources and achieving a CIPD qualification in HR Management. Kate spent 3 years at a tech start-up, where she established People and Culture activities as well as significant growth in headcount. When not working, Kate enjoys networking over a glass of prosecco and travelling to sunny destinations.

Chloe Trenchard

Head of People (Interim)

Chloe spent 15 years in a variety of human resources related roles at American Express, from business partner to recruiter and change manager. Chloe moved into the high-tech scale up world when she joined Treatwell as Group HR Director and recently completed an M&A project for Legal & General. Outside of work Chloe loves spending time with her family, walking her dog and playing tennis.

Philip Galloway

Head Of Marketing & Digital

Phil brings 12 years of data-driven marketing experience spanning blue chip and start-up companies such as British Telecom and Channel 4. Originally from Ireland, Phil has lived in Dublin, France, the US, Malaysia and Singapore. Outside of work, Phil keeps active and enjoys running, tennis, squash and kite-surfing.

Laurence Reid

Head of Demand Generation

Laurence’s role is to spread the word about the benefits of transparent data to business and society. He brings 8 years’ marketing experience from companies leveraging data and technology in the risk management, anti-financial crime and aviation sectors. B2B Marketing magazine named Laurence as one of the ‘Top 30 Under 30 in B2B Marketing’.

Sam Hardinges

Sales Executive

With a passion for open data, Sam joined OpenCorporates after holding a number of commercial roles at SaaS startups within the PropTech and EdTech sectors. Born in Enfield and raised in Bournemouth, Sam has a love for the sea-side as well as long walks with his dogs, Nora and Rodney.

Liam Sharpe

Customer Success Manager

Liam joined OpenCorporates having spent 5 years working for FE fundinfo in the investment data sector as a Data Relationship Manager. This involved ensuring clients were able to effectively integrate their data with FE fundinfo’s systems and get as much value as possible from their products.

Susanne Lundkvist

Project Manager

Susanne is an experienced project, programme and product manager. She has worked for startups, scale-ups and big corporations, and enjoys driving growth by tapping into team talent and ambition to achieve beyond expectations. She lives in London and enjoys running and audiobooks.

Aurelija Luko

Financial Controller

Aurelija is an ACCA qualified chartered accountant who has worked for publicly listed companies covering consulting, property and infrastructure, as well as the healthcare industry. Over the last 15 years, she focused mainly on internal controls, monthly reporting and financial statements.

Asfand Qazi

Senior Software Engineer

Asfand helps design and build the technology that will help grow OpenCorporates into an industry leader. He brings over 15 years’ software engineering experience, having worked on major projects for a variety of technology companies, from smart cameras to social media websites.

Ivan Bashkirov

Software Engineer

Ivan came into software development through music tech, which he studied at university. Having lived in many places throughout the world, Ivan believes that opening up corporate data globally will be beneficial for everyone. Apart from his interest in data, he enjoys working at the intersection of technology and humanities, as he believes this is where the real magic happens.

Gary Brett

Site Reliability Engineer

Gary joined OpenCorporates after having worked across many industries as a Linux infrastructure and DevOps engineer and brings with him 15+ years of experience in the field. Born and raised in London, Gary is a keen musician who enjoys recording, spending time with his children, playing football and following a variety of different sports. He has a passionate interest in open source and emerging technologies.

Liz Conlan

Software Engineer

Liz has spent the last decade and a half working on public benefit projects to open up data and create tools to hold power to account. She brings experience of a range of computer systems from obscure mainframe tech to modern web frameworks and non-relational databases. Outside of work she can be found tinkering with vintage computers or trying to get the local wildlife to sit still long enough to be photographed.

Guy Calloway

Software Engineer

Guy joined OpenCorporates after completing a master's degree at Oxford University and an intensive coding bootcamp course. While at university, Guy founded his own sustainable clothing company, involving building the website and brand. Guy’s passion for technology and design attracted him to a career in software engineering. Guy’s hobbies include playing the trumpet, running and swimming.

Irina Stolyarova

Data Operations Analyst

Irina is interested in all things data after being exposed to data science projects in her previous roles at Featurespace and Russia’s largest astronomical observation centre. Prior to joining OpenCorporates, Irina completed a data science and statistics masters degree at Exeter University.

Richard Heathcote

Customer Response Agent

Richard joined OpenCorporates after working across various customer focused roles including the NHS Track and Trace System for Covid-19. Richard graduated from Sheffield Hallam University with a degree in computing. Richard is a keen gardener, enjoys long walks and loves to bake.

Stephanie Peek

Customer Response Agent

Stephanie has come from a customer focused background, having worked across a variety of fields, including the app Hoop providing customer support for Hoop for organisers. Stephanie enjoys spending time with her family and going on holiday.

Join us

We live in a world where the future of democracy is no longer assured, and the power and opacity of corporations threatens to undermine society. If you want to make a difference, want to make sure that fundamental rights and democratic values are maintained, join OpenCorporates, the largest open database of companies in the world. Our work - Shining a light on the corporate world – has never been more important. If this appeals to you, get in contact, and start making a difference to the world.