The Management Team
MARK WHITE – Managing Director
Mark joined the Greyline family business in 1984, having previously completed his plumbing apprenticeship with the London Borough of Brent. He became a company director in 1990, and has played a significant part in Greyline’s growth and success ever since.
Mark has been instrumental in introducing and developing Greyline’s planned maintenance and refurbishment services and overseeing the delivery of varied construction projects. He has built long-lasting business relationships on fulfilling his commitments on each and every project.
Mark is a solid operator with a passion for quality workmanship and proven commercial skills.
GARETH ALLCOCK – Business Director
Gareth brings a wealth of knowledge having operated at a senior level in the social housing sector for over 20 years, delivering successful, consistent and professional planned and reactive maintenance services.
Utilising his experience, Gareth delivers a best in class service to all stakeholders from an operational and commercial perspective both strategically and operationally. With strong leadership skills, Gareth mentors and develops the people he manages, encouraging the best results from his team to deliver high Customer satisfaction.
BARRY McCARTHY- Business Director
Barry joined Greyline at the start of 2026 with 17 years’ experience as a Director for a Tier 1 Social Housing contractor.
He previously led a £65m per year construction division and brings strong leadership, commercial insight, and a proven ability to build high-performing teams focused on delivering outstanding results for clients.
TONY REGAN – Operations Director
Tony joined Greyline in 2020 and has over 30 years in the construction, refurbishment and Decent Homes industry progressing from working on the tools to senior management roles. Tony has managed large operational teams and through his vast experience, has built up relationships with public sector clients, consultants, and a varied and diverse supply chain.
Tony oversees the logistical requirements of each project and monitors performance against the agreed criteria to ensure the delivery of high-quality work within the contract timescales.
LENKA TOMANEKOVA- Head of Bids
Lenka was headhunted by Greyline in 2025 after it was recognised that the business needed to elevate it’s bid submissions further to compete against national Tier 1 contractors. Joining us with a wealth of bid writing and bid management experience under her belt, Lenka quickly reshaped the bid team, altered our processes and has vastly improved Greyline’s bids.
With her specialism in social housing, planned maintenance, retrofit and building safety, alongside her strong strategic thinking and leadership, Lenka oversees the entire bidding process and strategy for the organisation. She leads the team to secure and mobilise contracts in line with clients’ needs.
With her exacting standards, and unwavering attention to detail, Greyline will continue to exceed client aspirations, and keep winning for many years to come.
ADRIAN ATKINSON- Head of Estimating
Adrian joined our journey in 2022. With over 25 years of experience in social housing, and competitive tendering, he has developed a strong reputation for excellence and winning work within the industry.
Adrian leads a team of Estimators, of varying skillsets that compliment our business plan, and his team contributes to the overall success of Greyline. His department provides accurate and cost-effective solutions for all our clients.
With his strategic thinking and understanding of commercial principles, he plays a crucial role in ensuring all our projects are competitively priced, and fully risk analysed.
RUSS POLAKOVS – Business Support Manager
Russ joined Greyline in 2014. He provides professional business support for all of our business departments. Utilising his extensive IT knowledge, Russ is able to support Greyline’s staff whether they are based at the head office or working remotely, resolving IT issues with urgency and accuracy.
Russ maintains our IT security, Website, and ensures our compliance in line with GDPR regulations. Russ is very versatile, and he is a team player who will always support the business across a number of key business activities, bringing his positive ‘can do’ attitude to any task required.
GARY CASE – Business Development Director
Joining Greyline in 2024, Gary brings a wealth of experience and expertise to the team from his long standing career in the London and South East market place.
Gary’s remit focuses on mapping out and maintaining a continuous strong understanding of the social housing and public sector procurements, and establishing paths forward for the business to deliver planned and major works for new and existing clients.
With a strong track record in business development and market intelligence, Gary will assist the growth of the business ensuring a healthy pipeline of opportunities for the future of Greyline.
YUSUF AHMED – Financial Controller
Yusuf joined the business in August 2021, He brings with him a wealth of experience with over 20 years finance industry experience across numerous sectors including Construction, FMCG and Manufacturing.
As the company’s Financial Controller, Yusuf provides detailed analysis of key financial data, support and reporting to assist in financial matters, as well as supporting the directors with key business decisions.
Yusuf possesses excellent leadership and interpersonal skills, with the ability to effectively communicate financial information to both Finance, and equally to non-finance colleagues.
