Led by People Who Understand London Environments

Meet the leaders behind our London cleaning services, bringing local expertise, operational accountability and the backing of a national organisation to every contract.
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Claire Fields

Sector Managing Director, London

With 14 years of experience, Claire leads cleaning operations across London, working closely with customers and local teams to deliver responsive services. Her focus is on strong relationships, service excellence and ensuring customers always have access to accountable support.

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Adriano Teles De Oliveira

Regional Operations Director

With more than 24 years of experience in the cleaning industry, Adriano has progressed from cleaning operative to Regional Operations Director, building extensive expertise across hospitality, commercial and heritage environments. Passionate about developing people and building high-performing teams, he is known for his commitment to service excellence, continuous improvement, and delivering exceptional customer experiences.

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Steph Cox

L&D Business Partner

Steph is an experienced Learning & Development professional with over 15 years of experience designing and delivering practical, engaging training programmes. She specialises in apprenticeships, vocational development and performance improvement, helping colleagues build the skills and confidence to succeed and progress in their careers.

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Donovan Foster

Solutions Operations Director

Donovan brings extensive experience in workplace and corporate environments, specialising in the design and delivery of commercially focused, digitally enabled facilities management solutions. With expertise spanning cleaning operations, innovation and digital transformation, he helps organisations improve performance through technology, data and smarter service design. Known for delivering practical, scalable solutions, Donovan combines operational insight with a strong focus on productivity, compliance and customer outcomes.

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Samuel Lloyd

Business Analyst

Sam provides the insight and analysis that underpin effective decision-making, helping to translate complex operational data into clear, actionable recommendations. Working closely with operational and leadership teams, he identifies trends, measures performance and supports the development of solutions that improve efficiency, service quality and customer outcomes. His analytical approach ensures decisions are informed by evidence, helping organisations achieve sustainable performance improvements.

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Ross Johnston

Head of Hospitality

Ross Johnston has over 25 years of experience in luxury hospitality and high-end residential environments, with a career spanning South Africa and the UK. At OCS⁠, he leads the hospitality division, overseeing service delivery across prestigious developments and luxury client portfolios. Known for his attention to detail, Ross is passionate about delivering exceptional standards of presentation, cleanliness and customer experience.

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Kellie Newell

Head of Social Value

Kellie bringing extensive experience across large-scale contracts and complex service environments. She is passionate about creating meaningful social impact through initiatives that support employment opportunities, improve social mobility, and strengthen local communities. With a collaborative approach, Kellie works closely with customers, partners and community organisations to develop programmes that deliver lasting value and positive outcomes for people and places.

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