16 | Acquisition International, July 2026 Helping Businesses ‘Complii’ cross five core divisions – Water, Air, Fire, Electrical, and Lifts and Escalators – Complii delivers everything from legionella risk assessments and water treatment to closed system monitoring, ductwork cleaning, fire risk assessments, fixed wire testing, lift maintenance, and escalator installation. These services are provided as part of a fully integrated compliance solution that spans multiple disciplines and is underpinned by smart technology and tailored to the specific risk profile and operational needs of every client. Guided by the same values since it was founded as Compliance Group back in 2019, namely agility, collaboration, excellence, simplicity, integrity, and trust, Complii has evolved into one of the UK’s leading building compliance groups. Its rebrand last November reflected its new vision for safety and compliance and an aim to unify its businesses under a cohesive brand identity. The dots on the double ‘I’ in compliance represent the company’s philosophy of standing shoulder to shoulder with its clients. Tremendous growth has defined the company’s journey over the last seven years, and it has today completed 18 acquisitions and consolidated deep specialist expertise across key areas such as water hygiene, air quality, fire safety, and electrical compliance, as well as lifts and escalators more recently. As a result, it today employs more than 650 people and serves over 5,500 clients, with a presence across more than 10,000 UK sites. The success of its operations from Glasgow to Southampton can be attributed to the partnership philosophy Complii utilises, which sees it work as a trusted extension of a client’s own teams. Its specialists are communicators as much as they are technical experts, and they work with transparency to see that clients always get clear reporting, honest assessments, and straightforward advice. “We believe that a compliance partner who tells you only what you want to hear is no partner at all”, added Sharon. Sharing with us some examples of client partnerships that she believes best showcase Complii’s success in high stakes environments, Sharon named the King’s College Hospital NHS Foundation Trust, London’s Fitzrovia, and Everton FC’s new stadium as settings where Complii’s professionals have shone. The technical depth brought to these settings is underpinned by accreditations to the most rigorous standards of the industry, from LCA registration in water hygiene to NSI Gold in fire and electrical. Outside of its teams, Complii is driving further value through it use of IoT and remote monitoring technology, with its ZetaSafe digital platform already offering real-time asset management and auditable compliance records for large and complex estates. There are plans to expand the capabilities of this system to make it accessible for all clients, alongside an investment in a single digital environment where accessing records, tracking scheduled work, and managing obligations can be done in one place. “ Building compliance has historically been fragmented and paper-heavy; we want to change that fundamentally. ” These deployed technologies are only half the story, and the other side of the coin for Complii when it comes to innovation is enhancing how it operates as a group. Sharon told us: “We will continue to pursue our buy-and-build strategy – bringing the right specialist businesses into the group, deepening our national coverage, and expanding our service capability.” The recent introduction of its Lifts and Escalators division is a great example of this, and reflects Complii’s ambition going forwards. Essentially, in a sector where clients can feel overwhelmed by regulatory complexity, the difference between a contractor and a true compliance partner like Complii is enormous. The highly accredited professionals it employs across more than 20 locations from Scotland to the south coast are often sourced from businesses acquired by the group, meaning it retains their expertise and culture whilst building something that is both unified and significant on a national scale. As the group’s transformation director, Sharon Fleming plays an integral role in delivering these building, compliance, safety, and regulatory compliance services across the UK, a feat recognised through her title of Most Impactful Transformation Leader 2026: Building Compliance Services (UK) here within these pages. More on this work can be found at Complii’s website, linked below. Contact: Sharon Fleming Company: Complii Web Address: https://www.complii.com/ Taking the complexity out of building compliance, Complii gives the organisations it works with genuine confidence that their people, assets, and reputation are protected. Its mission to be the most trusted building compliance partner and an extension its clients’ teams is captured in its strapline: By Your Side. For more on Complii and its impact, we sat down with Sharon Fleming, named Most Impactful Transformation Leader 2026: Building Compliance Services (UK) as part of this feature. A
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