Innovative civil and structural engineering

A leading UK engineering firm providing innovative solutions to complex challenges

Acies Civil and Structural Limited was formed from a professional partnership dating to 1998. In 2008, we rebranded as Acies, Latin for steel or sharp edge, which reflects our innovative approach to complex structural engineering challenges, improving buildability and adding value to our clients’ assets.

In 2017, we joined the RSK Group, a global leader in sustainable solutions focusing on environmental, engineering and technical services. Working together, we address societal challenges aligned with the United Nations Sustainable Development Goals, offering integrated solutions across sectors such as water, energy, food, infrastructure, construction, mining and waste management. Becoming part of RSK has enhanced our structural engineering capability, enabling us to offer a full range of specialist in-house services, including site investigation, materials testing, archaeology, acoustics and environmental services.

In 2024, RSK civil and structural engineering firms CWA and KMG became part of Acies. Both companies add to our commercial property experience across all sectors, with expertise in temperature-controlled storage and distribution for the food and drink industry, pharmaceutical facilities and laboratories, new build high- and mid-rise residential developments and commercial offices.

We place the utmost importance on providing a quality service

We are accredited to ISO 9001:2015 for quality assurance, ISO 14001:2015 for environmental management and ISO 19650-1:2018 for information management and building information modelling (BIM). We provide a dedicated team for your project, ensuring a strong working relationship.

We take great pride in everything we do

Our approach

We have many years’ experience in commercial property across all sectors, and most of our work comes from repeat business or word-of-mouth recommendations from satisfied clients, including institutional and blue-chip organisations, developers, contractors and household names. Our team of Chartered Engineers offers wide-ranging expertise, working alongside other construction-related disciplines provided by the RSK Group and operating throughout the UK, Ireland and Europe. We are always happy to talk about how we can help with your project from an initial chat about options to providing a full feasibility report.


As well as the structural design work that is the day-to-day business of any consultancy, we also undertake a variety of surveys and inspections: technical due diligence, acquisition surveys, planned preventative maintenance surveys and condition surveys, including reinforced autoclaved aerated concrete (RAAC) and defect reporting. Together with our expert witness service, these inform our design work, giving a deeper understanding of the entire life cycle of a structure, enabling commercial considerations to be incorporated from the earliest stages of the design process.


Our commitment to innovation and sustainable development helps us to resolve the challenges we meet on projects. Sharing knowledge gained from previous projects and expanding on it through research sharpens our ability to provide our clients with tailored solutions that deliver the best outcomes. Sustainability is embedded in everything RSK does. Likewise, it is a key driver for the Acies team as we strive to provide a design that meets our clients’ environmental goals.


We are proud of our people, who have enabled us to build our reputation: they are knowledgeable, skilful and thoughtful and always rise to a challenge. We are highly committed to investing in the development of our team, with an annual graduate intake made up of first degree, master’s and mature candidates through the RSK recruitment process. We can offer apprenticeship degrees and training towards degree-level courses, with support from the RSK learning and development team.

About Acies - education


STEM ambassadors

Science, technology, engineering and mathematics (STEM) activities are important for creating opportunities to inspire young people in these disciplines. There is a nationwide network of STEM activities in schools at primary and secondary level, as well as participation in careers events at schools and universities. We encourage participation, particularly from our early career staff, who are keen to share their experience and enthusiasm with the engineers and technicians of the future.

Work placements

We support local schools with the opportunity for short work experience placements for year 10–12 (S4–S6 in Scotland) pupils and can often consider longer placements for undergraduate work experience either during vacations or as part of a year in industry, together with other RSK businesses.

Our projects

Our services

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Acies is part of the RSK group of companies

The RSK group is a leading integrated environmental, engineering and technical services business offering bespoke end-to-end solutions to a variety of sectors. Headquartered in the UK but with an established presence throughout Europe, Africa, the Middle East, Asia and Australia, RSK helps organisations around the world achieve their business aspirations in a sustainable and efficient manner.