Headland Archaeology's 170-strong team has an in-depth understanding of commercial archaeology with practical experience participating in major construction projects. From high-speed rail projects and wind farm construction through to housing developments and offshore cable laying, the company delivers against critical path and heritage responsibilities.

Founded in 1996, Headland Archaeology covers the whole of the UK from four regional offices in Luton, Hereford, Leeds and Edinburgh.

The acquisition comes when the archaeology and heritage sector has never been more in the spotlight, with a wave of large-scale infrastructure projects requiring archaeological input and expertise. Two of Headland Archaeology's major recent projects include mitigation works on the Aberdeen bypass, UK, a 58km road bypassing Aberdeen city centre and improving transport links across the north-east of Scotland, and the £1.5 billion (US$1.9 billion) A14 Cambridge to Huntingdon improvement scheme, one of the largest infrastructure projects in Europe.

RSK's founder and CEO, Dr Alan Ryder, said: "I am excited to welcome Headland Archaeology into RSK because, like us, their people and clients are at the core of what they are about. The success that the business has already seen is a testament to their leaders and all their employees. I am looking forward to what we can achieve together."

Headland Archaeology's current leadership team, including managing director Tim Holden, will join RSK and continue to drive the business forward. Headland Archaeology will become part of RSK's environment and planning division under the direction of Sarah Mogford. The existing RSK archaeology and heritage business will merge with Headland Archaeology's consultancy team.

"This is a very exciting time for Headland Archaeology," added Holden. "We have differentiated ourselves in a market saturated by the not-for-profit sector to build a robust, commercial business that put clients' needs first. Joining with RSK will further enhance the business, enable us to build on our strengths and provide our staff with new opportunities."

With the addition of Headland Archaeology, the RSK Group becomes the largest, most profitable provider of archaeological services in the UK by turnover.