Integra, which designs and manufactures modular buildings, is now operating from the new office building on an expanded site at Paull, East Yorkshire.
The company has consolidated all its operations at the site east of Hull as part of a £3m investment programme, including building the offices.
The two-storey, modular office building is intended to showcase the design, build and materials Integra offers to its growing client base and features facilities that are also available to the company’s customers and suppliers.
Managing director Gary Parker said: “It’s a hugely important milestone for the business.
“As well as this new office building, we’ve created bespoke manufacturing facilities that have doubled our production capacity.
“We’re in a growing industry, an industry of the present and the future, and we now feel we have facilities which reflect that.”
Integra manufactures modular buildings for permanent installation across a range of sectors, including sport, leisure, education, healthcare and commercial operations, as well as durable, anti-vandal modular buildings used predominantly for office and welfare facilities on construction sites.
Mr Parker said the company was passionate about banishing the out-dated “prefabs” image of the modular industry and added: “We believe modular building is the way forward for the construction industry.
“In fact, our new offices illustrate that perfectly. The office building is a showroom for the business, as well as a great environment for our staff.
“You wouldn’t know it was a modular building. You would also think it was constructed in situ. In fact, it was built in our new factory units, in 16 sections, craned onto foundations over a weekend and assembled like lego.”
The new 8,300 sq ft office building is unusual for a modular construction as it has high ceilings, a concrete first-floor base and no central supports, enabling the open plan layout.
The new facilities will support further growth for the company, which is on target to deliver record turnover of £24m in 2018, up by more than £5m in two years.
Its investment programme has created almost 20 new jobs, taking the workforce to more than 100.