Mabey Hire turned over £50m last year to generate a pre-tax profit of £9.5m, including £4.4m of disposals.
The firm employs around 400 staff operating out of 16 different locations.
Under the deal with German-owned PERI, Mabey Hire will continue under its current management, brand and name and will operate as an independent company under the umbrella of PERI UK.
Ian Hayes, Managing Director PERI UK, said: “Together, we will work to achieve cross-selling opportunities to offer our customers an even broader range of infrastructure and renovation products and continue the drive to always provide the best possible service to our customers”
David Adams, CEO of Mabey Hire, said: “We already look forward to working together to expand the business by serving more customers in both the UK and internationally.