Latest accounts for the year to March 2022 show pre-tax profit surged ahead 54% to £19m on revenue up 18% to £948m.
This helped to lift group margin from 1.5% to 2%.
Each business unit within John Graham Holdings, comprising of building, civil engineering, interior fit-out, facilities management and investment projects, remained profitable.
Graham started the current financial year with a record work pipeline of £1.9bn and £127m cash at bank, up from £119m over the year.
Andrew Bill, Graham group chief executive officer, said a disciplined approach to work winning was now bearing fruits.
“We have adopted a pragmatic, sensible and selective approach to winning work, coupled with a focus on risk management.
“Real collaboration with our clients and partners, based on trust and transparency, has also been central to realising our Group objectives.”