IG Design Group's revenues rose by 31% to £311m in the year to the end of March.
The group said revenues were up 11% at like-for-like exchange rates and after removing the effect of an acquisition made during the year.
Underlying operating profit increased by 29% to £17.5m - up 6% at like-for- like exchange rates and after removing the effect of an acquisition made during the year.
Profit before tax rose by 32% to £13.0m while underlying profit before tax was up 51% at £16.3m.
Chief executive Paul Fineman said: "It is a great pleasure to once again be reporting a year of tremendous progress, with many record outcomes achieved throughout our business.
"Not only have sales and profits exceeded our goals, but our continued focus on cash generation is such that we have been able to fund growth with fast payback capital expenditure, eliminate year end debt yet simultaneously accelerate dividends from 2.5p to 4.5p.
"Whilst continuing to perform with strength, pleasingly we are also ensuring our business is well diversified, invested for the future and with a distinct competitive advantage.
"Having re-branded as 'Design Group', we are increasingly able to leverage our global scale as a diversified, design-led, multi-product category and multi-channel business supported by world-class manufacturing and sourcing operations.
"We are very well placed to continue to grow organically and through product development and innovation, well-considered acquisitions, capitalising on our growing market share and the excellent momentum prevailing throughout the group."