The East Worthing business were crowed overall business of the year and large business champions, while employee Gregory Hills jointly won the young achiever prize.
It was a successful night for both Adur and Worthing, with a mix of highly commended and overall winners spread across the area.
ETI managing director Peter Webb said: “It’s fantastic for the staff and myself. I’m very proud and gobsmacked.
“We put in a fantastic amount of effort and I am just the big guy at the top. I’m stuck for words.”
The firm, which won the Queen’s Award for Enterprise for a second time this year, were delighted to see 27-year-old Mr Hills triumph as young achiever, sharing the award with Sussex Transport’s Sian Panton.
The judges praised the standard of entries across the category and could not choose a winner between the duo.
In another competitive category, fledgling pub the Wandering Goose, in Marine Parade, Worthing, won start up business of the year.
The trendy pub was included in the CAMRA Good Beer Guide in its first year.
Owner Nathan Wright said: “It’s really nice to get some recognition and it’s nice for a pub, as it’s not the obvious choice. It has been a great year.”
Another Worthing seafront success was the Southern Pavilion, on Worthing Pier, which has been transformed into a ‘wow factor’ wedding venue, concert space and café.
Co-owner Richard Bradley said: “It was nerve-racking waiting for the result but it is a fantastic achievement to get that.
“I’ve lived in Worthing most of my life and I have never seen the pier so busy – we’re really proud of what we have achieved.”
Inspired by the Sea completed a seafront hat-trick when it won the readers’ choice award.
For the full story and pictures, see the Herald and Gazette, out Thursday, November 20.