AN expanding Hampshire company is celebrating its silver anniversary at the top – with 200 guests 560ft up in the air.

McAndrew Martin, a firm of chartered surveyors, engineers, architects and designers, is holding a gala dinner at the iconic Spinnaker Tower in Portsmouth on Friday, September 5.

The 25th anniversary event at the top of the landmark will include fundraising for Help for Heroes.

More than 200 staff, family, former colleagues, clients and members of the region's business community have been invited to the event.

McAndrew Martin managing director Bill McAndrew said: “We are looking forward to celebrating our 25th anniversary in style at the Spinnaker Tower and to thanking everyone who has supported us over the years.”