The civil engineering company will host a golf day at the Orange Ex-Services' Country Club with an aim to support Veritas House.

The hole-in-one prize will be a brand new Mazda three from John Davis Motors.

AWCON CEO Paul Montagliani said they originally hadn't opened registrations up to the public as they were worried the day would be over-subscribed.

"Unfortunately, we've had some people who were really keen now advise they are unable to play, which is disappointing for them, but creates a great opportunity for local golfers to get involved," he said.

A two-ball ambrose event, the day will tee off with a shot-gun start at 1.30pm.

There will also be a barbecue, auctions at the clubhouse at the end of the day and plenty of prizes in addition to the car.

"With the drought and the bushfires and so much negativity going on of late, we also think it is a positive way for locals - regardless of their golfing abilities, to take some time out to get some exercise, socialise with a fun group of people and raise much needed funds for a great cause," Mr Montagliani said.

Entry is $40 per player. To register a team visit the Veritas House website.