Wiltshire Air Ambulance received about £12,000 on Monday, from a business which raised funds for it throughout 2012.
Representatives from Trow-bridge-based education supplier The Consortium gave the donation to the air ambulance service at Devizes police headquarters.
The firm’s 250 staff organised raffles, quiz nights and golf events in aid of the charity.
Claire Kelly, the air ambulance’s head of charity services, said: “We are 100 per cent community funded and this amount raised will help us fund the air ambulance for around a week. We would like to say a big thank you to all at The Consortium.”
The firm raised £4,000 of the total from the White Horse Challenge last summer, walking around all Wiltshire’s famous chalk monuments.
For information on the service, visit www.wiltshireairambulance.co.uk or call 01380 739453.