Judges praised the turnaround in the business in challenging market conditions and the focus on providing quality service to solicitors and their clients.
The ESPC was also highly commended in the Member Business of the Year category at the Edinburgh Chamber of Commerce Awards, with the top prize going to Edinburgh Castle.
Chief executive of the ESPC, Malcolm Cannon, said: “We were delighted with the nominations that put us alongside such prestigious companies as Edinburgh Castle, First Scottish and Edinburgh Airport.
“To win one award and be highly commended in another is a fantastic result.
“The team at ESPC has been working very hard over the last two years to turn around the fortunes of the company. We’ve exceeded our targets in terms of profitability, market share and growth in brand awareness.”