HomeAdvisor racked up operating income of $12.8 million in the third quarter, a 110% increase from the year-earlier period, on a 35% revenue gain to $133.6 million, the service provider's parent company, IAC, reported today. The gains were driven primarily by a 39% increase in domestic revenue, as the number of service professionals paying to be part of the service rose by 48% to more than 137,000 companies. Service requests, meanwhile, climbed 27%.

In a letter to its shareholders, IAC said that the growth in service professionals is "roughly equivalent to the size of Angie's [List's] entire network." IAC tried unsuccessfully to buy Angie's List last fall.

IAC primarily measures its number via adjusted EBITDA, which it defines as, "operating income excluding: (1) stock-based compensation expense; (2) depreciation; and (3) acquisition-related items consisting of (i) amortization of intangible assets and impairments of goodwill and intangible assets, if applicable, and (ii) gains and losses recognized on changes in the fair value of contingent consideration arrangements." By that metric, adjusted EBITDA increased 79% to $16 million due to the higher revenue, notwithstanding a 36% increase in selling and marketing expenses, including 48% growth in TV marketing, and $1.1 million in transaction-related costs.

Furthermore, in October, HomeAdvisor announced it had agreed to acquire a controlling interest in a home service marketplace in Germany called MyHammer. The company also intends to go broader by acquiring other market leaders in France, the Netherlands, and Italy.