TPG Growth, the middle market and growth equity investment platform of private investment firm TPG Capital, and SurveyMonkey have entered into a definitive agreement to acquire MarketTools, a provider of software and services for market research and enterprise feedback management (EFM). Financial terms of the transaction were not disclosed.

MarketTools is a privately held market research company whose products include Zoomerang, an online survey application; ZoomPanel, an online sample provider; TrueSample, a data quality assurance technology; Research Solutions, a custom market research provider; and CustomerSat, an enterprise feedback management platform.

Under the terms of the agreement, TPG will acquire MarketTools and transfer the Zoomerang, ZoomPanel and TrueSample businesses to SurveyMonkey in exchange for a minority stake in SurveyMonkey. TPG will separately retain and expand the Research Solutions and CustomerSat businesses.

The transaction is expected to close in January 2012.