Marketers at large companies say Facebook is both the most used social network by their businesses and also the most effective one for engaging audiences, according to recent research from Clutch.

The report was based on data from a survey of 304 social media marketers who work at companies with more than 100 employees; 62% of respondents work for firms with more than 500 employees.

Some 97% of B2C companies and 95% of B2B companies say they use Facebook as a marketing channel.

Twitter ranks second (75% of B2C companies, and 74% of B2B).

YouTube is third (61%, both B2B and B2C).

Some 62% of respondents say Facebook is the social network that yields the best results for their business; 14% say LinkedIn yields the best results.

About the research: The report was based on data from a survey of 304 social media marketers who work at companies with more than 100 employees; 62% of respondents work for firms with more than 500 employees.