UPDATE 1-Omnicom revenue, profit beat on UK, Europe growth

(Adds details)

July 20 (Reuters) - Omnicom Group Inc reported better-than-expected quarterly revenue and profit on Thursday as the No.1 U.S. advertising company benefited from higher spending by businesses in Europe and UK.

The company said organic revenue grew 9.3 percent in UK and 7.8 percent in Europe in the second quarter ended June 30.

The results helped allay some concerns about growth abroad following UK's decision to leave the European Union. International sales accounted for about 43 percent of total revenue in the quarter.

However, the company, owner of agencies such as BBDO Worldwide, TBWA Worldwide and Goodby Silverstein & Partners, said the stronger dollar hurt revenue.

Advertising companies have been exploring new revenue streams and are trying to keep up with clients' increasing demand for video content, amid growing competition from consulting firms.

Smaller rival France's Publicis earlier on Thursday reported a modest rise in underlying sales, compared with analysts' estimate of a small drop, driven by a surge in revenue in its biggest regional market, North America.

Omnicom's revenue fell 2.4 percent to $3.79 billion in the second quarter, but beat estimates of $3.74 billion, according to Thomson Reuters I/B/E/S.

New York-based Omnicom, whose clients include Apple Inc , McDonald's Corp and Adidas, said net income attributable to the company rose to $328.6 million, or $1.40 per share, from $326.1 million, or $1.36 per share, a year earlier.

Analysts had expected a profit of $1.38 per share. (Reporting by Anya George Tharakan in Bengaluru; Editing by Sriraj Kalluvila)