UPDATE 2-Adecco to buy U.S. firm Drake Beam Morin

* Deal has an enterprise value of 149 mln euros

* Deal to bolster Adecco's career transition services

* Adecco sees 10 million euros in synergies

(Adds shares, analyst quote)

ZURICH, July 26 (Reuters) - Adecco , the world's largest staffing company, said it would buy U.S.-based Drake Beam Morin for an enterprise value of 149 million euros in a bid to improve its career transition and development business

Adecco, which competes with Dutch group Randstad and America's Manpower , said it expected cost synergies of some 10 million euros from the deal within a year.

The acquisition would be combined with Adecco's Lee Hecht Harrison business, allowing it to expand from the United States and France into new markets, it said.

"This is a rather small acquisition ...which does not alter our positive investment case on Adecco. It helps to dampen the overall cyclicality of the business. We confirm our Buy rating," said Vontobel analyst Michael Foeth.

Shares in Adecco were up 0.3 percent at 0759 GMT, compared with a 0.3 percent dip in the sector index .

Drake Beam Morin, which has been principally owned by a private equity firm, generated revenues of 84 million euros in 2010.

(Reporting by Catherine Bosley; Editing by David Cowell)