(Reuters) - French voucher and benefits company Pluxee reported 12.1% organic growth in its first-quarter operating revenue on Wednesday, beating market expectations, supported by a sound net retention rate and continued new client acquisitions.

Its operating revenue was 249 million euros ($257.8 million) in the three months through Nov. 30, beating analysts' average forecast of 244 million euros in a company-provided consensus.

The former benefits unit of Sodexo also confirmed its full-year outlook.

($1 = 0.9657 euros)