Optimal Field Services, an industrial services firm based in Geismar with 27 employees, is being acquired by Pineville-based Crest Industries LLC.

The price was not disclosed. However, Crest plans to invest $2 million in equipment.

The deal is Crest’s fourth in Louisiana since 2013. The expansions and acquisitions are generating 180 new direct jobs, more than 220 indirect jobs and the retention of more than 550 existing jobs, according to Gov. John Bel Edwards. Crest also has invested more than $30 million in new capital projects.

Optimal will operate as a Crest subsidiary and remain in the Geismar facility. Optimal will also keep its employees and key management.