Founded in 1993, Investiga is privately owned with 360 employees and generated $20 million of revenue in FY20.
It specialises in the cosmetic and personal care market.
Investiga will be integrated into the existing ALS Life Sciences network with a particular focus on growing in the USA, which represents over a quarter of the global market.
Shares in ALS (ASX:ALQ) are trading 3.79 per cent higher at $9.85.