Any info on these 2 firms?

The first one is a public co, www.seic.com the second I think is a prop trading mgmt co, Cooperneff. I am just wondering if anyone knows anything about these 2 outside of what's on their websites. Any info would be most appreciated tia.

 

Sounds like a specialist firm on the NYSE.

 

seic is a pension manager for private companys.

 

Cooper is a trading firm owned by BNP Paribas. Located in suburban Philadelphia. Highly quant oriented.