DeMatteo Research is a one of the oldest expert networks. DeMatteo Research was founded in 1997 as a general investment research company.
In 2009, DeMatteo Research struck an exclusive partnership with LinkedIn. This was predicted to give DeMatteo an advantage over GLG and other newly started networks, however it does not seem to have materialized. Today, DeMatteo operates a medium-sized expert network business, primarily serving US-based buy-side firms.