Massachusetts-based Archstone Financial has joined Voya Financial Advisors, the companies announced on Tuesday.

Archstone, which reports $323 million in assets under management, joined Voya from Ameriprise Financial on May 1.

“This group from Ameriprise is a big win for us,” Tom Halloran, president of Voya Financial Advisors, said.

Archstone includes advisors Mark McCormack, Gary Guglielmello, Eric Riggin, Gary Holland, and Aaron Kohl, and has offices in Leominster, Mass. and Worcester, Mass.

Voya Financial Advisors is a broker-dealer that serves a wide range of clients through more than 2,200 advisors.

In 2014, ING Financial Partners was rebranded as Voya Financial Advisors, part of Voya Financial Inc. Voya Financial Inc. manages approximately $511 billion in assets. The company has three business lines: retirement business, investment management and insurance.