Congress Wealth Management, a registered investment advisor in Boston that works with the ultra-wealthy, announced today that it acquired MainLine Private Wealth, a Wynnewood, Pa., firm with $1.1 billion in assets.

With this acquisition, Congress now boasts $6.7 billion in assets and eight offices, including a larger presence in the Philadelphia area, the firm said in a press release.

Congress has offices in cities such as Miami and Avila Beach, Calif.

Paul Lonergan, the CEO at Congress, said in a press release, “Like Congress, MainLine embraces a customized, comprehensive approach to client service that delivers the responsiveness of a small independent firm with the sophistication and breadth of a larger institution.” 

Gary Droz, co-founder and managing director of MainLine, said in a statement, “Congress provides a scaled platform and a shared collaborative and authentic philosophy. As the industry at large gravitates away from commission-based models, this approach should help us attract and retain new business, while providing the perceptive advisory and attentive service clients have come to expect.” 

The firms said the deal closed earlier in September.