Wilson Elser’s top lobbying group in New York has joined Jackson Lewis, the firms said in a joint statement on Wednesday.

The group had practiced at Wilson Elser for 21 years. It includes 39 professionals — 24 of whom are attorneys — and advises on government relations, health care and compliance issues, the firms said.

The deal, effective Sept. 1, is expected to bring in around $13 million in revenue, according to Jackson Lewis. The firm grossed $407 million in 2015, according to The American Lawyer.

“We have a large number of clients in New York and they would like to have their voice heard in various levels of the government,” said Jackson Lewis chair Vincent Cino.

Kenneth Shapiro, who leads the lobbying group, said in a statement: “This is a constantly changing business and we came to the conclusion that Jackson Lewis is a strong fit for our work going forward.”

Cino said that discussions between the group and Jackson Lewis extended back eight months and started with a conversation between Lisa Marello from Wilson Elser and Will Anthony of Jackson Lewis.

“They started talking and just re-acquainted themselves,” said Cino. He declined to disclose the group’s clients.

The news was earlier reported by the New York Law Journal .

Jackson Lewis, which has 755 lawyers, has offices in Albany, New York City, Long Island, and White Plains.

In November of 2015, Wilson Elser’s  lobbying practice experienced a shakeup  as it lost a spate of new partners but also recruited new blood.     

[Image “BLB Newsletter image (LARGE)" (src=https://bol.bna.com/wp-content/uploads/2016/06/BLB-Newsletter-image.png)]