NEWPORT BEACH, Calif.--(BUSINESS WIRE)--Alliant Insurance Services, the nation’s largest specialty insurance brokerage firm, is joining forces with Chicago-based Mesirow Insurance Services (MIS). A ...

NEWPORT BEACH, Calif.--(BUSINESS WIRE)--Alliant Insurance Services, the nation’s largest specialty insurance brokerage firm, today announced the acquisition of Mary Roach Insurance Agency, Inc. (MRI).

As the fastest growing among the top ten largest U.S. corporate insurance, risk management, and employee benefits brokerage and consulting services firms, Alliant Insurance Services, Inc. is excited ...

Sheila Lowe has joined Alliant Insurance Services as Producer within its Employee Benefits Group. Based in Portland, Maine, ...

NEWPORT BEACH, Calif.--(BUSINESS WIRE)-- Alliant Insurance Services, the nation’s largest specialty insurance brokerage firm, has announced that Jon Ostrau has joined its Alliant Americas division as ...

Public Sector Pension Investment Board (PSP Investments) has invested in Alliant Insurance Services Inc, a Newport Beach, California-based specialty insurance brokerage. Terms weren’t disclosed for ...

Alliant Insurance Services Named Best Insurance Provider by Hedge Fund Leaders for Six Consecutive Years; Sweeps Broker Award Every Year of the Decade The HFM US Services Awards 2025, presented by ...

Exceptional growth and expansion place Alliant among the nation’s top-performing firms Alliant Insurance Services has once again been named one of Insurance Business America’s Fast Brokerages. This ...

Jessie Guerrero has joined Alliant Insurance Services as Senior Vice President, Energy & Marine. Located in the Houston office, Guerrero strengthens the depth of experience of the Alliant Energy & ...

Honorees from across the U.S. recognized for contributions to the insurance industry and professional achievements "We are proud to celebrate the accomplishments of our 2025 Elite Women, whose ...

"Alliant is committed to providing midsized businesses with a powerful mix of service, industry expertise, and innovative thinking that moves them forward," said Tom Corbett, Chairman and CEO of ...