Lilian Vanvieldt is a 30-year insurance industry veteran who serves as Alliant’s Executive Vice President and Chief Diversity, Equity & Inclusion Officer (CDEIO). As the head of Alliant’s Diversity, Equity & Inclusion (DE&I) initiative, Vanvieldt leads a companywide effort focused on promoting DE&I within Alliant and throughout the broader insurance industry through awareness, training, mentoring, and career development. In addition to her role as CDEIO, Vanvieldt is one of the nation’s leading brokers in the education space. She currently leads the Alliant Kindergarten to Community College (K-14) Public Entity program and plays an influential role in setting the program’s national business strategy. A proud survivor of stage III breast cancer, Vanvieldt currently serves as Director of the Susan G. Komen Leadership Foundation in San Diego and was the organization’s Honorary Breast Cancer Survivor of the Year in 2018. She holds a bachelor’s degree in Economics and History from the University of California, Los Angeles.

Diana Kiehl serves as Chief Administrative Officer of Alliant Insurance Services, Inc. In this position, she partners with key executives to broaden sales and service best practices within the company’s numerous specialty groups and practices. In addition, she oversees the company’s corporate risk management and professional development departments. Kiehl also is the executive sponsor for the national philanthropy program and leadership development program. She joined Alliant in 1991 as an associate producer and was promoted to producer in 1993, helping to build such specialty programs as the Owner-Controlled Insurance Program (OCIP) and the Hospital All Risk Property Program (HARPP). Subsequently, she held several management positions with the company, and in 2006 was promoted to Managing Director of Brokerage Services. Kiehl earned a bachelor’s degree from California State University, Long Beach, a master’s degree from Pepperdine University, and attended Wharton’s Management Education Program.

Peter Arkley serves as President of Alliant Specialty. He is responsible for development and implementation of the specialty business and financial strategy. Alliant Specialty includes Aviation, Agribusiness, Construction, Environmental, Financial Institutions, Healthcare, Management Liability, Marine and Energy, Mergers and Acquisitions/Transactional Liability, Public Entity and Real Estate operations.

Arkley joined Alliant Insurance Services, Inc. in 2011 and brought together the premier construction risk management talent in the United States. Prior to joining Alliant, Arkley served as Chief Executive Officer of the construction operations at Aon, an international insurance brokerage firm. Prior to joining Aon in 1994, Arkley held senior executive positions with Marsh & McLennan and Johnson & Higgins in New York and Los Angeles. He began his career in 1977 with American International Group where his central focus was financial services products such as directors and officers and fiduciary liability insurance.​

Sean McConlogue serves as President of Alliant Underwriting Solutions and has more than 20 years of experience in the insurance industry, with particular emphasis on specialty program development. Before joining the company in 2003, McConlogue served as President of Affinity Insurance Services, LLC, and prior to that held senior-level management positions with Tristar Insurance Services, Arthur J. Gallagher & Co., and Xerox Corporation. McConlogue earned a bachelor’s degree in economics from the University of California, San Diego and a master’s degree in international management from Thunderbird, The American Graduate School of International Management.

As President of Alliant’s Employee Benefits Group, Kevin Overbey directs the ongoing growth and expansion of the national division. Since 2010, Overbey’s leadership in Alliant’s collaborative culture has cultivated the division’s remarkable growth from $100M to $600M while expanding its footprint to serve local regions across the nation. With 30 years in the employee benefit services industry and experience with a wide span of both domestic and international clients, Overbey leads the division with a compelling vision in pursuit of healthcare delivery transformation through data-driven value and efficiency. This vision propels Alliant’s teams to help employers drive innovation and service while engaging their people to drive sustainable outcomes. Prior to joining Alliant, Overbey was a founding and managing partner of ClearPoint (acquired by Alliant in 2008), an employee benefits consulting and brokerage firm, and one of the largest privately held insurance brokers in the Pacific Northwest. Overbey is a graduate of Oregon State University.

Michael Cusack is one of the leading executives within the surety and construction insurance industry in the United States. His 30 years of experience include extensive background in underwriting, account leadership, and brokering of some of the largest and most complex surety programs in the nation. Cusack played a pivotal role in the formation of the construction operations for Alliant Insurance Services. He joined Alliant in 2011 and helped create what is now the largest construction brokerage organization in the country. Given the track record of attracting and developing industry-leading broker talent, Cusack was named the Co-Chief Operating Officer of Alliant Specialty Group. Alliant Specialty has flourished through the global pandemic, and in 2022 Cusack was named the Senior Managing Director to lead Alliant Specialty. In this role, he is responsible for expanding Alliant’s $800M specialty business across the United States. Prior to joining Alliant, Cusack was a Managing Director, Contract Surety practice leader, and Executive Committee member within Aon Risk Services’ construction unit. Prior to this experience, Cusack worked with Willis as a surety broker and initiated his career as a contract surety underwriter with Seaboard Surety.

Bob Bennetsen
Executive Vice President, Senior Managing Director
Alliant Americas