Our People

Pinnacle prides itself on the work and expertise of our consultants, who are world-class experts who have helped create some of the profession’s best practices in their areas of focus. While being industry leaders, each of us is often most satisfied when we can develop innovative solutions that meet a client’s unique needs—and then communicate that knowledge and insight in ways customers can understand and appreciate.

Each of our Principals and Consultants practices our mission of Commitment Beyond Numbers with every client and every engagement. Click each of the links below to learn more about who we are, what we do and how we help clients meet their unique challenges.

Leadership

Joseph A. Herbers

Joseph A. Herbers

ACAS, MAAA, CERA
Managing Principal


Office Phone: (309) 807-2310
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Derek W. Freihaut

Derek W. Freihaut

FCAS, MAAA
Principal and Consulting Actuary


Office Phone: (309) 807-2313
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Roosevelt C. Mosley Jr.

Roosevelt C. Mosley Jr.

FCAS, MAAA, CSPA
Principal and Consulting Actuary


Office Phone: (309) 807-2330
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Arthur R. Randolph II

Arthur R. Randolph II

FCAS, MAAA, CPCU, ARM, ARe
Principal and Consulting Actuary


Office Phone: (678) 894-7258
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Robert J. Walling III

Robert J. Walling III

FCAS, MAAA, CERA
Principal and Consulting Actuary


Office Phone: (309) 807-2320
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Senior Consultants

Linda K. Brobeck

Linda K. Brobeck

FCAS, MAAA
Senior Consulting Actuary


Office Phone: (415) 692-0261
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Timothy C. Mosler

Timothy C. Mosler

FCAS, MAAA
Senior Consulting Actuary


Office Phone: (678) 894-7254
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Consultants

Erich A. Brandt

Erich A. Brandt

FCAS, MAAA
Consulting Actuary


Office Phone: (309) 807-2311
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Zachary T. Brogadir

Zachary T. Brogadir

FCAS, MAAA
Consulting Actuary


Office Phone: (630) 457-1582
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Michael K. Chen

Michael K. Chen

FCAS, MAAA
Consulting Actuary


Office Phone: (515) 661-5469
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Gregory W. Fears, Jr.

Gregory W. Fears, Jr.

ACAS, MAAA, ARM
Consulting Actuary


Office Phone: (309) 807-2316
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Legaré W. Gresham

Legaré W. Gresham

FCAS, MAAA
Consulting Actuary


Office Phone: (678) 367-2683
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Aaron N. Hillebrandt

Aaron N. Hillebrandt

FCAS, MAAA, CPCU, CLF, FFSI, FLMI, LPCS, AINS
Consulting Actuary


Office Phone: (309) 807-2312
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Christopher M. Holt

Christopher M. Holt

ACAS, MAAA
Consulting Actuary


Office Phone: (678) 894-7265
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Thomas R. Kolde

Thomas R. Kolde

FCAS, MAAA
Consulting Actuary


Office Phone: (630) 397-5233
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Jing Liu

Jing Liu

FCAS, MAAA
Consulting Actuary


Office Phone: (415) 692-0937
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Laura A. Maxwell

Laura A. Maxwell

FCAS, MAAA
Consulting Actuary


Office Phone: (415) 692-0938
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Brett A. Parmenter

Brett A. Parmenter

FCAS, MAAA
Consulting Actuary


Office Phone: (630) 457-1296
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Darcie R. Truttmann

Darcie R. Truttmann

ACAS, MAAA
Consulting Actuary


Office Phone: (309) 807-2325
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John E. Wade

John E. Wade

ACAS, MAAA
Consulting Actuary


Office Phone: (317) 889-5760
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Kathryn A. Walker

Kathryn A. Walker

FCAS, MAAA, CPCU
Consulting Actuary


Office Phone: (630) 457-1298
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Gary C. Wang

Gary C. Wang

FCAS, MAAA
Consulting Actuary


Office Phone: (309) 807-2331
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Radost Wenman

Radost Wenman

FCAS, MAAA
Consulting Actuary


Office Phone: (415) 692-0260
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Terrence D. Wright

Terrence D. Wright

ACAS, MAAA
Consulting Actuary


Office Phone: (678) 894-7256
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Independent Contractors

LeRoy Boison

LeRoy Boison

FCAS, MAAA
Independent Contractor and Consulting Actuary


Office Phone: (516) 287-4330
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Steven G. Lehmann

Steven G. Lehmann

FCAS, FSA, FCIA, MAAA
Independent Contractor and Consulting Actuary


Office Phone: (309) 807-2302
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