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Get in Touch with Simpson Manufacturing

General Inquiries

Please call (800) 999-5099 or send us an email.

Technical Support Department

Contact us at Ask Simpson for your technical and product questions.

Board of Directors

Stockholders are encouraged to communicate any concerns or suggestions directly to the independent members of the Board of Directors of the Company. Please write to:

Board of Directors
Simpson Manufacturing Company Inc.
P.O. Box 7655
Berkeley, CA 94707

Charitable Giving Guidelines

Are you a non-profit interested in support from Simpson Strong-Tie? Please take a look at our charitable giving priorities and guidelines.

Investor Relations

You can reach Simpson’s Investor Relations by email at or by calling Addo Investor Relations at (310) 829-5400 or at (888) 499-7676.

Transfer Agent and Registrar

Computershare is the Company's transfer agent and can be reached at (877) 282-1168 or Registered Stockholders (Stockholders who have paper stock certificates) should contact Computershare in the event of a name change, a change of address or if their certificate has been lost or stolen.

Computershare Trust Company, N.A.
P.O. Box 30170
College Station, Texas 77842

For stockholder inquiries, please call (877) 282-1168 or visit