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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.

Investor Relations

You can reach Simpson’s Investor Relations by email at or by calling Addo Investor Relations at +1 (310) 829-5400 or at +1 (888) 499-7676.