Alliance Gas Products, Mavry Welding Supply, and Alliance

Welding Supplies are all owned and operated by members of the Rodgers Family.   Marvin Rodgers Jr. and Sharon Rodgers own and operate Alliance Gas Products and Mavry Welding Supply, with a branch in Oakland, CA., and a branch in San Carlos CA..  Their son, Marvin Rodgers, III owns and operates Alliance Welding Supplies with branches in San Jose, Berkeley, Concord, and Livermore, CA.


Started in 1985, Alliance Gas Products has continuously followed Marvin and Sharon’s commitment to growth through customer service.   Mavry Welding Supply was purchased by Sharon Rodgers in 1994, and Alliance Welding Supplies, formerly Janco Welding Supplies, was purchased by Marvin Rodgers, III in 2002. 


 As the largest independent distributor of Industrial, Specialty, Bulk, and Cryogenic Gases, Welding Supplies, and Safety Equipment,  in the San Francisco Bay Area, The Family Business’ are well positioned to continue their growth pattern, while remaining committed to their customers.   The extensive resources of the Alliance Companies, decades of industry experience, and our broad geographic coverage help ensure that our customers always receive the highest quality products, competitively priced, with the personalized attention that can only be found at a family focused business.   The Rodgers, and all of the employees at Alliance thank you for your business, and the opportunity to build new relationships and friendships.


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Corporate Information

Marvin Rodgers, Jr. started his career in the industry in 1964. He held several Executive positions with Chemetron/NCG, BOC/Airco, and Airgas.


Sharon Rodgers has held management positions with Airgas, and other companies outside the Gases industry.


Marvin Rodgers, III learned the business at his parents knee, but left the family business and worked in various sales functions, including Asian Regional Sales Manager, for Thermadyne.  He returned to the family business in 1999.

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Alliance Welding Supplies