Category:Companies based in Hayward, California

• List of companies based in Hayward, California

A

• All Pro Wrestling
• Alphabet Energy
• Ampex
• Annabelle Candy Company
• Anthera Pharmaceuticals

B

• Bianchi (company)
• Bianchi USA
• Black Garlic
• Buffalo Bill's Brewery

C

• Columbus Craft Meats
• ComputerLand

D

• Daily Review
• Dash Robotics, Inc
• Dust Networks

E

• Andy Ernst
• Etec Systems

G

• Gillig

H

• Hunt's

K

• Kosan Biosciences

M

• MDL Information Systems
• Mendel Biotechnology
• Mervyn's
• Mountain Mike's Pizza

O

• Oliver Salt Company

Q

• Qume

R

• Recording King
• Rocket Dog

S

• Sakura Color Products of America
• Shasta (drink)
• Ron Simms
• Star Reach
• Sugar Bowl Bakery

T

• Takaki Bakery