Alcatel
Provides high speed Internet equipment connecting residences and small businesses.

Petaluma

Telecommunications

500 - 999

Centellax
Developer of components for broadband microwave applications and high-speed optical communications.

Santa Rosa

Telecommunications

25 - 99

Cisco
Telecommunications equipment firm.

Petaluma

Telecommunications

100 - 249

Clovis Solutions
Developer of system platform software.

Petaluma

Telecommunications

1 - 24

Eschelon Telecom - Advanced TelCom Group
Provider of telephone services and DSL.

Santa Rosa

Telecommunications

100 - 249

JDS Uniphase
Producer of high-speed fiber optic communication products.

Santa Rosa

Telecommunications

500 - 999

Klamath Networks
Telecommunications access startup.

Rohnert Park

Telecommunications

1 - 24

Meriton Networks
Developers of optical transport technology.

Petaluma

Telecommunications

250 - 499

mFoundry, Inc
mFoundry's award-winning mobile platforms are used by some of the largest banks, payment companies and merchants in the US. The company is a recognized leader in mobile banking and mobile payments.

Larkspur

Telecommunications

25 - 99

Motorola Next Level Communications
Telecomm firm.

Rohnert Park

Telecommunications

250 - 499

Pacific Technologies
Telecommunications firm specializing in PXB implementations.

Santa Rosa

Telecommunications

1 - 24

Sonoma Photonics
Producer of thin film optical products for the telecommunications industry.

Santa Rosa

Telecommunications

25 - 99

Symmetricom
Supplier of network synchronization and timing solutions.

Santa Rosa

Telecommunications

unknown

Tellabs
Telecommunications Equipment Provider.

Petaluma

Telecommunications

100 - 249

Texas Instruments
Producer of high-performance transmission elements for digital communications networks.

Santa Rosa

Telecommunications

25 - 99

Zhone Technologies
Telecommunications firm.

Rohnert Park

Telecommunications

25 - 99