Calient Technologies

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Calient Technologies is a company which designs and manufactures photonic optical circuit switching systems that enable optical layer optimization in data centers and software-defined networks. The Company offers S-series optical circuit switches for data center, cloud computing, service provider and government applications, and OEM subsystem solution that operates as a white label optical switching system solution for OEM applications. It also provides LightConnect, a fabric manager that gives the data center operators access to various optical circuit switch nodes.
HQGoleta, CA, US
Employee Ratings3

Latest Updates

Employees (est.) (Sept 2021)61(-1%)
Cybersecurity ratingCMore

Key People/Management at Calient Technologies

Arjun Gupta

Arjun Gupta

Executive Chairman, Director and Acting CEO
Kevin Welsh

Kevin Welsh

Co-President and SVP Operations
Chris SB Lee

Chris SB Lee

E. William Stephenson

E. William Stephenson

VP, Global Service Provider Practice
Shifu Yuan

Shifu Yuan

CTO, Optics
Shannon Carr

Shannon Carr

Vice President of Emerging Markets
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Calient Technologies Office Locations

Calient Technologies has an office in Goleta
Goleta, CA, US (HQ)
25 Castilian Dr
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Calient Technologies Financials and Metrics

Summary Metrics

Founding Date


Calient Technologies total Funding

$453.1 m

Calient Technologies latest funding size

$31.97 m

Time since last funding

2 years ago

Calient Technologies investors

Calient Technologies's latest funding round in August 2019 was reported to be $32 m. In total, Calient Technologies has raised $453.1 m
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Calient Technologies Operating Metrics

Jul, 2013Mar, 2019

Optical Terminations Shipped

80 k



Product Lines

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Calient Technologies Cybersecurity Score

Cybersecurity ratingPremium dataset



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Calient Technologies Online and Social Media Presence

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Calient Technologies Blogs

CALIENT at SC18 – Automating The World’s Fastest Temporary Network – And while we’re at it, let’s do it at 400GbE (or “These go to Eleven”!)

Over the past few months, I have had the privilege of working with the SCinet WAN team to design and build the network that would support this year’s Supercomputing conference (SC18) in Dallas, TX.  SCinet, dubbed “the world’s fastest temporary network” delivered 4.02 terabits per second of capacity…

CALIENT S320 OCS Plays Critical Role in “The World’s Fastest Network” – SCinet 2018

SC320 optical circuit switch (OCS) adds connectivity flexibility to SCinet allowing network reconfiguration without the need for re-fibering; OCS also played key role in building a fiber-once network test infrastructure Santa Barbara, CA,Nov. 7, 2018 — CALIENT Technologies, Inc., the global leader f…

Calient Technologies Frequently Asked Questions

  • When was Calient Technologies founded?

    Calient Technologies was founded in 1999.

  • Who are Calient Technologies key executives?

    Calient Technologies's key executives are Arjun Gupta, Kevin Welsh and Chris SB Lee.

  • How many employees does Calient Technologies have?

    Calient Technologies has 61 employees.

  • Who are Calient Technologies competitors?

    Competitors of Calient Technologies include APCON, RMR Electric and MOONS'​ Industries America.

  • Where is Calient Technologies headquarters?

    Calient Technologies headquarters is located at 25 Castilian Dr, Goleta.

  • Where are Calient Technologies offices?

    Calient Technologies has an office in Goleta.

  • How many offices does Calient Technologies have?

    Calient Technologies has 1 office.