Calient Technologies Raises $10 Million

Calient Technologies Inc., a Santa Barbara, Calif.-based provider of photonic switching solutions, has raised $10 million in new funding. It also named Arjun Gupta, founder of TeleSoft Partners and an existing Calient shareholder, as chairman.


CALIENT Technologies, Inc., the global leader in photonic switching today announced it is raising an expansion-financing round, and has named Arjun Gupta as Chairman and Gregory Koss as chief executive officer. The moves follow CALIENT’s recent announcement of its new “CALIENT 3D MEMS Inside” company strategy.

The company is raising an expansion-financing round of $10 million, including support from its major existing investors. New Chairman Arjun Gupta is a long time CALIENT investor and founder and Managing Partner of Telesoft Partners and new CEO Gregory Koss is a veteran in the technology industry who has extensive experience in rebuilding companies. The company has also changed its name to CALIENT Technologies to better reflect its strategy.

“This round of funding will be instrumental as CALIENT prepares to expand and enter into new markets with our CALIENT 3D MEMS Inside strategy,” Gupta said. “I’ve long been a part of CALIENT, but with the addition of Gregory and the company’s new CALIENT 3D MEMS Inside strategy, I’ve never been more excited about the opportunity that the company has than now.”

Arjun Gupta is the founder of TeleSoft Partners, a special situations venture capital firm focused on high-tech and energy companies. He has more than 20 years of experience working with technology companies in venture capital, consulting and design engineering roles, and manages capital commitments of more than $625 million. Over the last 16 years, Arjun has overseen investing in and helping build more than 60 private companies, resulting in 35 mergers & acquisitions and IPOs.

Gregory Koss joins CALIENT from BTI Systems where he served as Senior Advisor and Executive Chairman and CEO. During his time at BTI Systems, Koss grew revenues at the company from $10 million to more than $50 million. Koss has a history of success with a variety of wireline, wireless and optical networking companies, including SavaJe Technologies, Warburg Pincus, Reef Point Systems, CIENA, Internet Photonics, Nortel and Sonoma Systems, among others and has raised more than $175M in venture capital from more than 20 sponsors since 1998.

CALIENT’s technology is based on its patented deep-silicon plasma etch process technology that is used to make 3D MEMS mirrors. With this process, the company is able to develop products that lead the industry in performance and manufacturing cost. The company designs and fabricates it systems using the state of art MEMS equipment in its fabrication facility located at its corporate headquarters in Santa Barbara, CA.

About CALIENT Technologies

Headquartered in Santa Barbara, California, CALIENT Technologies is the global leader in adaptive photonic switching with systems that build service providers, cloud computing, content delivery and government networks for today’s content explosion. CALIENT’s 3D MEMS switches have demonstrated years of reliability, with eight years of successful continuous operation at large companies in diverse markets. With more than 70,000 optical terminations shipped, CALIENT has one of the largest installed bases of photonic switches worldwide. For more information visit us at or contact us at