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Founded Year



Dead | Dead

Total Raised


About Circa

Circa is a mobile news app that provides users with up-to-date news updates on diverse topics.

Headquarters Location

1475 Folsom Street Suite 200

San Francisco, California, 94103,

United States

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Research containing Circa

Get data-driven expert analysis from the CB Insights Intelligence Unit.

CB Insights Intelligence Analysts have mentioned Circa in 1 CB Insights research brief, most recently on Oct 12, 2022.

Circa Patents

Circa has filed 1 patent.

The 3 most popular patent topics include:

  • Medical equipment
  • Surgical removal procedures
  • Anesthesia
patents chart

Application Date

Grant Date


Related Topics




Digestive system surgery, Organs (anatomy), Surgery, Robotics, Digestive system


Application Date


Grant Date



Related Topics

Digestive system surgery, Organs (anatomy), Surgery, Robotics, Digestive system



Circa Frequently Asked Questions (FAQ)

  • When was Circa founded?

    Circa was founded in 2012.

  • Where is Circa's headquarters?

    Circa's headquarters is located at 1475 Folsom Street, San Francisco.

  • What is Circa's latest funding round?

    Circa's latest funding round is Dead.

  • How much did Circa raise?

    Circa raised a total of $4.69M.

  • Who are the investors of Circa?

    Investors of Circa include Sinclair Broadcast Group, Quotidian Ventures, David Cohen, Daniel Lieberman, Bre Pettis and 53 more.

  • Who are Circa's competitors?

    Competitors of Circa include Bio-Sep.

Compare Circa to Competitors

Nova Pangaea Technologies

Nova Pangaea Technologies develops technology that processes non-food biomass such as waste timber, straw, or other crop waste and uses it as a basis for chemicals or bio-ethanol. It provides sustainable bio-based products to customers in the chemicals, energy, transport, food and drink, manufacturing, and construction sectors. The company was founded in 2008 and is based in Redcar, U.K.


Bio-Sep develops an ultrasonic technology capable of converting lignocellulosic biomasses (e.g. hard and softwoods and potentially straws, grasses, and more) efficiently, cleanly, and economically into cellulose, sugars, and lignin. The process is designed to be modular and scalable, allowing for continuous production units of any size tailored to suit the needs of feedstock producers, chemical processors, and product manufacturers. Bio-Sep was founded in 2007 and is based in Southampton, England.

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