Two companies, one man: Dorsey, Jobs and not many more (pictures)

Can Jack Dorsey run Twitter and Square at the same time?

James Martin Managing Editor, Photography

James Martin is the Managing Editor of Photography at CNET. His photos capture technology's impact on society - from the widening wealth gap in San Francisco, to the European refugee crisis and Rwanda's efforts to improve health care. From the technology pioneers of Google and Facebook, photographing Apple's Steve Jobs and Tim Cook, Facebook's Mark Zuckerberg and Google's Sundar Pichai, to the most groundbreaking launches at Apple and NASA, his is a dream job for any documentary photography and journalist with a love for technology. Exhibited widely, syndicated and reprinted thousands of times over the years, James follows the people and places behind the technology changing our world, bringing their stories and ideas to life.

Expertise photojournalism, portrait photography, behind-the-scenes Credentials

2021 Graphis Photography Awards, Gold Award, Journalism, 'The Doorway' Graphis Photography Awards, Silver Award, Portrait, 'Cast of film '1917'' Graphis Photography Awards, Silver Award, Environmental, 'Upper Lola Montez' ND Awards, Architecture, 'Taj Mah

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James Martin

Oct. 5, 2015 6:53 a.m. PT

1 of 4 James Martin/CNET

Jack Dorsey

Twitter has made co-founder Jack Dorsey the company's permanent CEO, for the second time. He'll also keep his CEO role at the mobile payments company Square, which he founded in 2009. He joins a small group of people who have run two companies at one time.

2 of 4 Monica M. Davey/epa/Corbis

Steve Jobs

Steve Jobs ran both Apple and animation studio Pixar. Like Dorsey, Jobs was ousted from the company he founded and later returned as interim, then permanent, CEO.

3 of 4 Daniel Karmann/dpa/Corbis

Carlos Ghosn

Carlos Ghosn is CEO of Japan's Nissan and France's Renault, both carmakers. He also set up the Renault-Nissan Alliance, a strategic partnership between both companies. Similarly, Dorsey has tried to build bridges between Twitter and Square, including a service that lets people on Twitter donate to political campaigns through Square.

4 of 4 Patrick T. Fallon/Reuters/Corbis

Elon Musk

Elon Musk is CEO of electric car maker Tesla and rocket company SpaceX. Like Musk, Dorsey will face questions about how he divides his time between the companies, said Jeffrey Sonnenfeld, a professor at the Yale School of Management.