Appian Corporation is an American cloud computing and enterprise software company headquartered in McLean, Virginia, part of the Dulles Technology Corridor.

[3] Appian was founded in 1999 by Michael Beckley, Robert Kramer, Marc Wilson and Matthew Calkins, who is CEO.

[16] In 2022, Appian started highlighting the importance of low-code tools in improving environmental, social & corporate governance (ESG).

That same month, Appian started the free #lowcode4all program to help provide access to low-code education and certification for developers.

[28] On January 7, 2020, Appian announced acquisition of Novayre Solutions SL, developer of the Jidoka robotic process automation (RPA) platform.