Atlassian vs Slack

Atlassian is an Australian enterprise software company that develops products geared towards software developers and project managers. Atlassian is headquartered in Sydney, Australia. On February 14, 2014, Atlassian president Jay Simons announced the opening of an Austin office that will eventually employ 600 people. Atlassian was founded in 2002 by Mike Cannon-Brookes and Scott Farquhar. In 2006, Cannon-Brookes and Farquhar were named Ernst & Young's Entrepreneurs of the Year.

Slack is a team collaboration tool co-founded by Stewart Butterfield, Eric Costello, Cal Henderson, and Serguei Mourachov. The company originally raised nearly $43 million in April 2014. In March 2015, Slack signed a deal with investors to raise up to $160 million in a funding round that values the company at $2.76 billion. New investors include Institutional Venture Partners, Horizons Ventures, Index Ventures and DST Global.