Lattice co-founders Eric Koslow (left) and Jack Altman (right). image: Lattice

Lattice, a workplace software startup, has announced it’s raised $45 million in Series D funding led by investment firm Tiger Global, with participation from the likes of Khosla Ventures, Founders Fund, Frontline Ventures, Thrive Capital Partners, and Y Combinator. The investment values Lattice, a five-year-old startup, at $400 million, double its previous valuation of $200 million. With the new funding, Lattice has now raised a total of $94 million in funding since its founding.

Lattice, which is mainly a workplace collaboration and performance management software, is one of many companies that have seen the demand for their products climb during the coronavirus pandemic. Currently, Lattice now has 1,900 enterprise customers and around 200 of its own employees.

Lattice is an alum of famed startup accelerator Y Combinator and was notably co-founded by Jack Altman, a brother to Sam Altman, the former CEO of Y Combinator and current chair of OpenAI.