Onebrief, a defense technology company based in Honolulu, has announced a $20 million Series C extension led by Battery Ventures, nearly doubling Onebrief’s valuation to $1.1 billion within three months. The funding builds on the momentum of Onebrief’s rapid adoption within the U.S. defense community, where it works to provide a modern tool , Onebrief successfully secured a $20 million Series C extension, propelling its valuation to an impressive $1.1 billion. This latest funding round was led by Battery Ventures, nearly doubling its valuation in just three months., Onebrief, a startup reshaping operational planning and staff collaboration in the military domain, has announced a $20 million Series C extension round led by Battery Ventures. The raise brings the company’s valuation to $1.1 billion—an extraordinary leap from $650 million just three months ago—cementing its position among a select group , Onebrief, a Honolulu, HI-based provider of software for military staff collaboration and operational planning, raised $20M Series C extension funding, at $1.1 Billion Valuation.. The round was led , Businesswire--Onebrief, the leading software for military staff collaboration and operational planning, today announced a $20 million Series C extension led by Battery Ventures. This funding round scales the company’s valuation to $1.1 billion, an increase from the $650M valuation achieved three months prior in Onebrief’s Series C., .