On October 5, 2023, Castelion, a new company focused on the rapid development and mass manufacturing of complex defense systems, with an emphasis on schedule, affordability, and scale, announced it has raised a $14.2 million Series Seed funding round co-led by Andreessen Horowitz (a16z) and Lavrock Ventures, with participation from First In, BlueYard Capital, and Champion Hill Ventures. Wilson Sonsini Goodrich & Rosati advised a16z on the transaction.

The funding, in conjunction with existing U.S. Government contracts, will accelerate Castelion's design, build, and test efforts.

The Wilson Sonsini team that advised a16z on the transaction included Rezwan Pavri, Lester Ang, Seth Cowell, Richa Sharma, Barath Chari, and Christopher Murray.

For more information, please see Castelion's news release. Additional coverage can be found on TechCrunch.