Tech Company Financing Transactions

Castelion Funding Round

Castelion, based in Washington, secured $350 million from Altimeter Capital, Lightspeed Venture Partners and private investors.

Transaction Overview

Company Name
Announced On
7/3/2025
Transaction Type
Venture Equity
Amount
$350,000,000
Round
Series B
Investors

Altimeter Capital (Lead Investor)

Lightspeed Venture Partners (Lead Investor)

Proceeds Purpose
Proceeds purposes were not disclosed.

Company Information

Company Status
Private & Independent
Industry
Defense
Mailing Address
Undisclosed
Washington, DC Undisclosed
USA
Phone
Undisclosed
Email Address
Overview
Castelion is bringing a new approach to defense development and production: one that focuses on short, iterative design cycles, rapid testing in development, and modern commercial manufacturing strategies for production at scale. We're designing, building, and testing next generation long range strike weapons systems to give America and its Allies a definitive edge and deter future conflicts.
Profile
Castelion LinkedIn Company Profile
Social Media
Castelion Company Twitter Account
Company News
Castelion News
Facebook
Castelion on Facebook
YouTube
Castelion on YouTube

Management Team

Title
Name
Email & Social
Chief Executive Officer
Bryon Hargis
  Bryon Hargis LinkedIn Profile  Bryon Hargis Twitter Account  Bryon Hargis News  Bryon Hargis on Facebook
Chief Operating Officer
Sean Pitt
  Sean Pitt LinkedIn Profile  Sean Pitt Twitter Account  Sean Pitt News  Sean Pitt on Facebook
Co-Founder
Andrew Kreitz
  Andrew Kreitz LinkedIn Profile  Andrew Kreitz Twitter Account  Andrew Kreitz News  Andrew Kreitz on Facebook


 

 

Browse more venture capital transactions:

Prev: 7/3/2025: Climeworks venture capital transaction

 

Share this article

 


About Our VC Transactions Data

We do our best to report on all VC transactions involving tech companies. VC investment data records reported here are derived from publicly available VC deal announcements. The data comes to us via our partnership with VentureDeal.com, an affiliated venture.

 


Additional Resources for Entrepreneurs

Lists of Venture Capital and Private Equity Firms

Franchise Opportunities

Contributors

Business Glossary