Funding

CubeCab submitted a Phase II application under the Department of Energy's STTR program. This follows earlier public comments about waiting for the Phase II NOFO and working on the proposal through summer and early fall 2026. The effort appears tied to the company's nuclear thermal launch vehicle research.

CubeCab submitted a Phase II application under the Department of Energy's STTR program. This follows earlier public comments about waiting for the Phase II NOFO and working on the proposal through summer and early fall 2026. The effort appears tied to the company's nuclear thermal launch vehicle research.

Astra Space, now private after a 2024 take-private at $11.25 million valuation following Rocket 3 failures, is raising $250 million at a $1 billion valuation to fund Rocket 4 development and scale its satellite propulsion business. Rocket 4 is an expendable larger vehicle targeting operational launches from 2027 with a projected $5 million price point. The company has grown its thruster sales and previously raised $80 million post-privatization for settlements and refinancing.

Astra Space, now private after a 2024 take-private at $11.25 million valuation following Rocket 3 failures, is raising $250 million at a $1 billion valuation to fund Rocket 4 development and scale its satellite propulsion business. Rocket 4 is an expendable larger vehicle targeting operational launches from 2027 with a projected $5 million price point. The company has grown its thruster sales and previously raised $80 million post-privatization for settlements and refinancing.

Portal Space Systems closed a $50M Series A on April 9, 2026, led by Geodesic Capital and Mach33, with Booz Allen Ventures, ARK Invest, AlleyCorp, and FUSE participating, valuing the company at $250M. Total funding including $45M in prior military strategic investment now stands at ~$117.5M. Capital will fund headcount scaling to ~100, a 52,000 sq ft Bothell manufacturing facility, and Starburst-1 launch preparation for SpaceX Transporter-18 in Q4 2026. Portal's HEX Thruster (Flare) passed thermal vacuum testing at operational temperatures in September 2025 — the first commercial solar thermal propulsion test. Starburst-1 will demonstrate rendezvous and proximity operations (RPO) and rapid retasking.

Portal Space Systems closed a $50M Series A on April 9, 2026, led by Geodesic Capital and Mach33, with Booz Allen Ventures, ARK Invest, AlleyCorp, and FUSE participating, valuing the company at $250M. Total funding including $45M in prior military strategic investment now stands at ~$117.5M. Capital will fund headcount scaling to ~100, a 52,000 sq ft Bothell manufacturing facility, and Starburst-1 launch preparation for SpaceX Transporter-18 in Q4 2026. Portal's HEX Thruster (Flare) passed thermal vacuum testing at operational temperatures in September 2025 — the first commercial solar thermal propulsion test. Starburst-1 will demonstrate rendezvous and proximity operations (RPO) and rapid retasking.

On April 1, 2026, SpaceX submitted a confidential draft registration statement to the SEC, confirmed by Bloomberg and CNBC, targeting a June Nasdaq listing. Initial valuation guidance was $1.75 trillion with a targeted $75 billion raise; by April 6 investor testing-the-waters meetings pushed the target above $2 trillion — what would be the largest IPO in history, tripling Saudi Aramco's $25.6 billion 2019 record. The company merged with Elon Musk's xAI in February 2026, combining space, satellite, and AI assets. Starlink generates an estimated $8.2 billion in annual revenue. Public S-1 expected in late April–May, ahead of OpenAI and Anthropic listings.

SpaceX confidentially submitted draft IPO registration documents to the U.S. Securities and Exchange Commission on April 1, 2026, targeting a June 2026 listing. The filing was confirmed by Bloomberg, CNBC, Reuters, and the Wall Street Journal. The company is seeking a valuation of up to $1.75 trillion and aims to raise as much as $75 billion — which would surpass Saudi Aramco's $29 billion 2019 debut as the largest IPO in history. Bank of America, Citigroup, Goldman Sachs, JPMorgan, and Morgan Stanley are lined up as senior underwriters. The valuation is anchored primarily by Starlink, which ended 2025 with 9.2 million subscribers and over $10 billion in revenue, now crossing 10 million subscribers as of February 2026. A prior all-stock merger with xAI pushed the combined entity valuation to approximately $1.25 trillion before the IPO premium.

SpaceX confidentially submitted draft IPO registration documents to the U.S. Securities and Exchange Commission on April 1, 2026, targeting a June 2026 listing. The filing was confirmed by Bloomberg, CNBC, Reuters, and the Wall Street Journal. The company is seeking a valuation of up to $1.75 trillion and aims to raise as much as $75 billion — which would surpass Saudi Aramco's $29 billion 2019 debut as the largest IPO in history. Bank of America, Citigroup, Goldman Sachs, JPMorgan, and Morgan Stanley are lined up as senior underwriters. The valuation is anchored primarily by Starlink, which ended 2025 with 9.2 million subscribers and over $10 billion in revenue, now crossing 10 million subscribers as of February 2026. A prior all-stock merger with xAI pushed the combined entity valuation to approximately $1.25 trillion before the IPO premium.

GalaxySpace filed for IPO tutoring with the China Securities Regulatory Commission on March 31, 2026, with Huatai United Securities as adviser — the formal pre-listing step for a domestic A-share offering. The filing joins a wave of Chinese commercial space IPO ambitions: LandSpace's STAR Market application was accepted December 2025 (seeking 7.5B yuan), Spacety began tutoring in February 2026, MinoSpace filed guidance in September 2025, and CAS Space entered tutoring in January 2026. GalaxySpace recently completed a Series C and has launched 40+ satellites for its Galaxy broadband constellation.

Bellatrix Aerospace closed $20M in pre-Series B funding led by Cactus Partners. The capital will accelerate manufacturing and delivery of its electric propulsion systems for smallsats and orbital transfer vehicles.

Starcloud closed $170M (Series B) to deploy its first orbital data center prototypes. The round values the company at $1.1B and funds in-space power, thermal management, and laser comms infrastructure for low-latency orbital compute.

Bellatrix Aerospace closed $20M in pre-Series B funding led by Cactus Partners. The capital will accelerate manufacturing and delivery of its electric propulsion systems for smallsats and orbital transfer vehicles.

Starcloud closed $170M (Series B) to deploy its first orbital data center prototypes. The round values the company at $1.1B and funds in-space power, thermal management, and laser comms infrastructure for low-latency orbital compute.

Xona Space Systems closed an oversubscribed $170M Series C led by Mohari Ventures Natural Capital (with Craft Ventures, ICONIQ, Woven Capital, NGP Capital, Samsung Next, Hexagon). Funds will scale the Pulsar constellation and new Burlingame factory for resilient centimeter-accurate navigation as a GPS alternative.

Xona Space Systems closed an oversubscribed $170M Series C led by Mohari Ventures Natural Capital (with Craft Ventures, ICONIQ, Woven Capital, NGP Capital, Samsung Next, Hexagon). Funds will scale the Pulsar constellation and new Burlingame factory for resilient centimeter-accurate navigation as a GPS alternative.

Arinna closed a $4M seed round led by Spacecadet Ventures (with Anorak Ventures and Breakthrough Energy Foundation). Capital will fund qualification panels, orbital demos by end of 2026, and scale roll-to-roll manufacturing toward megawatt-class production by 2028.

Arinna closed a $4M seed round led by Spacecadet Ventures (with Anorak Ventures and Breakthrough Energy Foundation). Capital will fund qualification panels, orbital demos by end of 2026, and scale roll-to-roll manufacturing toward megawatt-class production by 2028.

Sierra Space raised $550M in Series C equity on March 5, 2026, led by LuminArx Capital Management with participation from General Atlantic, Coatue, Moore Strategic Ventures, and Andalusian Private Capital, valuing the company at $8 billion post-money. The round arrives as Sierra Space executes a $740M SDA Tranche 2 contract (18 missile-warning satellites, three months ahead of schedule) and a classified $450M national security award. CEO Dan Jablonsky, who replaced founder Fatih Ozmen in February 2026, is tasked with transitioning the company from development-heavy to high-rate manufacturing. Dream Chaser demo flight is now targeted for late 2026 as a free-flight uncrewed demonstration rather than ISS resupply.