Space Insurance Explained: Underwriting, Coverage, and Risk

Space insurance is a specialized underwriting sector that provides property and liability protection for launch vehicles, payloads, and satellite operations. Policies protect operators and investors against ascent failures, deployment anomalies, and third-party damages governed by international treaties and statutory financial responsibility mandates.

The commercial space insurance market operates through syndicates and global brokers, covering assets through launch, orbit raising, testing, and multi-year orbital operations. Underwriting performance reflects volatility from high-value claims, changing available capacity across global financial hubs, and statutory indemnification regimes established by spaceflight regulators.

Coverage Structure and Policy Operations

Space insurance protects launch providers and satellite operators against physical loss or damage during flight, orbit insertion, and on-orbit operations. Specialized coverage structures exist for each distinct phase of a spaceflight mission. According to Lloyd’s, which provides access to more than 34 space risk insurers, standard launch insurance policies cover the launch, orbit raising, in-orbit testing, commissioning, and a “+1” option covering in-orbit operations for the rest of the year.

Third-party liability policies operate alongside physical property damage coverage. These contracts insure against bodily injury or property damage caused to unrelated third parties during launch, flight, or reentry. Global risk broker Marsh has served space organizations since 1977 and maintains more than 40 space insurance professionals across eight global hubs to structure these coverage programs.

Insurance requirements interface directly with spacecraft engineering. Operators configuring structural platforms, as detailed in our guide to the satellite bus, align flight hardware specifications with underwriter documentation requirements. Satellite operators also evaluate operational lifetime policies, though pricing and terms for advanced concepts such as orbital refueling remain unpublished in reviewed underwriting reports.

Market Underwriting Capacity and Regional Distribution

Global space insurance capacity is distributed across regional underwriting hubs that deploy capital against launch and orbital risks. According to market data from insurance broker Gallagher Specialty, theoretical underwriting capacity in the first quarter of 2026 was distributed across five regional centers:

• United Kingdom: 43 percent
• Europe: 25 percent
• United States: 19 percent
• Dubai: 9 percent
• Asia: 4 percent

Theoretical capacity in early 2026 increased by approximately USD 100 million year on year, representing an expansion of more than 15 percent compared to the prior year. Gallagher Specialty reported competitive capacity around USD 300 million per risk, while projecting that 2026 premium volumes would contract significantly from 2025 levels. Specific premium rates and absolute 2025 premium totals remain unpublished in primary market reports.

Market capacity fluctuates based on underwriting performance and insurer participation. In a Gallagher Specialty Q4 2024 report, the broker noted that about USD 2 billion of claims were notified within an 18-month span, accompanied by departures from Hiscox, Canopius, and Munich Re Syndicates that reduced deployed market capacity.

Conditions shifted in the Gallagher Specialty Q4 2025 update, which characterized market capacity as ample. That report identified new market entrants including Phemis, Aesir Space, Whitecap Aerospace, and Hive entering the sector in 2026, while recording premium rate reductions achieved in the fourth quarter of 2025.

Satellite Claims and Underwriting Loss Experience

Underwriting performance in the space insurance sector varies based on the frequency and severity of on-orbit anomalies. A Gallagher Specialty Q4 2023 update reported USD 826 million of space claims presented in 2023. Over 85 percent of these 2023 losses originated from post-separation spacecraft issues rather than launch vehicle failures. That same update noted that 3 percent of low Earth orbit satellites were insured in 2023, compared to 1 percent in 2021.

A subsequent Gallagher Specialty Q1 2024 update placed the 2023 underwriting year at an overall market loss of approximately USD 900 million against premium income of about USD 550 million. The report identified three-year and five-year average loss ratios across the space insurance market at 100 to 110 percent.

Market loss estimates underwent substantial revisions over subsequent reporting periods:

• Claims for the 2023 and 2024 period were adjusted downward from USD 1.9 billion to USD 1.5 billion.
• The 2025 claims volume was the lowest reported in almost a decade.
• The 2025 underwriting year was on track for approximately USD 500 million in net profit to insurers prior to year-end adjustments.
• On 26 December 2025, the SpainSat NG-2 spacecraft experienced a loss with an insured value exceeding USD 400 million.
• The SpainSat NG-2 claim shifted the 2025 underwriting loss ratio from roughly 15 percent to about 75 percent.

Notable claims in 2023 included losses involving the ViaSat-3 F1 and Inmarsat-6 F2 spacecraft. In its FY2024 Form 10-K, Viasat disclosed that on 12 July 2023 it reported an antenna reflector deployment issue that materially impacted ViaSat-3 F1 performance. In its FY2025 Form 10-K, Viasat stated that Inmarsat-6 F2, launched in February 2023, suffered a power subsystem anomaly reported on 24 August 2023.

According to its Q4 FY24 shareholder letter, Viasat started receiving insurance claims in the fourth quarter of fiscal year 2024 for both Inmarsat-6 F2 and ViaSat-3 F1. Viasat confirmed it had received approximately 65 percent of an anticipated USD 770 million in combined insurance claims for the two spacecraft by 31 March 2024. Investors reviewing corporate financial disclosures can consult our review of Viasat stock for context on company balance sheets and capital allocation.

United States Statutory Third-Party Liability Regime

Commercial space launches conducting operations in the United States operate under a statutory financial responsibility framework established by federal law. Under 51 U.S.C. 50914, launch and reentry licensees must obtain third-party liability insurance or demonstrate financial responsibility to satisfy maximum probable loss calculations determined by the Federal Aviation Administration (FAA).

Federal regulations published under 14 CFR 440.9 mirror these statutory caps:

1. Third-party liability insurance requirements must not exceed the lesser of USD 500 million or the maximum amount available on world markets at reasonable cost.
2. United States Government property damage requirements must not exceed the lesser of USD 100 million or the maximum amount available on world markets at reasonable cost.

Above the primary insurance layer, 51 U.S.C. 50915 provides government indemnification for catastrophic third-party claims. Subject to Congressional appropriation, the United States Government may pay successful third-party liability claims exceeding required primary insurance up to USD 1.5 billion, adjusted for post-1989 inflation. The statute prohibits government indemnification payments in cases involving willful misconduct.

This government indemnification regime is time-limited by statute. Under 51 U.S.C. 50915, indemnification applies only to launch and reentry licenses where complete applications were received by 30 September 2028. Legislative reporting from SpacePolicyOnline noted that a Senate bill proposed extending indemnification from 30 September 2025 to September 2028, aligning with the enacted date in the current statute, while setting a commercial human spaceflight learning period expiration of 1 January 2028.

International Liability and Treaty Standards

Cross-border space operations and orbital damage claims are governed by the Convention on International Liability for Damage Caused by Space Objects, opened for signature on 29 March 1972. The Liability Convention defines the legal standards under which launching states bear legal liability for space object accidents.

The Liability Convention establishes two distinct legal standards based on where damage occurs:

• Article II establishes absolute liability: launching states are absolutely liable to pay compensation for damage caused by their space objects on the surface of the Earth or to aircraft in flight.
• Article III establishes fault-based liability: when damage occurs anywhere other than the surface of the Earth, such as an on-orbit collision involving spacecraft of another launching state, the launching state is liable only if damage is due to its fault or the fault of persons for whom it is responsible.

Procedural timelines and recovery benchmarks are codified in Articles X and XII of the treaty. Under Article X(1), a claim for compensation must be presented to a launching state no later than one year following the date of the occurrence of damage or the identification of the liable launching state. Under Article XII, compensation is determined in accordance with international law and principles of justice and equity, intended to restore the claimant to the condition that would have existed had the damage not occurred.

Further reading on the investing side is in our guide to space economy investing.

Verification and Underwriting Milestones

Market participants and investors monitor key operational and regulatory milestones across the commercial space insurance sector:

1. Tracking theoretical underwriting capacity and competitive capacity limits reported across United Kingdom, European, and United States underwriting hubs.
2. Monitoring loss ratio movements and net underwriting profit margins following major spacecraft anomaly claims.
3. Reviewing low Earth orbit constellation insurance adoption rates relative to traditional geostationary telecommunications satellites.
4. Verifying Congressional action prior to the 30 September 2028 statutory expiration date for United States Government launch indemnification under 51 U.S.C. 50915.

To track market capacity data and underwriting updates, readers can review sector reports directly through the Gallagher Specialty market update site.