Spire Global: A Satellite Data Company After Selling Its Biggest Unit

Spire Global is a useful case study for anyone who wants to understand the space data business without the noise of rocket launches. The company builds shoebox-sized satellites, listens to radio signals from orbit and turns them into subscriptions: where ships and aircraft are, what the atmosphere is doing, where a radio emitter is located. It went public through a SPAC in 2021, struggled with debt and a falling share price, and then made the unusual decision to sell its largest product line. This article covers how the company was funded, what it sells now, and what its 2026 figures say about the smaller business. It is part of the Kurums Space Economy hub, our guide to the companies and business models of commercial space.

How did Spire Global start?

Spire was founded in June 2012 in San Francisco as NanoSatisfi by Peter Platzer, Joel Spark and Jeroen Cappaert, who met at the International Space University. Its first project, a pair of educational CubeSats, was funded by a Kickstarter campaign that raised $106,330.

Those first satellites were deployed from the International Space Station in November 2013. The founders then moved from education to commercial data. The Lemur satellite, a three-unit CubeSat carrying radio receivers, became the standard platform, and the company set up its own manufacturing in Glasgow, Scotland, in 2015 so that it could build and replace satellites continuously instead of buying them.

Venture funding followed the technical progress. According to the company’s Wikipedia history, a $1.5 million seed round in February 2013 was followed by a $25 million Series A led by RRE Ventures in July 2014, a $40 million Series B led by Promus Ventures in June 2015 and a $70 million Series C in 2017 led by the Luxembourg Future Fund, which brought total funding to $140.5 million. The Luxembourg investment came with a European base: the company opened operations there in 2018, and its weather and maritime units were run from the Grand Duchy. The 100th Lemur was launched in April 2019.

What does Spire sell, and to whom?

Spire sells data subscriptions and satellite services. Its receivers collect aircraft position signals, atmospheric measurements made from navigation satellite signals, and radio-frequency emissions, and it also builds and operates satellites for other organizations.

The weather product rests on a technique called radio occultation: measuring how GPS-type signals bend as they pass through the atmosphere, which yields temperature and humidity profiles that improve forecasts. Government weather agencies buy this data, and the company reported new awards from the US National Oceanic and Atmospheric Administration for radio occultation and ocean winds data alongside its 2025 results. Aviation data comes from the position broadcasts that aircraft transmit.

The fastest-moving line in 2026 is radio-frequency geolocation, which locates and characterizes emitters on the ground or at sea. It is primarily a defense and security product. The company said it signed four new international customers for it in the second quarter of 2026. The services line, sometimes called space as a service, lets a customer fly its own sensor on a Spire-built satellite and receive the data through Spire’s ground network without owning a space programme.

This is a different model from imaging companies. The operators in our Planet Labs company story and ICEYE company story sell pictures and radar imagery from larger, more expensive satellites. Spire sells signals intelligence and atmospheric data from very small ones, which keeps capital needs low but also limits pricing power.

What happened when Spire went public?

Spire merged with the blank-cheque company NavSight Holdings and began trading on the New York Stock Exchange under the ticker SPIR on 17 August 2021. The deal brought in roughly a quarter of a billion dollars, most of it from a private placement.

The Luxembourg Space Agency reported gross proceeds of about $265 million, of which $245 million came from the private placement and only $20 million from NavSight’s trust account, a sign that most of the SPAC’s own shareholders redeemed. The company’s own third-quarter 2021 report gave net proceeds of $237 million. Wikipedia’s history of the company cites a valuation of $1.6 billion at the merger.

At listing, the business was small. Third-quarter 2021 revenue was $9.6 million and annual recurring revenue was $45.2 million from 225 subscription customers. Soon afterward the company agreed to buy exactEarth, a Canadian ship-tracking data firm with $18.2 million of trailing revenue, to strengthen its maritime offering. The market did not reward the growth story. By April 2022 the market capitalization had fallen to $231 million, according to the same Wikipedia account, below the cash the company held after the SPAC. Like many 2021 space listings, Spire had public-company costs and debt on a startup-sized revenue base.

Why did it sell the maritime business to Kpler?

Because the debt had become the main problem. On 13 November 2024 Spire announced the sale of its ship-tracking business to Kpler, a Belgium-based data and analytics company, for about $241 million. The deal closed on 25 April 2025 and the proceeds retired all outstanding debt.

Via Satellite reported the structure as a $233.5 million purchase price before adjustments plus a $7.5 million services agreement over twelve months. Kpler received the maritime tracking service, its customer contracts and staff, and the equity of exactEarth. Spire kept its satellites, ground network and every other product line, and it continues to supply data under the services agreement.

The closing was not smooth. It had been expected in the first quarter of 2025, and Spire filed a legal complaint against Kpler earlier that year for failing to close on schedule. The company had withheld 2025 guidance while the sale was pending. A leadership change accompanied the strategy change: in December 2024 co-founder Theresa Condor, previously chief operating officer, was named chief executive, and Peter Platzer moved to executive chairman after twelve years in charge. Two former Airbus executives joined as chief operating officer and chief transformation officer, and the chief financial officer stepped down.

For a CFO, the trade is instructive. Maritime was the most mature subscription line, and reported revenue fell from $110.5 million in 2024 to $71.6 million in the year of the sale. In return the company removed interest costs and refinancing risk and recorded a $154.3 million gain. Whether that was a good exchange depends on how fast the remaining lines grow.

What do the 2025 and 2026 financials show?

A smaller company that is growing again but still losing money. Revenue fell from $110.5 million in 2024 to $71.6 million in 2025 because of the sale. Second-quarter 2026 revenue was $18.0 million, down 6% year on year in total but up 16% excluding maritime.

The second-quarter 2026 net loss was $20.0 million and adjusted EBITDA was a loss of $8.6 million, an improvement of 16% on a year earlier. Revenue rose 14% from the first quarter. One number went the wrong way: gross margin under US accounting rules was 34%, down 16 percentage points, which the company attributed mainly to the cancellation for convenience of the WildFireSat contract during the quarter.

Cash, cash equivalents and marketable securities were $91.7 million at 30 June 2026, compared with $81.8 million at the end of 2025, and the company has no debt. Because operations were still consuming cash in the first half, an increase in the balance implies money came in from outside the business; the sources we reviewed did not spell out the source, so we flag it as unverified. Management said cash used in operations should keep improving through the second half.

Full-year 2026 guidance was reaffirmed in August: revenue of $75 million to $85 million, including about $3.4 million of residual maritime revenue, and an adjusted EBITDA loss of $20.7 million to $26.0 million. On our arithmetic from the reported figures, 2025 revenue excluding maritime was about $50.6 million, so the guidance implies the remaining business grows by between two fifths and three fifths in one year. That is a demanding target for the second half.

Why is Spire turning toward defense customers?

Because that is where budgets for radio-frequency intelligence and resilient space data are growing. Chief executive Theresa Condor has described space as critical infrastructure for national security, and recent partnerships are with European defense manufacturers.

In the second quarter of 2026 the company announced partnerships with Schaeffler, the German industrial group, to build a European space hardware and mission business, and with Diehl Defence to combine air-defense expertise with Spire’s constellation operations for German and European programmes. In the United States it holds a position on the Missile Defense Agency’s SHIELD contract vehicle, which has a shared ceiling of $151 billion across many suppliers. As with any such vehicle, a position allows the company to compete for task orders and is not revenue in itself. The same vehicle appears in our Firefly Aerospace company story.

Technology is being adapted to match. Spire deployed 29 satellites in 2026 through July, including ten that month. It also reported its first cross-plane optical inter-satellite link: two satellites held a laser connection for more than five minutes across roughly 5,000 kilometres. Laser links let satellites pass data to each other and down to the ground faster, with less reliance on ground stations, which matters to military users who want data in minutes. The risk in the pivot is concentration. Government programmes can be cancelled for convenience, as WildFireSat showed.

How does Spire compare with other space businesses?

Spire is small and lightly capitalized next to connectivity operators. Its entire 2026 revenue guidance is less than a single quarter of capital spending at some constellation builders, and that is by design.

Consider the contrast with our AST SpaceMobile company story, where capital expenditure was about $610 million in one quarter of 2026, or with the Eutelsat OneWeb story, where the operator plans about 4 billion euros of investment over a few years. Spire’s satellites cost a fraction of those and are replaced every few years. The trade-off is that data from small radio receivers is easier for competitors and governments to replicate than a global broadband network.

For founders, the more relevant comparison may be strategic. Spire shows that a listed space company can shrink deliberately, selling a mature unit to a buyer that values it more, and survive. It also shows the cost: public markets had valued the company at $1.6 billion in 2021, and the sale of its most mature product line fetched $241 million.

What should operators and investors watch next?

Watch second-half 2026 revenue against guidance, gross margin recovery after the WildFireSat cancellation, the cash balance, and whether the European defense partnerships turn into funded contracts.

The sequence of quarterly revenue gives a quick test. The company reported $18.0 million in the second quarter after a first quarter that it had guided at $14.5 million to $15.5 million. Reaching even the low end of $75 million for the year requires the third and fourth quarters to average more than $20 million each. Contract announcements with dollar values attached, especially for radio-frequency geolocation and satellite services, would be the evidence that the pipeline is real.

Buyers of space data should take a practical message from the Kpler transaction: products can change owners. If your operations depend on a satellite data feed, check contract assignment clauses and continuity terms. For more profiles and current company coverage, see the Kurums space startup news archive.

Frequently Asked Questions

Sources

• Spire Global, second quarter 2026 results (SEC 8-K exhibit)
• Spire Global, fourth quarter and full year 2025 results
• Via Satellite, Spire pays off its debt with maritime business sale
• Via Satellite, Spire Global names Theresa Condor as CEO
• Luxembourg Space Agency, Spire completes merger with NavSight Holdings
• Spire Global, third quarter 2021 results (SEC exhibit)
• Wikipedia, Spire Global (founding and funding history)