In April 2013, Mitsunobu "Nobu" Okada sat through a conference in Germany where space debris dominated the conversation. Expert after expert presented the problem. Nobody had a real plan to fix it. Ten days later, he founded Astroscale. That origin story captures the company's character: impatience with talk, appetite for action. More than a decade on, Astroscale has become the world's leading dedicated on-orbit servicing company. It has flown demonstration missions, secured over $400 million in funding, gone public on the Tokyo Stock Exchange, and achieved what no commercial company had done before: approaching an actual piece of orbital debris at close range. The debris problem it set out to solve has only grown more urgent — and Astroscale is now in a position to profit from fixing it. AI-generated image Low Earth orbit is increasingly congested with defunct satellites, rocket upper stages, and debris fragments. Credit: AI illustration The Problem: A Junkyard in the Sky Earth orbit has a garbage problem. The U.S. Space Surveillance Network currently tracks approximately 35,000 objects in orbit larger than 10 centimeters — a number that has grown as launch rates hit record highs. Estimates for fragments between 1 and 10 centimeters, too small to track but large enough to destroy a satellite, run into the hundreds of thousands. Fragments under a centimeter may number in the millions. Every piece moves at roughly 17,500 miles per hour in low Earth orbit. A marble-sized fragment carries the kinetic energy of a hand grenade. The 2009 collision between an Iridium satellite and a defunct Russian Cosmos satellite generated over 2,000 trackable fragments. The 2007 Chinese anti-satellite test created more than 3,000. Both debris clouds are still up there. Scientists call the chain-reaction scenario the Kessler Syndrome — if debris density grows unchecked, certain orbital altitudes could become unusable for generations. The Scale of the Problem • ~35,000 tracked objects larger than 10 cm in orbit today • Hundreds of thousands of fragments between 1–10 cm (untrackable, lethal) • 17,500 mph average orbital velocity in LEO • 12,000+ active satellites currently operating in orbit • ~3,000 large derelict objects identified as highest-priority removal targets The irony is that the same orbital altitudes generating the debris problem are the most commercially valuable. SpaceX's Starlink, Amazon's Kuiper, GPS, weather satellites, Earth observation — most of the infrastructure humanity depends on sits in these bands. The business case for debris removal is not just environmental; it is existential for the satellite industry. Company Overview: From Singapore Startup to Global Operator 2013 Founded $400M+ Total Funding $80M Japanese Govt Grant (2023) 2024 Tokyo IPO Okada founded Astroscale on May 4, 2013, in Singapore, with a team of software engineers who would need to learn spacecraft design as they went. Headquarters later moved to Tokyo, with subsidiary offices in the UK (Harwell), US (Denver), France, and Israel. The company went public on the Tokyo Stock Exchange's Growth Market in June 2024 — one of the few space debris removal companies to achieve a public listing. Funding milestones tell the story of growing institutional confidence. An initial $7.7 million round in 2015 covered early engineering. A $35 million raise in 2016 funded dedicated spacecraft designs. By 2018, total funding exceeded $100 million. A $30 million Series D extension established the Denver office. The 2023 Japanese government commitment of $80 million through 2028 provided substantial non-dilutive capital. The UK government contributed a £4 million grant to establish the National In-orbit Servicing Control Centre at Harwell, Oxfordshire. AI-generated image Astroscale's ELSA-d mission demonstrated magnetic capture and docking technology — the foundation for commercial debris removal services. Credit: AI illustration Missions: From Demonstration to History-Making Mission Launch Objective Status ELSA-d March 2021 Demonstrate magnetic capture of simulated debris in LEO Complete ADRAS-J Feb 2024 RPO inspection of real H-IIA rocket body; approached to 15m Phase 1 Complete LEXI TBD Life extension for GEO satellites via docking and propulsion assist In Development Orpheus TBD UK Dstl mission; in-orbit intelligence and SSA support In Development ELSA-d: Proving the Concept ELSA-d launched aboard a Soyuz rocket on March 22, 2021, carrying two spacecraft: a 175-kilogram Servicer and a 17-kilogram Client fitted with a ferromagnetic docking plate. On August 25, 2021, the team completed the first successful release and re-docking test. Subsequent tests demonstrated capture against a tumbling target — mimicking real debris, which rotates unpredictably. The mission concluded in January 2023. It validated the core technology stack: proximity rendezvous guidance, magnetic capture, and the docking plate standard Astroscale wants the industry to adopt broadly. ADRAS-J: Approaching Real Debris ADRAS-J launched on February 18, 2024, aboard a Rocket Lab Electron rocket from New Zealand. Its target was a specific piece of existing debris: the upper stage of a Japanese H-IIA rocket (object 2009-002B) that had been in orbit since January 2009 — roughly 11 meters long, weighing around 3 tons, orbiting at approximately 570 kilometers altitude and tumbling slowly without control. In November 2024, ADRAS-J closed to approximately 15 meters from the upper stage. No commercial company had ever gotten that close to uncooperative debris through rendezvous and proximity operations. The upper stage has no transponder, no reflectors, no cooperative attitude control — the spacecraft had to find it, track it, and close in using optical navigation and onboard processing alone. Phase I collected detailed data on the upper stage's rotation rate, surface condition, and center of mass. That data will inform Phase II: physical capture and deorbit, which would be an industry first. AI-generated image Astroscale's ADRAS-J mission approached a Japanese H-IIA rocket upper stage — dead in orbit for 15 years — to within 15 meters. Credit: AI illustration Mission Timeline • 2021 (March): ELSA-d launched aboard Soyuz-2 rideshare • 2021 (August): First successful client release and magnetic re-docking • 2024 (February): ADRAS-J launched on Rocket Lab Electron • 2024 (November): Closest commercial approach to debris — 15 meters from H-IIA upper stage • TBD: ADRAS-J Phase II — physical capture and deorbit of the H-IIA body Orpheus: UK Defence Contract In June 2025, the UK Defence Science and Technology Laboratory (Dstl) awarded Astroscale a £5.15 million contract for the Orpheus mission — a successor to the Prometheus-2 and CIRCE satellites lost when the Virgin Orbit LauncherOne rocket failed in January 2023. Orpheus will support in-situ space situational awareness work, with Open Cosmos serving as a subcontractor. The contract reflects growing interest from defence agencies in on-orbit servicing capabilities that extend beyond commercial cleanup into monitoring and intelligence applications. Technology: Docking Plates, Magnetic Capture, and Life Extension Astroscale's technology stack addresses two distinct categories of on-orbit servicing: removing existing debris never designed to be captured, and servicing satellites purpose-built with compatible hardware. The docking plate concept is elegant in its simplicity. A small ferromagnetic interface is attached to a satellite before launch. When the satellite reaches end of life, an Astroscale servicer locates it, approaches, and magnetically captures it for deorbit. In March 2025, Airbus Defence and Space placed the first large-scale commercial order for Astroscale UK's second-generation docking plates — more than 100 units. Airbus builds a significant fraction of the world's commercial satellites. That order is the strongest signal yet that the docking plate standard may become the industry n