Frankenburg Mark 1

A guided missile the size of a baguette — the Frankenburg Mark 1 is Estonia's bid to solve the drone war's economics with a rocket instead of a drone. Where Ukraine's Sting and Octopus fly quadcopters into Shaheds, Frankenburg's answer is a ~60-centimeter, ~$50,000 solid-fuel interceptor closing at over 1,000 km/h with an AI fire-and-forget seeker and a proximity-fuzed warhead. Built by a startup barely two years old — led by Estonia's former defense-ministry chief — it is the missile-class member of Europe's interceptor-startup wave: cheaper than any legacy SAM, faster than any interceptor drone, and, so far, tested on ranges rather than proven in combat.

Overview

The Frankenburg Mark 1 is a miniature guided interceptor missile from Frankenburg Technologies of Tallinn, Estonia — a counter-drone weapon that occupies a different physics from the FPV interceptors that dominate this stretch of the lexicon. Where the Sting, Octopus and General Cherry's drones are piloted or autonomous quadcopters that fly into their targets, the Mark 1 is a solid-fuel rocket — about 60–65 cm long, reportedly under 2 kg, closing at over 1,000 km/h with an AI-driven, fire-and-forget electro-optical seeker and a proximity-fuzed fragmentation warhead. Its design goal is the interceptor economy's central problem stated as a missile: make each kill dramatically cheaper than a legacy surface-to-air round. At a claimed ~$50,000 — built entirely from commercial components, with glass rather than metal fragmentation to cut cost — it is pitched at roughly a tenth the price of a Stinger-class shot, inserting a cheap missile tier between guns and the exquisite SAMs. Led by CEO Kusti Salm (former permanent secretary of Estonia's defense ministry) with an ex-Diehl Defence engineering chief, and funded by a €30 million Series A (with a €100 million Series B in the works), Frankenburg has moved with startup speed — a first hard-kill intercept in December 2025, an Airbus air-launched demo in March 2026, a Riga factory in June — into the front rank of Europe's affordable-interceptor push. The honest caveats: every performance and cost figure is company-originated, its production numbers are targets not output, and — critically — the Mark 1 has no confirmed combat use, with its Ukraine live-fire repeatedly slipping.

Development

Frankenburg Technologies was founded around 2023–2024 (sources conflict) by serial deep-tech entrepreneur Taavi Madiberk (of Skeleton Technologies), with Kusti Salm — Estonia's defense-ministry permanent secretary from 2021 to 2024 — joining as CEO in September 2024 and former Diehl Defence executive Andreas Bappert leading engineering. It first agreed with Ukraine's Defense Ministry in December 2024 to test the Mark 1 in early 2025 (a plan that slipped), then went public through 2025: shown at DSEI London that September, with Salm disclosing 53 live-fire tests at ~56% accuracy (target 90%), per Army Technology. The milestones then came in a startup rush. In December 2025 it claimed its first full kill-chain hard-kill intercept of a fast-moving target at the Ādaži NATO base in Latvia — a "SpaceX moment," in the company's telling. In January 2026 it released footage of a Shahed-type drone intercept and signed a Babcock MoU for a maritime launcher; on 24 February 2026 it closed a €30 million Series A (led by Plural, total funding ~€40 million); on 30 March 2026 a Mark 1 was fired from Airbus's uncrewed "Bird of Prey" interceptor in the first airborne demo, alongside a Polish PGZ framework for up to 10,000 missiles a year, per Airbus. By June 2026 it had opened a Riga assembly factory (1,500 missiles planned for 2026, ramping toward 100/day), added a Milrem UGV partnership, and was reported seeking a ~€100 million Series B that could push it past unicorn status and fund an expansion toward ballistic-missile defense, per Resilience Media. Notably, the Ukraine combat trial kept receding — early 2025, then Q2 2026, then (at Eurosatory in mid-June 2026) Salm saying testing would begin "next year."

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