Watchtower Labs emerges from stealth with a $35M seed round to plan military logistics with AI

TLDR

• Watchtower Labs left stealth with a $35M seed led by Shield Capital and Conviction, with Founders Fund participating.¹
• It builds AI and simulation software for military logistics planning; the Defense Innovation Unit selected it in January 2026.¹
• Shield Capital's own post says $30M; the company release and two outlets say $35M.²¹³⁴

Watchtower Labs emerged from stealth on 21 October 2026 with $35 million in seed financing led by Shield Capital and Conviction, with participation from Founders Fund, according to the company's release.¹ Shield Capital's own announcement, written by founder Raj Shah, gives the seed figure as $30 million, so the sources disagree.² Defense Daily reports $35 million, as does Upstarts.³⁴ Upstarts also lists In-Q-Tel among the participants, which the company release does not mention.⁴ Shield incubated the company inside the firm and Shah chairs it, so Shield is an existing backer from the start.¹² The sources do not say whether Conviction and Founders Fund are new or existing investors.

The company builds AI-native applications that help military planners anticipate what happens next in an operation, weigh options and decide while there is still time to act.¹ It starts with logistics planning, where transport, spare parts, fuel, munitions, routes and time can decide whether a mission is executable. The software models hundreds of possible futures against real-world constraints, generates executable options and shows the assumptions and tradeoffs behind each, and planners can ask questions in plain language.¹ Upstarts adds that the software runs locally, uses large language models to find and process the relevant data, and runs simulations by the thousands, returning results through a dashboard or a shareable artefact such as a presentation.⁴ CEO Akhil Iyer told Upstarts, "You cannot LLM your way to supply chain optimization", and Upstarts describes the product as sitting alongside tools such as Anduril and Palantir rather than competing with them directly.⁴

On traction, the release says Watchtower partnered with the Naval Postgraduate School in 2025 and that the Defense Innovation Unit selected it in January 2026 under the Joint Sustainment Decision Tool programme.¹ Defense Daily reports the Pentagon contract under that programme as aimed at moving logistics decisions from reactive to proactive.³ Upstarts reports a team of nearly 30 people, several early prototype-style contracts with major operational commands and other pilot customers, all unnamed and described by the startup itself, so none has been independently checked.⁴ It also traces the idea to a meeting early last year with Admiral Samuel Paparo, who flagged logistics planning as a need; Shield's investors could not find a startup to back, so they built one.⁴ Iyer is a former Marine special operations officer and Shield Capital investor. His co-founders, Souren Aghajanyan and John Morman, are Microsoft engineering veterans.¹ The financing will fund hiring, more applications on the core platform and wider deployment beyond sustainment into broader operational planning.¹

The second source adds a different angle (the origin story, the customer picture and the In-Q-Tel mention) but, like the release, relies on the company's own account of customers and contracts. No contract values or revenue are disclosed in the material found.¹⁴

On the leads: Shield Capital describes itself as an early-stage venture firm investing in AI, autonomy, cybersecurity and space for national security.¹ It has published investment announcements for UFORCE, which it says builds autonomous systems used in the Russia-Ukraine war,⁵ Autonomous Cyber, which is developing FUZZ-E, an AI-native platform for offensive cyber operations,⁶ and Star Catcher, which is building power infrastructure in space.⁷ Conviction's release names Baseten, Cognition, Harvey, Instinct, OpenEvidence, Sierra and Thinking Machines as early partners; none is described as a defence company, and the sources reviewed name no defence holdings for Conviction or Founders Fund.¹

Why it matters: a defence-focused fund incubated this company after a commander named logistics as the gap, which points to planning software, not weapons, as where early money is going, though customer and contract claims are the company's own.