Watchtower raises $35m for military logistics software

Seattle-based Watchtower Labs has emerged from stealth with $35 million in seed financing to develop military planning software that combines artificial intelligence, simulation and optimisation to compare logistics options under changing operational constraints.

The financing was announced on 21 October 2026 and was led by Shield Capital and Conviction, with Founders Fund participating. Watchtower intends to use the capital to expand its workforce, develop additional applications and continue evaluating its technology with military organisations.

The company’s initial focus is sustainment and logistics, where the availability of transport, fuel, spare parts and other supplies influences whether a proposed activity can be supported. Its software is intended to help planners assess alternative arrangements when resources are limited and circumstances change.

Military logistics planning involves several connected decisions. Supplies must be available at appropriate locations, transport assets must have sufficient capacity and routes must remain usable within the periods required by the organisations receiving support.

The availability of one resource can affect the use of several others. If an aircraft becomes unavailable, cargo may need to be allocated to different vehicles or routes. That change can increase journey times or place additional pressure on equipment already assigned to other requirements.

Watchtower is developing a system that represents such relationships through computational models. The company describes an environment in which planners can examine hundreds of potential future scenarios and compare courses of action against defined operational constraints.

Simulation and optimisation perform different functions within that approach. A simulation estimates how a modelled system may behave under specified conditions, while optimisation techniques search for solutions that satisfy constraints and perform favourably against selected objectives.

The results depend on what the software is asked to prioritise. Minimising transport time can produce a different plan from minimising fuel consumption, preserving reserve capacity or prioritising the movement of particularly important supplies.

Constraints can also make an otherwise attractive plan impossible to execute. A route may be short but unsuitable for a particular vehicle, or sufficient cargo capacity may exist on paper while the required equipment is unavailable during the relevant period.

By representing those restrictions, planning software can identify options that satisfy the modelled requirements and expose the consequences of choosing between them. The value of the resulting analysis depends on the accuracy of the inputs and whether important practical limitations have been represented.

Watchtower says its system can generate and assess alternative courses of action across multiple possible futures. This allows planners to examine how an arrangement might respond to changes in resource availability, transport conditions or other factors represented in the model.

Such modelling does not establish that the software can predict actual future events. A scenario is an analytical construct based on assumptions, and a result that is internally consistent may still be unreliable if the underlying information is incomplete or incorrect.

The system’s usefulness consequently depends on data from the organisations employing it. Information about equipment availability, stock levels, expected demand and operating conditions must be sufficiently current and consistent for the model to represent the decisions under consideration.

Integrating those records can be difficult where different organisations use separate systems or incompatible definitions. Two data sources may appear to describe the same resource while recording different quantities, locations or status information, making validation and reconciliation part of the engineering work.

The company also provides a natural-language interface intended to allow planners to ask questions about available options. Such interfaces can make analytical tools easier to use, but the software must translate a question into an appropriate calculation and present the associated assumptions without obscuring important limitations.

Watchtower says its platform is designed to show the trade-offs behind proposed courses of action and keep decisions under human control. That distinction separates computational assistance from the authority to approve an operational plan.

Human review remains important where modelling errors could affect the availability of supplies or the allocation of scarce resources. A calculated recommendation may need to be examined against information unavailable to the software or against restrictions that were not represented in the original model.

The technology has already entered a US defence development pathway. In January 2026, the Defense Innovation Unit selected Watchtower Labs and Air Space Intelligence for prototype contracts under the Joint Sustainment Decision Tool programme.

The Defense Innovation Unit confirmed the awards publicly in February and updated its programme account in July. The initiative involves defence organisations seeking tools to anticipate logistics requirements and support planning across munitions, fuel, medical supplies and spare parts.

Its objectives include generating possible courses of action, examining risks to sustainment activities and allowing users to test alternative assumptions. Watchtower’s participation therefore provides a defined defence research and prototype relationship, separate from the venture capital financing announced in October.

A prototype contract is not equivalent to an unrestricted production award or deployment across the armed forces. Technical evaluation must establish how well a system performs against customer requirements, how it integrates with existing data and whether its outputs remain reliable under representative conditions.

The Defense Innovation Unit has described the importance of early integration with mission partners so that prototype tools can be assessed against practical logistics requirements. That work provides a route for evaluating the software with defence users, but publicly available information does not establish the number of operational deployments or the outcome of every assessment.

Watchtower also collaborated with the Naval Postgraduate School in 2025, drawing on operations research and defence practitioner experience during development. The company’s founding team combines military operational experience with software engineering backgrounds associated with large distributed computing systems.

The business was incubated within Shield Capital and is led by co-founder and chief executive Akhil Iyer, a former Marine special operations officer. Other co-founders include Souren Aghajanyan and John Morman, who previously held engineering roles at Microsoft.

Those backgrounds help explain the company’s emphasis on combining operational modelling with software infrastructure. However, experience within the founding team does not establish the performance or maturity of the resulting product, which must be evaluated through testing and customer use.

Watchtower intends to extend its software beyond sustainment into other planning applications. Each additional area will require suitable data, models and validation, because assumptions that apply to logistics cannot automatically be transferred to different operational problems.

The $35 million financing provides resources for that development, but the company has not disclosed revenue, customer deployment numbers, independently verified forecasting accuracy or complete software performance benchmarks.

The October announcement is therefore a financing and company-development milestone supported by an earlier defence prototype award. Subsequent testing, integration and procurement decisions will determine whether Watchtower’s planning technology progresses into sustained operational use.