Hidden Level Airspace Monitoring Data-as-a-Service

Hidden Level is a US company founded in September 2018 to build RF sensing technology that turns radio activity into airspace intelligence. Its first Airspace Monitoring System installation went live in Arlington, Texas in 2021, and it has worked with the FAA, NASA and the US Air Force.

The Data-as-a-Service offering delivers real-time low-altitude airspace data from a sensor network that Hidden Level owns, operates and maintains, so customers need no on-site hardware. Software-defined sensors analyse physical signal characteristics across a wide bandwidth without decoding private content, tracking crewed and uncrewed aircraft and locating operators in 3D. Data reaches users through a web interface, iOS and Android apps and an open API secured with TLS 1.3 and FIPS 140-2 cryptography. Users include police departments, airports, stadium operators and critical infrastructure owners.

• Owned sensor network: Hidden Level deploys and maintains sensors in urban and rural areas.
• Wideband RF sensing: continuous coverage beyond standard ISM bands, unaffected by link encryption.
• Operator location: 3D positioning of drone pilots alongside aircraft tracks.
• Common operating picture: shared view for multiple agencies and stakeholders.
• Delivery channels: web interface, iOS and Android apps and an open API with per-user tokens.
• Security controls: AWS hosting, MFA, IP restrictions, TLS 1.3 and FIPS 140-2 cryptography.

• Smart city operation centres in Vietnam subscribing to drone and pilot data around stadiums and festival areas.
• Airports and industrial park operators monitoring drone activity near restricted zones without building their own network.
• Drone delivery operators using shared low-altitude data to plan safe BVLOS corridors.

• Subscription access to airspace data without buying, installing or maintaining sensors.
• Tracks RF-emitting and RF-silent targets, including dark drones, and locates operators in 3D.
• Historical data supports pattern analysis and incident investigation.
• Open API and GIS integration let security teams use the data in existing tools.

Cities and venue operators increasingly want airspace awareness as a service rather than owning sensor hardware, mirroring the shift to cloud security. Growth of drone deliveries and BVLOS operations also requires shared low-altitude data, a need that Southeast Asian regulators and smart city programmes are starting to address.

Founded in September 2018; corporate HQ on Geddes Street (established 2021) and an office in Washington, D.C. Raised a USD 17.6 million Series A in 2021 and closed a Series C in February 2025. Awards include FAA Section 383, NASA/STC and USAF AFWERX SBIR programmes.