Top 10 Global Tethered Drone Power System Manufacturers

The tethered drone industry has grown rapidly. It has evolved from niche military technology to a global infrastructure tool. Unlike free-flying drones, which are limited by battery life, tethered systems receive continuous power via a cable from a ground station. This enables 24/7 aerial coverage. It is ideal for surveillance, communications relay, emergency response, and environmental monitoring.

According to Fortune Business Insights, the global tethered drone market was valued at approximately $422 million in 2026. It is projected to reach $705 million by 2034, with a compound annual growth rate (CAGR) of 6.6%. Below is a verified profile of the ten most reliable manufacturers worldwide. It is compiled from official websites, market reports, and trade platforms.

1. Elistair

Year Founded: 2014

Location: Lyon, France

Key Products: Safe-T 2, Light-T 4 tethering stations. Orion 2 autonomous UAS (50+ flight hours). Khronos "drone in a box"

Strengths: Pioneer in European tethered drone power solutions, specializing in military and professional civilian applications. Ultralight design, automatic cable winding, and stable high-altitude power transmission. Certified for defense and public safety projects, with deployments in over 70 countries globally.

2. Hoverfly Technologies

Year Founded: 2010

Location: Florida, United States

Key Products: HIVE Sentry (fixed surveillance system), HIVE Spearhead (vehicle-mounted), NEXUS (multi-domain communications repeater)

Key Competitiveness: Developer of the world's first small-sized tethered UAS. Long-standing supplier to the US military for persistent ISR and tactical communications systems. Designed and manufactured in the USA. Raised $20 million in a Series B funding round in October 2025 (led by Leonardo DRS).

3. Rosefinch Technology

Year Founded: 2021

Location: Nanjing, Jiangsu, China

Key Products: Universal tethered power stations (500W to 28kW). Dedicated DJI tethering systems for DJI Mavic 3, Matrice 30, Matrice 350 RTK, Matrice 400, FlyCart 30,

FlyCart 100, and high-power tethering systems for multirotor drones.

 

Strengths: Rosefinch Technology is a leading manufacturer of tethered drone power stations. It offers the widest range in the industry, compatible with drones with MTOW from 3kg to 120kg. Its main advantage lies in the constant voltage air module design. This avoids losses due to battery charging or discharging during tethered flight. This allows for effective autonomy. The company also integrates an automatic cable winding and unwinding system with adaptive tension control. This makes its systems particularly suitable for surveillance, emergency response, and military projects. They are also suitable for industrial drone applications in over 30 countries.

4. Fotokite

Year Founded: 2014

Location: Zurich, Switzerland

Key Products: Fotokite Sigma, Sigma+ (rooftop deployable box, EO/IR); Fotokite Live software

Key Competitiveness: ETH Zurich spin-off. Pioneer of tethered drones for emergency services. Deploys autonomously in 15 seconds, no pilot license or GPS required. Belongs to a category of tethered drones exempt from FAA regulation. Has total funding exceeding $37 million. Serves fire departments in Los Angeles, London, Paris, and Milan.

5. Sky Sapience

Year Founded: 2010

Location: Yokneam, Israel (acquired by COMSovereign, USA, 2021)

Key Products: HoverMast-100, HoverMast-150 (up to 18kg payload), HoverMast-Lite

Key Competitiveness: Fiber optic cable enables cyber-hardened and interference-immune communications. Capable of operating on the move from vehicles or vessels in GPS-denied environments. Originally developed for the Israeli Ministry of Defense. Acquired for $12.7 million to serve the US Department of Homeland Security (DHS) and Department of Defense (DoD) markets.

6. Volarious

Year Founded: 2018

Location: Singapore

Key Products: V-Line series (V-Line Pro, V-Line T), designed specifically for DJI drones.

Competitive Strength: Volarious specializes in portable, professional tethered flight systems that maintain the portability of standard commercial drones. Their systems are known for "plug-and-play" installation. This allows users to switch from battery-powered to tethered flight in seconds. This makes them popular for maritime security and law enforcement.

7. Easy Aerial

Year Founded: 2015

Location: Brooklyn, New York, United States

Key Products: THAS (Tethered Hovering Aerial System); Scout Drone-in-a-Box; vehicle-mounted tethered configurations

Key Competitiveness: Combines the autonomy of a drone in a box with persistent tethered coverage. Weather-resistant; supports ground and vehicle deployment. Deep integration with US and NATO defense infrastructures.

8. LifeLine

Year Founded: 2015

Location: California, United States

Key Products: Tethered drone power systems for public safety and firefighting. Heavy-duty industrial power modules.

Competitive Strengths: US company specializing in tethering solutions for emergency response. Robust design for harsh environments. Compliance with US federal safety standards. Offers customized power solutions for first responders.

9. ValoFly

Location: Germany

Core products: TGS Avior; vehicle-tethered flight system for multicopters.

Core competitiveness: Founded by German fire brigade and emergency management professionals, TGS Avior is a weather-resistant system. It is standardized for rack installation and field-tested in sub-zero temperatures. The company emphasizes rapid network integration. This ensures aerial sensor data reaches decision-makers without delay. They are currently part of a consortium developing a fully integrated tethering system for vehicle-mounted mobile platforms.

10. Blue Vigil

Year of establishment: 2018

Location: Reston, Virginia, USA

Core products: RS1000 wired power system, designed for DJI drone platforms, including the DJI Enterprise series.

Core competitiveness: Blue Vigil focuses on compact and rapidly deployable tethered drone systems for public safety, surveillance, and emergency response applications. Their systems are recognized for lightweight, integration, and stable continuous power. They also offer strong compatibility with commercial drone platforms, especially in North American police and tactical operational scenarios.