About Us

ALTER is a Spanish company, member of TÜV NORD Group, leading the Aerospace Business Unit. We conduct testing processes, qualification, approval or certification of electrical, electronic and electromechanical equipment for high reliability sectors such as Space, Aeronautics, Drones-RPAS, Defense, Security, Fire, Energy, Telecommunications, Railways, Transport, Traffic, …., among others. Including CE marking.

ALTER became the first European Notified Body for Regulation (EU) 2019/945. As a Notified Body in the 2019/945 UAS Regulation and 2014/53/EU RED Directive, we could help you get the CE Marking and Class Label C0-C4 (open category).

We are currently working to expand our accreditation over the next months as Notified Body to classes C5 and C6 (specific category). 

ALTER is European Notified Body (NB 2031) for:

  • Regulation (EU) 2019/945 for UAS-Drones.
  • EMC Directive: 2014/30/EU Electromagnetic compatibility.
  • RED Directive: 2014/53/UE RED (Radio equipment).
  • Regulation (EU) No 305/2011. Fire Detectors.
Other accreditations:
  • Testing Laboratory accredited by ENAC (Spanish Accreditation Body), according to the standard EN 17025:2005.

  • Certification Body accredited by ENAC (Spanish Accreditation Authority), according to the standard EN 17065:2012, for security and safety electronics products.(intrusion, access control, videosurveillance (VVS)…).

Our representatives projects

Alter Technology Drones Experts in ALTER have extensive expertise in the sector; participation in national and international projects and different Standardization and Normalization Workgroups provide the Team a strong knowledge in the fields.

AIRWATCH – Marine Search and Rescue System based on a Remotely Piloted Aircraft System (RPAS)  

AIRWATCH is an R&D project, funded by the FEDER INNTERCONECTA 2016 program from Spanish CDTI (Centro para el Desarrollo Tecnológico Industrial), and it was performed by a consortium of companies and research centers which aimed to develop a Marine Search and Rescue system based on a RPAS.  


DREAM – Drones to increase efficiency safety and environmental protection applied to infrastructures maintenance 

Development of drone technologies to increase efficiency, security & safety, and environmental protection related to infrastructure maintenance. 3 different systems will be developed for several inspections activities: PowerlinesCivil infrastructures, and Petrochemical facilities.


TRACE – Smart drone EGNOS-based beacon for U-SPACE

This project is led by ALTER and funded by the GSA.The aim of this project is the development of a smart drone beacon for efficient remote identification, considering the future U-space and its related services.  


BLACK SQUARE’s Hercules Quad drone

ALTER completes pilot testing of BLACK SQUARE’s Hercules Quad drone for pre-qualification and subsequent certification as a C6 class drone. The tests that have been carried out in our laboratories conducted at the Aerodrome.


Alter Drones’ experts also participates in different Standardization Committees and Workgroups of this sector such as:  

  • ASD-STAN D5 WG8: “Autonomous Flying”. This WG in charge of the development of the Harmonised Standards for the Drone Market inside the European Union. 
  • CTN 28/SC 2 UAS: “Unmanned Aeronautical Systems”. Normalization Technical Committee – AENOR (Spain).  
  • ISO/TC 20/SC 16: Unmanned aircraft systems –  
  • WG 1: General 
  • WG 2: Product systems. International Organization for Standardization. UAS Technical committee.  
  • WG 3: Operations and procedures 
  • WG 5: Testing sites. 
  • AESA – Advisory Commission. Safety Aviation Spanish Agency – RPAS Workgroup.  
  • TEDAE – RPAS Workgroup. Spanish Association of Defence, Aeronautics and Space Technologies. 
  • EDA – RPAS ATI Industry Exchange Platform. European Defence Agency.  

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