Tonner Drones

What Tonner Drones does

Tonner Drones is a French public holding company listed on Euronext Access Paris under ticker ALTD (formerly associated with the Delta Drone brand), headquartered at 27 avenue de l'Opéra, Paris. The company operates a hybrid model that combines a single operating product, Countbot, with a portfolio of minority equity stakes in specialized drone manufacturers and adjacent industrial assets. Countbot is an automated warehouse-inventory drone solution developed in close collaboration with logistics group GEODIS, designed to replace manual inventory counting with automated drone flights that produce WMS-compatible stock data; it is commercialized through three channels — direct purchase (with bundled training, service contract, and maintenance), monthly leasing (including setup and operator training), and on-demand service (Tonner Drones operates the inventory visits on a pay-per-engagement basis). The company also holds minority stakes in Elistair (11.43%, tethered surveillance drones deployed in 70+ countries), Donecle (10.30% retained after a partial exit, automated aircraft inspection drones listed in Airbus and Boeing AMMs), Diodon (8.4%, waterproof microdrones for maritime defense), Roth Mions (18.7%, ultra-high-pressure gas storage), and SpaceX (strategic position taken in January 2026). The business model generates revenue from Countbot sales/leasing/service fees, investment-portfolio appreciation and partial exits, and potentially future royalties or sale of the 'Inhibitor' patent. In 2025 the company completed a financial restructuring that reduced operating expenses by 76% to €778,000 and shifted it to a €1.1M net profit from a €5.6M loss the prior year.

Name

Tonner Drones

Legal name

Tonner Drones

Website

https://tonnerdrones.com

Company type

Public

Founded year

2011

Operating status

Operating

Headcount range

11–50 employees

Short description

Tonner Drones is a French publicly listed holding company (Euronext Access Paris: ALTD) that commercializes the Countbot warehouse-inventory drone solution developed with GEODIS and holds minority stakes in drone manufacturers (Elistair, Donecle, Diodon), gas-storage specialist Roth Mions, and SpaceX.

Ownership category

akta.pro rank

Product category

Commercial Drones / Warehouse Inventory Automation

NAICS

Material Handling Equipment Manufacturing (33392)

SIC

Search, Detection, Navagation, Guidance, Aeronautical Sys (3812)

akta.pro primary industry

Consumer Non-Imaging Drones (Toy/FPV, Racing, Delivery/Utility) (CRACARAH)

Keywords

• Warehouse inventory drones
• Automated drone solutions
• Commercial UAV systems
• Drone logistics technology
• Drone portfolio investment

Headquarters

HQ city

Dardilly

HQ country

France

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Technology or R&D, Personnel, Operations, Marketing or Sales

Revenue model

1. Countbot Sales and Leasing: Direct sale of Countbot inventory drone systems with bundled training, service contracts, and maintenance. Alternative leasing model includes warehouse setup, support, maintenance, and operator training. One-time revenue from system sales; recurring revenue from service contracts.
2. Service-based Revenue: On-demand inventory service where Tonner Drones visits client warehouses and performs inventory counts. Revenue per mission or service engagement. Can cover single or multiple warehouse cells, wall-to-wall or rolling inventory.
3. Investment Portfolio Returns: Strategic investments in drone manufacturers (Elistair 11.43%, Donecle 10.30%, Diodon 8.4%, Roth Mions 18.7%, SpaceX). Revenue from partial exits, dividends, and appreciation in portfolio company valuations.
4. Patent Royalties (Inhibitor): The company is evaluating potential additional revenues through royalties or sale of its 'Inhibitor' patent.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels1 record

Core offering

Tonner Drones develops and sells the Countbot, an automated warehouse inventory drone solution built in collaboration with logistics group GEODIS. The company offers this drone system through direct purchase, leasing, or as a service model to logistics operators seeking to automate stock counting. In parallel, Tonner Drones manages an investment portfolio of minority stakes in specialized drone manufacturers (Elistair, Donecle, Diodon) and pursues patent monetization through its Inhibitor technology.

Product overview

Tonner Drones operates as an active investor in transformative technologies, primarily developing the Countbot solution for the logistics sector while holding strategic stakes in French drone manufacturers. The core offering is the Countbot inventory drone solution, available through purchase, leasing, or as-a-service models, which the company develops in collaboration with GEODIS. The company also holds participations in Diodon (waterproof drones), Elistair (tethered surveillance drones), and Donecle (aircraft inspection drones), managing these investments for value appreciation. Additionally, Tonner Drones pursues patent licensing opportunities through its 'Inhibitor' technology and may generate revenue through royalties or patent sales.

Differentiator

Problem solved

Functional benefit

Brands

• Countbot: Warehouse inventory drone solution developed in collaboration with GEODIS logistics group, improving stock reliability by automating the inventory stage. Offered for buying, leasing, or as a service.

Products and services

• Countbot

Quantifiable outcome

• Operating expenses reduced by 76% to €778,000 in 2025
• +3 more outcomes

Named customers12 records

Segments3 records

Ideal customer profiles1 record

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature2 records

Partnerships

Six partnerships are on record, tiered core, portfolio investment and product partnership.

• GEODIScoreStrategic or Co-development PartnerStrategic collaboration with GEODIS logistics group for development of the Countbot automated warehouse inventory drone solution. GEODIS contributed operational requirements and use case expertise to the product development process.
• Elistairportfolio investmentStrategic or Co-development PartnerTonner Drones holds 11.43% stake in Elistair, a leader in automated tethered drones for surveillance and tactical communications. D.M. van den Ouden represents Tonner Drones on Elistair's board. Shares valued at €534,112.
• Donecleportfolio investmentStrategic or Co-development PartnerTonner Drones holds 10.30% stake in Donecle, the leader in automated drones for aircraft inspections with Iris drone solutions. D.M. van den Ouden represents Tonner Drones on Donecle's board. Shares valued under €20,000.
• Diodonportfolio investmentStrategic or Co-development PartnerTonner Drones holds 8.4% stake in Diodon, which designs waterproof mini aerial drones for defense, security, rescue and offshore operations. DM van den Ouden represents Tonner Drones on Diodon's board of directors.
• Roth Mions (ROTH2)portfolio investmentStrategic or Co-development PartnerTonner Drones holds 18.7% stake in Roth Mions, a French specialist in ultra-high-pressure gas storage solutions and the only French manufacturer of seamless steel tanks up to 1,000 bar. Tonner Drones orchestrated Roth Mions' Euronext Access listing and participated in pre-listing fundraising.
• 8Treeproduct partnershipTechnology or IntegrationDonecle's Iris dentCHECK drone is developed in partnership with 8Tree, focused on precise dent measurements for faster and accurate structural assessments at heights.

Scale indicators11 records

Recent moves7 records

Expansion highlights5 records

Market position

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• Xx.com/deltadrone
• LinkedInlinkedin.com/company/delta-drone

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Subsidiaries4 records

Funding overview

Funding rounds5 records

Investors2 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A5 records

Investments2 records

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Tonner Drones