**Three-year employee trend (avg FTE):** FY2023 2,217 → FY2024 2,422 (+9.2%) → FY2025 2,634 (+8.7%) → H1 2026 2,895 (+13.6% vs H1 2025's 2,548). Around 1,226 FTEs (c. 47%) were employed in Austria in FY2025 (AR2025), and around 1,300 (c. 45%) in H1 2026 (HY2026).
Frequentis is a Vienna-based, family-controlled specialist in communication, information and control-centre solutions for safety-critical operations. Its heritage and largest franchise is voice communication systems (VCS) for air traffic control, where it describes itself as the world leader; around that core it has built adjacent positions in aeronautical information management, arrival/departure management, remote digital towers, drone (UTM) management, military command-and-control voice, police/fire/ambulance dispatch, railway dispatcher communications and coastguard/port systems. More than 90% of its customers are public authorities, giving it unusually defensive, budget-driven demand, long contract tails and high entry barriers, at the cost of lumpy project execution and modest structural margins (EBIT margin 6–9% across FY2021–FY2025). In FY2025 it produced EUR 580.1m revenue and EUR 46.8m EBIT with a record EUR 794.9m order backlog, and is now pivoting toward software-centric, standards-based platforms (MCX/5G, FRMCS, cloud ATM) while benefiting from rising European defence and US air traffic control modernisation spending.
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### Company's own description (AR2025)
Frequentis describes itself as a provider of applications, solutions and systems for the safety-critical sector, whose mission is "for a safer world." Its solutions are used in customers' command and control centres by air traffic controllers, dispatchers and operators. The company states that it is the global market leader in high-tech systems for air traffic management and that it serves more than 550 customers in some 150 countries through a network of companies and local representatives in more than 50 countries (AR2025, "The Company").
The company frames every control centre as comprising four interacting components: (1) tactical situation tools showing operators the current picture; (2) planning and management tools to support fast, safe decisions; (3) voice and data communication systems to talk to traffic participants, emergency crews or security forces; and (4) safety-critical networks guaranteeing operational continuity. Voice and data communication — where Frequentis claims world leadership — is positioned as the natural entry point from which fully integrated control-centre solutions are sold (AR2025).
Its long-term vision is to be the global number one in solutions for control centres in the safety-critical sector. As a systems integrator integrating its own software (and in part its own hardware) into customers' landscapes, management expects long-run profitability in project business "on the level of established IT systems integrators," and states that the transformation to a software-centric business is under way but will take several years given the customer structure (AR2025 Preface).
### Business model and revenue model
| Revenue category (EUR m) | H1 2025 | H1 2026 | Comment |
|---|---|---|---|
| New products and/or new customer business | 99.4 | 191.5 | Driven by large Americas project (HY2026 Note 4) |
| Installed base business (IBB) | 128.6 | 143.3 | Upgrades, extensions, maintenance on existing systems |
| Other revenues | 8.7 | 8.0 | — |
| Total | 236.8 | 342.9 | — |
Frequentis operates a project-plus-lifecycle model: large, multi-year system deliveries (often tendered by national air navigation service providers, defence ministries, interior ministries, railway infrastructure managers and coastguards) followed by long maintenance, upgrade and extension streams on the installed base. The company discloses revenue by category rather than by product/service/licence:
IBB represented c. 54% of revenue in H1 2025 and c. 42% in H1 2026 (derived), illustrating that a substantial recurring/semi-recurring layer underpins the project business. Most revenue is recognised over time (percentage-of-completion on customer contracts and straight-line on maintenance); point-in-time revenue (short services, spare parts, certain hardware deliveries) jumped to EUR 60.3m in H1 2026 from EUR 15.2m in H1 2025, mainly because of a major Americas project (HY2026 Note 4).
A precise product vs. service vs. subscription vs. licensing split is not publicly disclosed. A secondary source (Under-Followed-Stocks, FY2024 review) cites roughly 20% of revenue from software products; the company itself confirms that its hardware-to-software conversion is ongoing and that new business models such as software-as-a-service and cloud are a focus area (AR2025). Subscription/SaaS revenue is not separately reported.
### Customers and end-markets
**Customer type:** over 90% public authorities or government-related entities (AR2025). Typically one to two ATM customers per country (civil ANSP plus military), which the company says implies relatively high entry barriers (HY2026 Note 3).
**Concentration:** in H1 2026 one customer accounted for more than 10% of group revenue — EUR 110.0m, in the ATM segment (HY2026 Note 3). The customer is not named; given the disclosed scale of FAA programmes (APCS / BNATCS-VoICE modernisation) and the Americas revenue surge, this is very likely the US Federal Aviation Administration, but that attribution is an analyst inference, not a company disclosure. In H1 2025 no customer exceeded 10%.
**End-markets:** civil air traffic control (incl. AIM); military air traffic control and air defence (c. 20% of group revenue in FY2024 per AR2024); police, fire and emergency rescue; railways and local public transport; coastguards and port authorities.
### Value-chain position
Frequentis sits between component/radio/IT-hardware suppliers (it sources radios from partners such as Rohde & Schwarz, servers and electronic components from the IT market) and the end operator. It owns the application software layer (VCS, CAD, AIM, AMAN/DMAN, MCX client/server via Nemergent, UTM), performs systems integration, and provides lifecycle services. Its own value chain centres on product development and production, domain sales, key accounts, and product and project management (AR2025, ESRS 2 SBM-1). Production is mainly assembly/integration of safety-critical systems; inventories of finished assemblies are built up for large programmes (EUR 64.5m inventories at 30 June 2026).
### Independent characterisation
Frequentis is best understood as a niche, mission-critical systems integrator with a dominant ATM voice-communications franchise and a portfolio of bolt-on software assets. Three features define the investment case: (i) quasi-infrastructure demand — control centres must operate regardless of traffic or incident volumes, so investment is sticky through cycles; (ii) structural tailwinds from airspace modernisation (IP-based voice, cloud-native ATM, digital towers), drone integration, the GSM-R-to-FRMCS migration in rail, the TETRA-to-MCX (5G) migration in public safety, and European re-armament; and (iii) margin structure constrained by fixed-price project risk, high personnel intensity (personnel expenses were EUR 292.1m, or c. 50% of FY2025 revenue) and the hardware component of deliveries. The ATM segment generates c. 70% of revenue but historically lower margins than PST, a pattern that reversed in H1 2026 on timing effects.