What CALIMA does

CALIMA Safety GmbH is a Berlin-based B2B SaaS company founded in April 2021 by Tim Hautkappe, Katharina Hochmuth, and Michael Zerbin — founders who previously built the KommGutHeim personal safety app starting in 2014. The company provides a smartphone-based digital emergency signaling system (Personen-Notsignal-Anlage, or PNA) that helps German employers comply with DGUV Regulation 1, which requires an effective rescue chain within 15 minutes for employees working alone. Its customer base spans production, energy, utilities, logistics, delivery, healthcare, and care services, with named enterprise logos including EWE Netz (approximately 500 protected workers), Carlsberg, Caterpillar, DB Schenker, Horiba, Viessmann, Vileda, iff, DRK, and Getir. By 2024, CALIMA reported 700+ company customers, 7,000+ protected lone workers, operations in 5 countries, and 18,000+ processed alarms.

The core product consists of the CALIMA mobile app (iOS 13+ and Android 7.1.1+) paired with the CALIMA web-based management dashboard. The app uses smartphone motion sensors (accelerometer, gyroscope) for automatic fall and immobility detection, GPS and WiFi for outdoor location determination, and optional Bluetooth beacons for indoor accuracy. Alarms can be triggered manually or automatically and are routed to designated emergency contacts via phone call, SMS, and email, with a live app link transmitting location data. The system was developed in reference to DGUV Rule 112-139 and DIN VDE V 0825-1, though it is not formally certified to these standards, and is GDPR/DSGVO compliant with all data stored in EU infrastructure on OVH and Hetzner.

CALIMA operates a per-employee monthly subscription model with no installation or setup costs, supported by a hybrid go-to-market combining product-led growth (free 10-day trial, app store self-download, web dashboard self-setup) and sales-led engagement (HubSpot-booked demos, consultation appointments, outbound SDR activity). Marketing is distributed across content marketing, paid search on Google and Microsoft, LinkedIn advertising, email via HubSpot, PR coverage, and physical events including A+A 2025 in Düsseldorf. The company is founder-owned with no disclosed institutional investors beyond a single April 2021 funding round of approximately $390,470, and operates a remote-first team of approximately 15 employees.

Name

CALIMA

Legal name

CALIMA Safety GmbH

Website

https://calima.io

Company type

Private

Founded year

2021

Operating status

Operating

Headcount range

1–10 employees

Short description

CALIMA Safety GmbH is a Berlin-based B2B SaaS company providing a smartphone-based digital emergency signaling system (PNA) for German employers with lone workers, helping them meet DGUV occupational safety requirements via a per-employee monthly subscription across production, energy, logistics, delivery, and care industries.

Ownership category

akta.pro rank

Product category

Lone Worker Safety Software

NAICS

Security Systems Services (except Locksmiths) (561621), Security Systems Services (56162)

SIC

Services-Detective, Guard & Armored Car Services (7381)

akta.pro primary industry

Fall Detection & Automatic Alert Monitoring Services (HSAHAHAC)

akta.pro secondary industries

Wearable Medical Alert Devices (Pendants, Watches, Bands) (HSAHAHAI), Medical Alert / PERS Monitoring (Emergency Response) (BPAKAFAD), Caregiver Monitoring, Check-In & Family Notification Platforms (HSAHAHAE), Two-Way Voice Emergency Communication Devices & Services (HSAHAHAF)

Keywords

• Lone worker protection
• Emergency signaling software
• PNA compliance solutions
• Workplace safety technology
• Occupational health platform

Headquarters

HQ city

Berlin

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Software

Cost components

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

Revenue model

1. Per-employee monthly license fees: Monthly subscription fees billed per protected lone worker employee. No installation or setup costs. CALIMA can be tested free for 10 days without obligation.
2. Enterprise customer deployments: Dedicated hosting setups for enterprise customers requiring custom configurations

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels9 records

Core offering

CALIMA develops and distributes a smartphone-based digital emergency system for companies to protect lone workers (Alleinarbeiterschutz) in compliance with German DGUV regulations. The offering consists of an iOS/Android app that turns employees' smartphones into personal emergency signaling devices (PNA), paired with a web-based management dashboard (CALIMA Dashboard/Management Cloud) for administering protected employees, emergency contacts, and alarm chains. Optional Bluetooth beacons enhance indoor positioning accuracy. Customers subscribe on a per-employee monthly basis with no installation or setup costs.

Product overview

CALIMA offers a unified digital emergency system for lone workers (Alleinarbeiterschutz), consisting of a smartphone app (iOS/Android) that transforms employees' phones into personal emergency signaling devices (PNA/PED), paired with a web-based management dashboard (CALIMA Dashboard/Management Cloud). The core product enables manual and automatic emergency triggering, location tracking, and alert notification to designated emergency contacts. Optional Bluetooth beacons can enhance indoor positioning accuracy. The system helps companies comply with DGUV regulations and occupational safety requirements for lone workers.

Differentiator

Problem solved

Functional benefit

Products and services

• CALIMA App (Smartphone PNA) Smartphone-based emergency signaling application (Personen-Notsignal-Anlage / PNA) for iOS 13+ and Android 7.1.1+ devices. Provides lone workers with both manual and automatic alarm triggering capabilities, automatic fall and immobility detection via motion sensors, check-in/time alarm functionality, and live GPS/WiFi location transmission to emergency contacts. Used by companies to comply with DGUV Regulation 1 requirements for lone worker protection.
• CALIMA Dashboard (Management Cloud) Web-based administrative dashboard accessed via standard browsers for managing lone workers, emergency contacts, alarm chain configurations, reports, and statistics. Enables companies to self-administer their CALIMA deployment and monitor alarm outcomes.

Quantifiable outcome

• 15-minute maximum between alarm triggering and start of relief measures per DGUV requirements
• +3 more outcomes

Named customers10 records

Segments3 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability2 records

Feature6 records

Partnerships

Two partnerships are on record, tiered minor.

• BGHW (Berufsgenossenschaft Handel und Warenlogistik)minorOthers · 10 November 2022BGHW (German Social Accident Insurance for Trade and Logistics) financed the one-month Getir test phase with CALIMA as part of their prevention work to test app-based emergency solutions for couriers of rapid delivery services.
• secjur GmbHminorOtherssecjur GmbH based in Hamburg serves as CALIMA's Data Protection Officer (Datenschutzbeauftragter) as required by GDPR.

Scale indicators8 records

Recent moves9 records

Expansion highlights6 records

Direct peers

• SoloProtect: SoloProtect is one of the closest direct competitors to CALIMA, offering a smartphone-app-based lone-worker safety solution with manual and automatic alarms, location, and a managed monitoring/dispatch service. It targets the same enterprise and mid-market customer base in Europe with comparable per-employee subscription pricing.
• Blackline Safety: Blackline Safety is a publicly listed lone-worker and gas-detection vendor offering both dedicated wearables (G7c, G7x) and a smartphone-based app, paired with 24/7 monitoring. It competes with CALIMA in the same European enterprise accounts, particularly in energy, utilities, and industrial segments, and is a key benchmark on pricing and certification.
• Vismo: Vismo provides a smartphone-based lone-worker and traveler safety app with panic alerting, check-in, and location tracking, sold on per-user enterprise subscriptions. It overlaps with CALIMA on the mobile-app-only, B2B-subscription business model and competes for similar corporate security and travel-risk customers.
• StaySafe (by StaySafe App): StaySafe provides a lone-worker smartphone app with SOS, man-down fall detection, missed-check-in, and live location, sold on a per-user subscription to enterprise customers. Like CALIMA, it competes on smartphone-native simplicity versus dedicated hardware PNA devices and targets similar regulated lone-worker use cases.
• Twig Com (Spartan): Twig Com (part of the Spartan/Stanley group) manufactures dedicated lone-worker PNA devices with SOS buttons, fall detection, and connectivity, sold through European safety channels. It is a direct competitor for the higher-end certified-hardware segment that CALIMA's smartphone-based offering cannot address.

Emerging players

• Argality / Doro Ally: Doro's Ally / Argality offers a smartphone and dedicated-device lone-worker safety solution focused on the care and social-services market in Europe. Comparable to CALIMA in regulatory positioning (DGUV / DIN-aligned) and target customer verticals, especially in healthcare and care-services lone-worker protection.
• SOS Oxygène / Loner Mobile (Bridgestone): Loner Mobile / Bridgestone offers a smartphone-based lone-worker safety solution with fall detection, SOS, and dispatch, sold to enterprise customers in North America and selectively in Europe. It is an emerging competitor to CALIMA in the smartphone-app-only category, particularly for customers seeking cross-Atlantic coverage.

Broad incumbents

• Stanley Security / Securitas Technology (formerly Niscayah): Stanley Security (now Securitas Technology) provides enterprise security systems and lone-worker offerings across Europe, often integrated with intrusion/access control. As a broad incumbent it competes with CALIMA in enterprise accounts where buyers prefer a one-stop safety and security integrator.
• Securitas / Securitas Healthcare / Alert & Connect: Securitas operates a broad portfolio of guarding, electronic security, and connected workforce safety services in Europe, including lone-worker solutions bundled with monitoring centers. As a global incumbent, it competes with CALIMA for enterprise safety RFPs but does not specialize in smartphone-only PNAs.

Regional players

• A1 Digital (Austrian lone-worker offering): A1 Digital, the digital services arm of Austrian telco A1, markets a lone-worker and IoT-based safety solution primarily in Austria and parts of CEE. Comparable to CALIMA in smartphone/IoT positioning and DACH customer base, and a credible regional competitor in adjacent markets.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/calimasafety

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds1 record

Investors

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

M&A

Investments

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

Frequently asked questions about CALIMA