Nabla Engineering

What Nabla Engineering does

Nabla Engineering is a privately held B2B engineering consultancy founded in 2015 that specializes in the safety and ventilation engineering of underground and above-ground traffic and infrastructure facilities. The firm operates through two legal entities — Nabla Ingenieure Deutschland GmbH (Auggen) and Nabla Ingenieure GmbH (Olten, Switzerland) — serving government transportation authorities, tunnel operators, and infrastructure owners primarily in the DACH region. Its customer base includes Regierungspräsidium Karlsruhe, Bundesamt für Straßen ASTRA (Switzerland), Stadt Bremerhaven, and Tiefbauamt Graubünden, with engagements spanning concept design through construction supervision and operational support.

The company has built a proprietary software suite called nablaTOOLS in Matlab/Simulink. nablaCONTROL provides a real-time digital tunnel model for simulating normal and fire operation via 1D airflow and smoke propagation, with an OPC interface for direct PLC coupling. nablaRISK performs risk analyses for road tunnels using Bayesian networks (Swiss ASTRA methodology) and event trees (German RABT 2006) and is officially validated by ASTRA. nablaDigitalTwin extends nablaCONTROL into hardware-in-the-loop testing using a Speedgoat real-time target machine, while nablaTHERM simulates flow and temperature fields in energy transmission tunnels for horizons up to 50 years. These tools are adapted on a project- and object-specific basis.

Nabla generates revenue from two streams: professional engineering consulting services (planning, design, and construction supervision for tunnel ventilation, safety, and operational support) and software tool licensing/customization tied to client projects. Pricing is not publicly disclosed; engagements are acquired through competitive public-sector tendering and delivered directly by the in-house engineering team without resellers or channel partners.

Name

Nabla Engineering

Legal name

Nabla Ingenieure Deutschland GmbH

Website

https://nabla-engineering.com

Company type

Private

Founded year

2015

Operating status

Operating

Headcount range

1–10 employees

Short description

Nabla Engineering is a DACH-region engineering consultancy that plans, simulates, and supervises tunnel ventilation and safety systems for government transportation authorities, using a proprietary Matlab/Simulink-based nablaTOOLS suite including nablaCONTROL, nablaRISK, nablaDigitalTwin, and nablaTHERM.

Ownership category

akta.pro rank

Product category

Tunnel Engineering Services

NAICS

Engineering Services (54133), Other Scientific and Technical Consulting Services (541690), Architectural, Engineering, and Related Services (5413), Other Scientific and Technical Consulting Services (54169)

SIC

Services-Engineering Services (8711), Services-Engineering, Accounting, Research, Management (8700)

akta.pro primary industry

Reliability, Safety & Risk Engineering (RAMS/PSM) Consulting (BPAHAIAK)

akta.pro secondary industries

Instrumentation, Controls & Automation Engineering Consulting (BPAHAIAM), Testing, Inspection, Certification & Commissioning (TICx) Technical Services (BPAHAIAL), Tunnels & Underground Rail Civil Construction (IMAFAFAE)

Keywords

• Tunnel ventilation engineering
• Tunnel risk analysis
• Traffic infrastructure safety
• Engineering consulting services
• Digital tunnel simulation

Headquarters

HQ city

Auggen

HQ country

Germany

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Engineering Consulting Services: Professional services revenue from engineering consulting, planning, and construction supervision for tunnel ventilation and safety systems. Services include concept development, design planning, execution planning, and construction supervision across all project phases.
2. Software Tool Licensing and Customization: Revenue from proprietary nablaTOOLS software products which are customized and further developed for specific client projects. Tools are adapted on an object- and project-specific basis.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels5 records

Core offering

Nabla Engineering provides specialist engineering consulting services for tunnel ventilation, safety, and risk across road, rail, and energy transmission tunnels, combined with proprietary Matlab/Simulink-based simulation software (nablaCONTROL, nablaRISK, nablaDigitalTwin, nablaTHERM) that is customized and licensed to clients. The firm supports government transportation authorities from concept development through design planning, execution planning, construction supervision, and operational support.

Product overview

Nabla Engineering offers a suite of four proprietary engineering software tools (nablaTOOLS) designed for tunnel and infrastructure applications. The core products include nablaCONTROL (a digital tunnel simulation model in Matlab Simulink for ventilation planning and operation), nablaDigitalTwin (a hardware-in-the-loop successor with direct automation network coupling), nablaRISK (risk analysis software validated by Swiss authorities ASTRA), and nablaTHERM (thermal-flow simulation for energy transmission tunnels). These tools are complemented by engineering services spanning tunnel ventilation (road, rail, and energy tunnel applications), safety assessments, organizational safety management, accident prevention, and operational support. The product portfolio integrates technical capabilities for the full project lifecycle from planning through to operational management of traffic and infrastructure facilities.

Differentiator

Problem solved

Functional benefit

Brands

• nablaCONTROL: Digital tunnel model programmed in Matlab Simulink - a comprehensive digital tunnel model for real-time simulation of normal and fire operations, combining 1D flow and smoke spread models
• nablaRISK
• nablaDigitalTwin
• nablaTHERM

Products and services

• nablaCONTROL Digital tunnel model programmed in Matlab/Simulink that integrates all project phases from planning to operation of tunnel ventilation systems. Simulates normal and fire operation in real time using a 1D airflow and smoke propagation model, with closed-loop control simulation, OPC interface for direct coupling with PLC/SPS control hardware, and optimization algorithms for operational efficiency. Sold/licensed to government transportation authorities and tunnel operators.
• nablaRISK Risk analysis tool for assessing safety in road traffic tunnels, supporting Swiss (ASTRA) and German (RABT 2006) guidelines and covering dangerous goods transport (ADR). Built on Bayesian networks for the Swiss methodology and event trees for the German methodology, with coupling to nablaCONTROL for smoke propagation simulation in risk analysis. Officially validated by Swiss ASTRA as the first independently developed risk analysis tool.
• nablaDigitalTwin Hardware-in-the-loop (HIL) digital twin with direct connection to the automation network via a Speedgoat real-time target machine, where the PLC/SPS is embedded as a system connected via Profibus to the HIL simulator. Functions as a testing tool for PLC programming validation and as a training tool for tunnel operators.
• nablaTHERM Simulation tool for calculating flow and temperature fields in energy transmission tunnels, using a cylindrical coordinate system with coupled flow model and solid model (concrete/rock) at the tunnel inner wall. Enables short-term and long-term simulations up to 50 years, accounting for weather fluctuations and thermal inertia of surrounding rock.
• Road Tunnel Ventilation Engineering Services Complete engineering services for road tunnel ventilation systems, from initial concept through to implementation, ensuring adequate air quality in normal operation and smoke and heat control during vehicle fires during the self-rescue phase. Delivered to government road authorities and tunnel operators.
• Rail Tunnel Ventilation Engineering Services Engineering services for rail tunnel ventilation, including cross ventilation systems, smoke-free access to incident locations, and climate control for technical infrastructure in cross-passages. Delivered to rail infrastructure authorities and operators.
• Energy Transmission Tunnel Ventilation Services Ventilation planning for energy transmission tunnels, addressing environmental compliance and operational safety through temperature simulation using nablaTHERM. Delivered to utility and infrastructure operators.
• Construction Ventilation Services Construction ventilation services for drilling, tunneling, or blasting operations to maintain air hygiene standards by managing gases and dust. Delivered to construction contractors and project owners.
• Tunnel HVAC Engineering Services Heating, ventilation, and air conditioning (HVAC) planning for tunnel technical centers, ensuring environmental conditions meet manufacturer specifications for equipment reliability and energy optimization. Delivered to tunnel operators and infrastructure owners.
• Tunnel Safety Assessment Services Qualitative and quantitative safety assessments for road and rail tunnels, including expert opinions, safety analyses, and risk-based evaluation of safety measures aligned with guideline-based approaches (ASTRA, RABT 2006). Delivered to government transportation authorities and tunnel operators.
• Organizational Safety Services Organizational safety services covering safety documentation, emergency response plans, fire brigade plans per DIN 14095, and emergency exercises throughout the facility lifecycle. Delivered to tunnel operators and government transportation authorities.
• Accident Prevention and ADR Classification Services

Quantifiable outcome

• First engineering office with officially recognized risk analysis tool by Swiss Federal Roads Office ASTRA
• +1 more outcomes

Named customers5 records

Segments2 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration3 records

Feature4 records

Partnerships

Two partnerships are on record, tiered core.

• Gruner AGcoreStrategic or Co-development Partner · 1 January 2013Gruner AG acts as member of IG Gottardo Due on behalf of the Swiss Federal Roads Office ASTRA in the A2 Gotthard tunnel project. Nabla Engineering participates in this consortium arrangement for tunnel ventilation planning and tunnel safety mandate.
• speedgoatcoreTechnology or Integrationspeedgoat provides real-time target machine technology used as the HIL simulator in nablaDigitalTwin. This hardware enables direct connection to the automation network for hardware-in-the-loop testing of PLC programs and tunnel operator training.

Scale indicators3 records

Recent moves7 records

Expansion highlights5 records

Direct peers

• Gruner AG: Swiss engineering firm active in tunnel safety, fire protection and risk analysis and an existing consortium partner of Nabla on the Gotthard tunnel mandate; competes for similar ASTRA and cantonal tunnel-safety mandates.
• Amberg Engineering: Swiss tunneling and underground infrastructure engineering firm with deep expertise in design, safety and risk analysis of road and rail tunnels, including work for ASTRA; directly comparable in technology stack and Swiss public-sector client base.
• Wölfel Engineering: German engineering firm specializing in structural dynamics, vibration and tunnel/underground infrastructure engineering; comparable niche specialist with project-based consulting on complex tunnel projects in Germany.
• Basler & Hofmann: Swiss engineering consultancy with a tunnel safety and ventilation practice serving ASTRA and cantonal clients; comparable in specialty focus and cross-discipline (ventilation, safety, risk) project scope.
• Lombardi Engineering (part of Lombardi Group): Swiss engineering consultancy with significant tunnel and underground infrastructure expertise, including risk analysis and ventilation design; operates in the same Swiss public-procurement arena as Nabla.
• HBI Haerter Ingenieure: German engineering consultancy specializing in tunnel ventilation, fire protection and safety engineering for road and rail tunnels; the closest direct competitor to Nabla's core tunnel-ventilation and safety mandate work in the DACH region.

Broad incumbents

• AFRY (formerly Pöyry and ÅF): Large European engineering and design firm with transportation and tunnel engineering capabilities; a broad incumbent that can staff tunnel safety and ventilation projects at scale across multiple geographies.
• ILF Consulting Engineers: Large international engineering consultancy with a substantial tunneling practice covering ventilation, safety and risk analysis; competes for major tunnel mandates across DACH but as part of a much broader infrastructure portfolio.

Others

• Spacetec (now part of SWECO): Engineering consultancy with capabilities in tunnel safety, BIM and digital simulation for infrastructure; adjacent technology peer rather than direct competitor given its broader, multi-disciplinary footprint.

Regional players

• Vössing Ingenieure: German engineering consultancy with significant transportation infrastructure and tunneling expertise; competes in the German market for tunnel planning, supervision and safety-related mandates.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/NablaIngenieure
• LinkedInlinkedin.com/company/nabla-engineering
• Instagraminstagram.com/nabla_engineering

Revenue estimate

Valuation estimate

Number of profiles

Profiles10 records

Funding overview

Funding rounds

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 Nabla Engineering