Your strategic partner in emissions intelligence, compliance, and environmental performance.
You operate in a world where environmental responsibility is no longer optional. To act with confidence, you need reliable data, clear insights, and a trusted partner who understands both operations and regulation.
Aellia helps asset-intensive industries quantify, interpret, and reduce environmental emissions through accurate field measurements, advanced analytics, and regulatory expertise. We transform complex emissions data into reliable insights that support informed decision-making.
Our approach combines real-world measurement expertise with ISO- and lab-accredited methodologies, proprietary software, and deep knowledge of evolving regulations. The result is emissions data that is traceable, audit-ready, and actionable. This enables our clients to comply with standards, communicate confidently with stakeholders, and improve environmental performance over time.
For more than 30 years, we have supported companies globally with practical environmental solutions. With teams in eight countries and projects delivered in over 40 countries, we partner with clients from field execution through compliance and long-term performance improvement.
Beyond measurement, we help organizations move from reactive compliance to proactive environmental management.
Laboratory accredited environmental services
Our certifications and accreditations prove that our processes are scientifically robust and consistent.
Aellia is certified for the ISO 9001, ISO 14001, ISO 27001 and SCC** standard and has obtained the ISO 17025 Laboratory Accreditation. We are also DVGW G 468-1 certified in Germany.
Our technology
We are the pioneers of mobile emission monitoring. Whilst our measurement capability is already market-leading, we continue to develop and innovate for us to ensure that the best available technology is at your disposal.
We are part of Intero
Aellia delivers the environmental services of Intero. Together with Intero's inspection and industrial services, we aim to accelerate integrity that meets today’s and tomorrow’s needs of the critical infrastructure sector. We’re the safeguards of people and assets, working with efficiency, responsibility, and safety in mind.
Our values
Our People
Environmental, Social & Governance
Our history
Dogs detecting leaks
The Sniffers was founded and the company has its headquarters in Belgium. Initially starting with dogs detecting leaks in chemical installations.
Expanding services
The Sniffers invested in specialized detection equipment and offers a wide range of services to detect and quantify emissions, energy losses and pipeline network defects.
Expansion into Middle East
Based on a strong customer base in Belgium and The Netherlands, The Sniffers expanded in 2005 into the Middle East.
Active globally
The company further expands with the help of Private Equity and executes projects around the world. Emission reduction in the oil and gas industry becomes a global activity.
PERSEUS
The pipeline integrity services are supported by PERSEUS, The Sniffers Pipeline Information Management System.
Expansion into Africa
The Sniffers becomes part of WTS Energy and further expands into Africa.
Acquisition by Intero
The Methane Accounting Program, focused on reducing Global Warming effects and the latest version of SFEMP, Sniffers Full Emission Management Platform are launched. The Sniffers becomes part of Intero Integrity Services.
New integrations
The Sniffers integrates the pipeline integrity application and the related services from DMC 1 GmbH, in its pipeline integrity service portfolio.
Rebranding
The Sniffers is rebranded to Intero - The Sniffers to position ourselves as part of Intero Integrity Services.
Merger with TP Europe
Intero - The Sniffers merges with TP Europe; a service provider delivering similar comprehensive emission solutions to the global oil and gas industry.
Merger with Aeromon
Aellia and Aeromon merge to establish the most complete suite of emission detection, quantification, and management solutions available worldwide, enabling customers to access laboratory accredited emission services.
Intero - The Sniffers becomes Aellia
This new name reflects more than a visual change. It marks the next step in our evolution as a company and reinforces our ambition to continue strengthening our role in environmental and emissions intelligence solutions.