Waves

Manage emissions with clarity and confidence

Through our advanced emissions software and regulatory expertise, we help you stay compliant and reduce environmental risk.

10,419,498
sources were measured by our experts in 2025.
38,689,058 kg
of annualized emissions detected - enabling customers to repair leaks.
Helmet

Intero – The Sniffers rebrands to Aellia

Intero - The Sniffers is proud to announce its rebranding to Aellia, marking an important milestone in the company’s evolution and its expanded role in environmental and emissions intelligence. This transition reflects a stronger, more integrated positioning, combining precise emissions measurement with deep industrial expertise. While the brand evolves, clients will continue to rely on the same trusted teams, capabilities, and operational standards, with enhanced solutions to support regulatory compliance, transparency, and emissions performance management.

ENV - OGMP 2.0 services and advisory

Aellia is part of Intero.

At Intero, we strive to keep the industry going. It’s about maintaining a sense of momentum with a future-proof approach. Enabling compliant operations with a turn-key mindset.

Accelerating integrity with inspection, industrial, and environmental services that meet 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 history

1994
1994

Dogs detecting leaks

The Sniffers was founded and the company has its headquarters in Belgium. Initially starting with dogs detecting leaks in chemical installations.

2002
2002

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.

2005
2005

Expansion into Middle East

Based on a strong customer base in Belgium and The Netherlands, The Sniffers expanded in 2005 into the Middle East.

2008
2008

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.

2015
2015

PERSEUS

The pipeline integrity services are supported by PERSEUS, The Sniffers Pipeline Information Management System.

2018
2018

Expansion into Africa

The Sniffers becomes part of WTS Energy and further expands into Africa.

2019
2019

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.

2020
2020

New integrations

The Sniffers integrates the pipeline integrity application and the related services from DMC 1 GmbH, in its pipeline integrity service portfolio.

2022
2022

Rebranding

The Sniffers is rebranded to Intero - The Sniffers to position ourselves as part of Intero Integrity Services.

2024
2024

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.

2025
2025

Merger with Aeromon

Intero - The Sniffers 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.

2026
2026

Intero - The Sniffers rebrands to Aellia

Intero – The Sniffers rebrands to Aellia, reflecting its evolution into an integrated provider of environmental and emissions intelligence, combining precise measurement with deep industrial expertise.