Energy Audits













Gain insight into your energy consumption and reduce costs
Gain detailed insight into your energy consumption. Discover where your energy consumption can be more efficient and identify cost-saving quick wins and long-term solutions.
Meet the demands of customers and governments. We ensure your organization perfectly complies with the reporting requirements of governments, customers, and partners.
Foundation for further steps. Use the data insights from the audit to strengthen further sustainability initiatives such as a Climate Action Plan or Carbon Footprint Analysis.
Which energy audit is right for you?
Energy Scan: for quick
insights and savings
Energy Balance &
Energy Audit for Large Enterprises & SMEs
Energy studies &
energy plans


An energy audit that makes a measurable impact
Team of experienced experts. A team that analyzes your organization from within and immediately spots the biggest energy opportunities.
Tailored guidance. Don't expect standard reports, but a well-thought-out plan that fits your organization and goals.
Measurable savings. Most clients save 10 to 15% on their energy costs within the first year after the audit.
Start saving tomorrow
Do you want to know where you're losing energy? Schedule an introductory meeting, get an energy audit, and immediately discover where you can save.
Not our words
"The team always thinks along with us, for both the short and long term. Pragmatic, efficient, and technically excellent. Their experience has often made the difference for us, in strategy and in the field."
Marc Croonen
Chief HR, Sustainability & Communication at Vandemoortele
“Why Mantis? An accessible approach and high level of expertise. They successfully translate complex regulations into something workable for our organization.”
Jan Laroy
Managing Partner at Urbastyle
Frequently Asked Questions
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An energy scan provides a quick overview of potential savings and is ideal if you want to gain a basic understanding of your energy consumption. An energy audit is more comprehensive and delves deeper into the analysis of your total energy management, which is particularly relevant for larger companies.
The exact savings you achieve naturally depend on your company's specific circumstances. After an energy audit, clients often immediately start saving 10 to 15% on energy costs, without major interventions. An audit also identifies further opportunities for sustainability.
The duration of an energy audit varies, depending on the size and complexity of your company. On average, it takes several weeks to complete the full audit, from initial contact to the delivery of the report.
An energy audit provides an excellent foundation for other sustainability projects, such as a Carbon Footprint Analysis or a Climate Action Plan. We are happy to help you integrate these initiatives into a coherent action plan.
Following the audit, you will receive a detailed report with concrete recommendations for energy-saving measures. By implementing these, you reduce your energy consumption and improve your sustainability. We offer advice and support throughout.