ista is the world leader in the submetering industry - the measurement of energy and water consumption and the cost allocation for multi-occupant properties.

ista sells a range of meter hardware as well as providing a comprehensive package of related services, such as maintenance, meter reading, data processing and billing. ista is primarily a service company that uses hardware sales as a means to generate service revenues.

ista's headquarters are in Essen, Germany. The company employs around 4,800 people globally and is active in 26 countries, serving 12 million homes and more than 450,000 customers. ista's most significant market is Germany which accounts for slightly more than 50% of revenues.

We continue to further improve cost and service performance in our core business, while pursuing additional geographical and external growth opportunities which will give ista access to new fast growing and attractive market segments.

Thomas Zinnoecker, CEO

Date of investment

April 2013


Fund V


Submetering services




€785.1 million

Number of employees



Thomas Zinnoecker

Company website