Elstor Oy ranked 91st on Deloitte’s EMEA Technology Fast 500 list

Elstor Oy has been recognized in Deloitte’s EMEA Technology Fast 500 2025 ranking, which brings together the 500 fastest-growing technology companies in Europe, the Middle East, and Africa. Elstor Oy ranked 91st on the list.

This recognition reflects Elstor Oy’s growth journey in recent years, as well as its determined work to advance zero-emission industrial steam production. In Deloitte’s ranking, companies are evaluated based on percentage revenue growth, and in the 2025 listing, Elstor Oy recorded a growth rate of 1,554.84%. Elstor Oy is listed in the Environmental Technology category.

Elstor Oy’s solution responds to the growing need within industry to replace fossil fuel-based steam production with a zero-emission and commercially viable alternative. Elstor Oy’s thermal energy storage solution stores clean electricity as heat and converts it into steam for industrial processes when steam is needed.

Deloitte’s recognition strengthens Elstor Oy’s position as part of the industrial energy transition. The company’s goal is to lead the shift towards zero-emission industrial steam production. This growth has not been driven by a single success, but by long-term development work, close customer collaboration, and technology that responds to practical industrial needs.

Elstor Oy’s operations are guided by innovation, reliability, customer satisfaction, and working together. These values are reflected in the development and implementation of the solution, as well as in collaboration with industrial customers. Each completed project contributes to the goal of making industrial steam production more emission-free, flexible, and sustainable.

We would like to thank our customers and the entire Elstor Oy team for their trust, collaboration, and committed work. Above all, this recognition demonstrates what can be achieved when technology, industrial needs, and working together come together.