ILLUMIA TREND SRL
Corporate brand
UnclaimedItalian energy retailer supplying electricity, gas and fibre to households, part of Gruppo Tremagi.
Last updated September 28, 2026
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Overview
Illumia (registered as ILLUMIA TREND SRL) is an Italian energy company that sells electricity, natural gas and fibre connectivity to residential customers. Its consumer proposition is built around simplicity and transparency: the official website promotes fixed-price energy plans, online activation, a customer area, self-meter reading and call-verification tools, alongside energy-efficiency products. The company states that it has been active in the energy market for around 20 years and serves roughly one million customers, positioning itself as a large independent Italian energy retailer rather than a legacy incumbent utility. Illumia's product range covers three main household needs. Under "Luce" it offers electricity contracts, including a headline "Energia Lunga" fixed-price offer valid for three years with no withdrawal penalties for customers who stay for the full term. Under "Gas" it sells natural-gas supply plans. Under "Fibra" it markets fibre broadband, and it also promotes energy-efficiency products. The website provides coverage checks for fibre, a customer portal, self-reading submission and a call-verification service that lets consumers confirm whether a phone number belongs to an authorised call centre acting for Illumia. Illumia belongs to Gruppo Tremagi, and the company has publicly reported continued growth, including a 2024 financial statement and a redesigned bill format for electricity and gas. It has received an "Operatore Eccellente" recognition awarded by Consumerismo No Profit, and it runs sustainability collaborations under the "Save the Planet" theme. Its marketing emphasises "energia positiva" and supports people willing to take on new challenges. The brand competes in Italy's liberalised retail energy market, where suppliers differentiate through price certainty, contract length, digital self-service and bundled services such as broadband. Illumia's emphasis on fixed pricing, no surprise charges and multi-year loyalty reflects that competitive dynamic.
History
Illumia operates in the Italian energy market, where it says it has been active for around 20 years. The company is registered as ILLUMIA TREND SRL and is part of Gruppo Tremagi. Over time it has grown into a household energy supplier serving approximately one million customers, according to its own website. Its consumer-facing business is organised around electricity (Luce), natural gas (Gas) and fibre broadband (Fibra), with additional energy-efficiency products. A central element of its commercial strategy has been long-term fixed-price offers: the "Energia Lunga" proposition guarantees a fixed price for three years and states that no withdrawal charges apply for customers who remain for the full period, framed as a "pact of mutual trust." Illumia has invested in digital customer service, offering online activation, a reserved customer area, self-meter reading and a call-verification tool that lets customers check whether a phone number belongs to an authorised call centre. It has also addressed billing transparency, introducing a new electricity and gas bill format. In recent years the company has highlighted growth and recognition. It received an "Operatore Eccellente" award from Consumerismo No Profit, and Gruppo Tremagi reported continued growth in 2024, with Illumia presenting its 2024 financial statement. The brand also promotes sustainability through "Save the Planet" collaborations and markets itself under the slogan of "energia positiva."
Illumia states it has been active in the Italian energy market for around 20 years
Illumia reaches approximately one million customers
Illumia receives 'Operatore Eccellente' recognition from Consumerismo No Profit
Gruppo Tremagi reports continued growth in 2024
Illumia presents its 2024 financial statement
Illumia introduces a new electricity and gas bill format
Products and positioning
Independent Italian household energy retailer emphasising fixed prices, transparency and bundled fibre.
Energia Lunga
Three-year fixed-price electricity offer with no withdrawal charges for customers who stay for the full term.
Luce offers
Electricity supply plans for households.
Gas offers
Natural gas supply plans for households.
Fibra
Fibre broadband service with coverage check.
Energy-efficiency products
Products for improving household energy efficiency.
Sources2 sources
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