2i Rete Gas
An Italian gas-distribution infrastructure operator serving millions of customers through a nationwide network of local concessions.
Last updated August 22, 2026
Overview
2i Rete Gas is an Italian natural-gas distribution company headquartered in Milan. It operates local distribution infrastructure rather than producing gas, owning long-distance transmission systems, or primarily selling gas to end customers. Its role is to manage the final distribution stage: gas enters local networks from upstream or transmission systems and is conveyed through pipes to households, businesses and other connected users. The company also performs infrastructure functions including network operation, maintenance, safety management, metering-related activities and connections. The business is based on a large portfolio of regulated local concessions. Italian gas distribution is organized around geographically defined concession areas, commonly associated with Ambiti Territoriali Minimi, or ATEMs. This makes the company an infrastructure and public-service operator whose scale depends on concession coverage, network assets, operational reliability and regulatory compliance. Distribution networks are generally used by multiple market participants under regulated access rules, distinguishing 2i Rete Gas from an energy retailer that contracts directly with consumers for commodity supply. The company became a significant participant in the Italian gas-distribution market through a series of acquisitions and consolidation steps. Its early expansion included the acquisition of Colombo Gas in 2000 and Gruppo Camuzzi in 2002. A major transformation followed the 2009 acquisition of Enel Rete Gas by investment funds associated with F2i and Axa Private Equity, now Ardian. Subsequent transactions and internal reorganization brought additional networks into the group, including assets formerly associated with E.ON Rete and GDF SUEZ. In 2014, Enel Rete Gas was renamed 2i Rete Gas. Reference material describes 2i Rete Gas as Italy's second-largest gas-distribution operator and the principal independent player in the sector. It has been reported as serving approximately 3.8 million customers through a network of about 57,000 kilometers, operating in 18 regions and around 2,000 municipalities. The same material attributes a market share of approximately 17 percent to the company, although such figures are time-specific and can change as concessions, volumes and market definitions change. The company is controlled by infrastructure-oriented investors. Reference material identifies F2i One and F2i Two as holding a combined 72 percent, with Ardian holding 28 percent alongside an institutional long-term investor structure. Its strategic rationale has been to consolidate a fragmented Italian distribution market, achieve operating efficiencies across concession areas and strengthen its position in future ATEM processes. Because gas distribution is regulated and concession-based, the company’s performance is linked not only to customer numbers and network length but also to tariff decisions, concession awards, investment requirements, safety standards and the broader transition in Italy’s energy system.
History
2i Rete Gas is the result of consolidation in Italy’s local natural-gas distribution industry. The company’s historical development is tied to the acquisition of networks and distribution businesses rather than to the discovery, production or international trading of gas. Its operating model is based on managing local infrastructure under regulated concessions and providing distribution capacity to suppliers and connected users. The business first appeared as a participant in the Italian gas-distribution sector through the acquisition of Colombo Gas in 2000. In 2002, it expanded through the acquisition of Gruppo Camuzzi, a business reported to have approximately one million customers. These transactions established an early platform for growth in a market characterized by many local operators and a broad range of municipal concessions. A decisive change occurred in September 2009, when F2i and Axa Private Equity, now known as Ardian, acquired Enel Rete Gas. The transaction gave the investment-backed group a much larger operational base. Reference material indicates that the customer base grew from approximately 2.1 million to about 3.8 million by 2012, in part through a broader consolidation process. The new ownership structure positioned the company as an independent competitor to other major Italian gas-distribution operators. In October 2011, the company’s shareholders reorganized and enlarged the network portfolio. 2i Rete Gas acquired 2iGas Infrastruttura Italiana Gas, formerly E.ON Rete, and G6 Rete Gas, a business associated with GDF SUEZ. The acquired companies had been among the larger participants in the Italian distribution market. Their integration increased geographic reach and strengthened the group’s presence across multiple concession areas. In December 2013, F2i and Ardian acquired a further 14.8 percent interest in Enel Rete Gas from Enel. At the beginning of 2014, Enel Rete Gas was renamed 2i Rete Gas. The new identity separated the company from its former industrial parent and emphasized its role as an independent infrastructure platform backed by financial investors. Reference material describes the resulting business as Italy’s second-largest gas-distribution operator and the only fully independent major player in the sector at the time described. It reports approximately 57,000 kilometers of network, operations in 18 regions, management of concessions in 137 of 177 ATEM areas, and service to about 3.8 million customers in roughly 1,961 municipalities. The company’s reported market share was approximately 17 to 17.2 percent by gas-distribution volumes, with around 5.9 billion cubic meters distributed in the cited period. The company’s strategic objective has been to consolidate Italy’s fragmented gas-distribution market. Scale can support standardized safety practices, procurement, technical expertise, maintenance capability and concession management, while also creating exposure to regulatory decisions and future tenders. Its long-term position is therefore shaped by the renewal and assignment of local concessions, regulated tariffs, mandated network investment and changes in the role of natural gas in Italy’s energy transition. The available reference material does not establish a complete current ownership chart, current executive roster, website or later financial performance, so those details are not asserted here.
- 2014Adoption of the 2i Rete Gas name
Enel Rete Gas was renamed 2i Rete Gas, formalizing its identity as an independent infrastructure company.
- 2013Additional stake acquired from Enel
F2i and Ardian acquired an additional 14.8 percent interest in Enel Rete Gas from Enel.
- 2011Acquisition of E.ON Rete and G6 Rete Gas assets
The company acquired 2iGas Infrastruttura Italiana Gas, formerly E.ON Rete, and G6 Rete Gas as part of a shareholder-led network reorganization.
- 2009Acquisition of Enel Rete Gas
F2i and Axa Private Equity, subsequently Ardian, acquired Enel Rete Gas, creating the foundation for a major independent gas-distribution platform.
- 2002Acquisition of Gruppo Camuzzi
The acquisition of Gruppo Camuzzi expanded the company’s customer and concession base in Italian local gas distribution.
- 2000Entry through the acquisition of Colombo Gas
2i Rete Gas appeared as a participant in the Italian gas-distribution sector through the acquisition of Colombo Gas.
Products and positioning
A large, independent and regulated Italian gas-distribution infrastructure operator focused on network scale, concession management, safety, reliability and operational efficiency.
Natural gas distributionEnergy infrastructure service
The company’s principal activity is operating local natural-gas distribution networks. Gas received from upstream or transmission systems is conveyed through local networks to areas containing residential, commercial and other connected customers. The service is provided within regulated concession arrangements and is distinct from gas production, long-distance transmission and retail supply.
Gas network operation and maintenanceUtility infrastructure management
This offering covers the day-to-day operation, inspection, maintenance and safety management of local gas networks. It includes technical activities required to preserve continuity and integrity of service across a geographically dispersed portfolio of municipal and territorial concessions.
Metering and network access servicesGas distribution support service
2i Rete Gas provides infrastructure-related metering and connection support associated with its distribution networks. These activities allow eligible users and market participants to access the network under applicable Italian regulatory rules. Specific responsibilities depend on concession terms and the relevant energy-regulation framework.
Flagship businesses
- Nationwide local natural-gas distribution network services
- Operation of gas networks across Italian concession areas
Brand decisions
- 2014Rebrand as 2i Rete GasStrategy
Following the change in ownership and the consolidation of additional distribution businesses, the company required an identity separate from its former Enel affiliation.
What changed. Enel Rete Gas adopted the name 2i Rete Gas.
Aftermath. The rebrand established the company as an independent gas-distribution infrastructure group backed by financial and institutional investors.
- 2011Integrate additional gas-distribution networksM&A
The shareholder group sought to consolidate a fragmented distribution market and increase the geographic and concession coverage of the platform.
What changed. 2i Rete Gas acquired 2iGas Infrastruttura Italiana Gas, formerly E.ON Rete, and G6 Rete Gas.
Aftermath. The acquisitions expanded the network portfolio and supported the company’s nationwide operating footprint.
- 2009Acquire Enel Rete Gas and build an independent platformM&A
The Italian gas-distribution market was fragmented, while Enel Rete Gas represented a substantial operating platform with a large customer and concession base.
What changed. F2i and Axa Private Equity acquired Enel Rete Gas, creating the basis for an infrastructure-investor-controlled independent operator.
Aftermath. The transaction was followed by further acquisitions and customer growth, strengthening the company’s position among Italy’s largest gas-distribution operators.
Recent events
- 2014Enel Rete Gas renamed 2i Rete Gas
At the beginning of 2014, Enel Rete Gas adopted the 2i Rete Gas name, reflecting its ownership and strategic identity as an independent gas-distribution infrastructure group.
Other - 2013F2i and Ardian increase their stake in Enel Rete Gas
F2i and Ardian acquired an additional 14.8 percent stake in Enel Rete Gas from Enel, further consolidating investor control before the company adopted the 2i Rete Gas name.
M&A - 20112i Rete Gas expands through network acquisitions
The company reorganized and acquired 2iGas Infrastruttura Italiana Gas, formerly E.ON Rete, and G6 Rete Gas, formerly associated with GDF SUEZ. The transactions increased the group’s scale in the fragmented Italian distribution market.
M&A - 2009F2i and Ardian acquire Enel Rete Gas
The acquisition of Enel Rete Gas by F2i and Axa Private Equity, later Ardian, marked a major expansion of the company and helped establish its subsequent position as a leading independent Italian gas-distribution operator.
M&A
Sources
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