Incorporated in 2010, E To E Transportation Infrastructure Limited is an ISO 9001:2015 certified company engaged in providing system integration and engineering solutions for the railway sector. Service Offerings: Signaling and Telecommunications (S&T), Overhead Electrification (OHE), Track Projects and System Integration, Private Sidings and Engineering Design and Research Centre (EDRC). The company operates across mainline, urban transit, and private siding segments, offering end-to-end rail engineering services including design, procurement, installation, and testing. The company’s expertise spans signaling and telecommunication systems, track electrification, and turnkey railway infrastructure projects involving civil and track components. Over the years, it has executed projects for zonal railways, public sector undertakings under Indian Railways, corporate entities with private rail sidings, and infrastructure development companies in India and select international markets. Its major projects include CBTC signaling for Hyderabad and Nagpur Metro, signaling and telecommunication modernisation for Vizag Steel Plant and NUPPL Power Plant, electronic interlocking system upgrades for Hosur–Salem, siding expansion for Gujarat Pipavav Port with DFCC connectivity, and platform screen door installations for Mumbai Metro Line 3 and Chennai Metro Phase 1. As of June 30, 2025, the company’s order book comprised 49 ongoing contracts valued at ?43,964.38 lakh. As of July 31, 2025 the company has of 425 full time employees.