Excellence in engineering since 1988 - the multidisciplinary firm keeping America's power, gas, water, and federal infrastructure running.
E2 Consulting Engineers, Inc. — Headquartered at 2100 Powell Street, Emeryville, California. Founded by Hersh Saluja. Photographed: the company wordmark, matte navy on white.
E2 Consulting Engineers is a multidisciplinary engineering and technical consulting firm. It does not build consumer products or chase headlines. It does the work that keeps everyday life functioning: designing, managing, inspecting, and maintaining the electric grids, gas pipelines, water systems, and federal facilities that most people never think about until they fail.
Founded in 1988 by Hersh Saluja, the company began with a narrow focus - water and wastewater consulting for municipal and federal clients. Over three and a half decades it expanded, deliberately, into transportation, power delivery, gas utilities, environmental remediation, and federal services. The through-line is a promise the firm still prints on its own front door: "excellence in engineering and exceptional client service."
Today E2 fields more than 800 professionals - engineers, scientists, inspectors, project managers, and technical specialists - across 11 offices in the United States. Its work sits at the center of the current infrastructure moment: grid modernization, wildfire mitigation, pipeline safety, undergrounding, substation upgrades, and the broad build-out driven by federal spending under the Infrastructure Investment and Jobs Act and the Inflation Reduction Act.
E2's clients are the operators of critical infrastructure - the utilities and agencies who cannot afford to get engineering wrong.
On the utility side, the roster reads like a map of American energy: Pacific Gas & Electric, Southern California Gas and its parent Sempra, Southern California Edison, San Diego Gas & Electric, Ameren, Xcel Energy, and Southern Company Gas. On the federal side, E2 has supported the U.S. Department of Energy since 1992, along with the U.S. Army Corps of Engineers and work tied to sites like Savannah River. It also partners with engineering primes such as AECOM, Jacobs, Bechtel, and BWXT.
The problems these clients bring are unforgiving. A gas pipeline has to be inspected and proven compliant. A transmission system has to be hardened against wildfire. A substation has to be modernized without interrupting service. A nuclear facility has to be operated and maintained to federal standards. A contaminated site has to be investigated, permitted, and remediated within regulatory limits. E2's business is absorbing that complexity so the client's lights - literal and figurative - stay on.
E2 organizes its expertise into a handful of service lines that can be delivered separately or stitched into a single multi-year program.
Program management, project controls, scheduling, cost estimating, and document controls for large, multi-year utility and infrastructure programs.
Civil, electrical, mechanical, and power-system engineering and design for utilities, transportation, and water/wastewater clients.
Construction management, field inspection, gas pipeline construction and inspection, and pipeline integrity management.
Environmental investigation, permitting, remediation, monitoring, and regulatory compliance across sites and programs.
Facility operations and maintenance, nonproliferation and international security support, and federal base operations - including DOE nuclear work.
Supply chain and supply-management services supporting the procurement and logistics needs of utility and infrastructure clients.
Excellence in engineering and exceptional client service.
In a field dominated by giants like AECOM, Jacobs, Stantec, Burns & McDonnell, and POWER Engineers, E2 competes as a nimble multidisciplinary specialist rather than a global generalist.
Two things set it apart. First, breadth relative to size: a firm of roughly 800 people rarely covers water, power, gas, transportation, environmental, and federal work under one roof. That range lets E2 hand a utility one accountable partner across an entire program instead of a stack of narrow vendors. Second, its standing as a certified minority-owned Small Disadvantaged Business - recognized by the Western Regional Minority Supplier Development Council and the California Public Utilities Commission Supplier Clearinghouse. For utilities and agencies with supplier-diversity mandates, that certification is not a footnote; it is a reason to be at the table.
The business model is straightforward B2B professional services. E2 bills engineering, project management, inspection, and environmental expertise to utilities, agencies, and infrastructure operators - largely through multi-year program contracts and master service agreements. Revenue tracks the pace of infrastructure investment, which is precisely why its growth accelerated alongside recent federal spending.
Hersh Saluja starts E2 in the Bay Area, providing water and wastewater consulting to municipal and federal clients.
Begins supporting the U.S. Department of Energy for nuclear facility operations and maintenance.
Launches project management and pipeline construction and inspection services for utilities including SoCalGas and PG&E.
Named to Forbes America's Best Small Employers and recognized as a fast-growing Bay Area company by the SF Business Times.
Earns a spot on the Inc. 5000 amid revenue growth tied to federal infrastructure and clean-energy spending.
EIP-backed Guardian Infrastructure Services acquires E2 to scale its utility engineering platform across North America.
E2 sits in the utility and infrastructure services layer - the specialists who translate ambitious policy and capital plans into engineered, inspected, compliant reality.
The macro backdrop is favorable. Utilities are pouring capital into grid resilience, wildfire hardening, undergrounding, and the connections needed for the energy transition. Federal infrastructure programs are running at historic scale. That demand is exactly what E2's service lines were built to serve, and it is why the firm's growth caught the attention of investors.
In June 2026, Energy Impact Partners announced that its utility-focused platform, Guardian Infrastructure Services, had acquired E2. The deal folds E2 into a larger, purpose-built utility infrastructure services platform supporting grid modernization, resiliency, and energy-transition programs across North America - a signal that E2's decades of unglamorous, essential work had built something durable enough to anchor a bigger play.
E2 is a multidisciplinary engineering and technical consulting firm providing project management, engineering and design, construction management and inspection, environmental services, and federal support to utilities and government agencies.
It was founded in 1988 by Hersh Saluja, initially offering water and wastewater consulting to municipal and federal clients.
In Emeryville, California, at 2100 Powell Street, with roughly 11 offices across the United States and 800+ professionals.
Investor-owned utilities such as PG&E, SoCalGas/Sempra, Xcel Energy, and Southern Company Gas, plus federal agencies including the U.S. Department of Energy.
Yes. In June 2026, EIP-backed Guardian Infrastructure Services acquired E2 to expand its scaled utility infrastructure services platform.