E & I Corporation
E & I Corporation, founded in 1975 and based in Westerville, Ohio, designs and manufactures heavy-duty process equipment — including bar screens, grit collectors, traveling water screens, flocculators, and skimmers — for municipal and industrial water and wastewater treatment across North America.
- Company typePrivate
- Founded1975
- HeadquartersWesterville, United States
- Headcount11–50
- GTM typeB2B
- OfferingHardware or Manufacturing
What E & I Corporation does
E & I Corporation, founded in 1975 and headquartered at 214 Hoff Road, Suite M, Westerville, Ohio, designs and manufactures heavy-duty process equipment for the municipal and industrial water and wastewater industries. The company operates as a Division of McNish LLC and sells a portfolio of 11 core equipment lines — catenary trash rakes, rectangular collectors, traveling water screens, catenary bar screens, EIMT multi-rake bar screens, passive intake water screens, pipe and helical skimmers, flocculators, bucket and swirl (vortex) grit collectors, and arc screens — built around mechanical engineering principles such as dual-strand heavy-duty steel catenary chain, wedge-wire passive intake screens with air-burst cleaning, and computer-designed flocculator configurations using fiberglass reinforced plastic and stainless-steel materials.
The company serves municipal water and wastewater utilities alongside industrial customers in pulp and paper, power generation, textiles, steel, refining, and chemicals, plus stormwater intake structures, with installations documented to deliver more than 25 years of continuous operation. Its go-to-market combines a regional authorized sales representative network covering most US states and Canadian provinces (Ontario) with factory-direct sales for Florida and international shipments. Revenue is generated through one-time equipment sales, replacement-parts sales, and repair/rehabilitation services; pricing is quote-based and project-specific rather than publicly disclosed. The company does not maintain a public app, API, or SDK, has no disclosed AI/ML capabilities, and operates without outside venture or private-equity ownership signals.
E & I Corporation firmographics
Firmographics- Name
- E & I Corporation
- Legal name
- E & I Corporation
- Website
- https://eandicorp.com
- Company type
- Private
- Founded year
- 1975
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- E & I Corporation, founded in 1975 and based in Westerville, Ohio, designs and manufactures heavy-duty process equipment — including bar screens, grit collectors, traveling water screens, flocculators, and skimmers — for municipal and industrial water and wastewater treatment across North America.
- Ownership category
- akta.pro rank
E & I Corporation industry classification
Industry- Product category
- Water and Wastewater Treatment Equipment
- NAICS
- Commercial and Service Industry Machinery Manufacturing (33331)
- SIC
- Special Industry Machinery (No Metalworking Machinery) (3550), Misc Industrial & Commercial Machinery & Equipment (3590)
- akta.pro primary industry
- Water & Wastewater Treatment Plant Equipment (Clarifiers, Aeration, Membrane Systems) (IMAHAEAJ)
- akta.pro secondary industry
- Municipal & Public Works Specialty Vehicles (Street Sweepers, Sewer Jetters) (IMAHAIAI)
Keywords
Where E & I Corporation is headquartered
LocationHeadquarters
- HQ city
- Westerville
- HQ country
- United States
- HQ region
- North America
Offices1 record
Markets served
E & I Corporation business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Supply Chain, Operations, Personnel, Marketing or Sales, Technology or R&D, Infrastructure
Revenue model
- Process Equipment Manufacturing & Sales: Design, manufacture, and sale of heavy-duty process equipment for municipal and industrial water and wastewater applications. Equipment includes trash rakes, bar screens, traveling water screens, rectangular collectors, grit collectors, flocculators, and skimmers.
- Parts & Components: Sale of genuine replacement parts for water and wastewater treatment equipment. Repair and rehabilitation team assists with identifying exact parts needed to keep systems running efficiently.
- Repair & Rehabilitation Services: Expert repair and rehabilitation services including quick and accurate estimates to reduce downtime and avoid service interruptions for existing equipment.
Go-to-market motion1 record
Distribution channels10 records
Marketing channels3 records
E & I Corporation product offering
Product offeringCore offering
E & I Corporation designs, manufactures, and sells heavy-duty process equipment for municipal and industrial water and wastewater treatment, including trash rakes, bar screens, traveling water screens, rectangular collectors, bucket and swirl grit collectors, flocculators, passive intake water screens, and pipe/helical skimmers. The company also provides genuine replacement parts and expert repair and rehabilitation services to keep customer systems running efficiently.
Product overview
E & I Corporation is a water and wastewater treatment equipment manufacturer founded in 1975, serving municipal and industrial markets across North America and internationally. The company produces a portfolio of 11 core equipment product lines including Catenary Trash Rakes, Rectangular Collectors, Traveling Water Screens, Catenary Bar Screens, Multi-Rake Bar Screens (EIMT Screens), Passive Intake Water Screens, Pipe & Helical Skimmers, Flocculators, Bucket Grit Collectors, Swirl (Vortex) Grit Collectors, and Arc Screens. These products address pretreatment screening, grit removal, flocculation, and skimming applications. The company also offers Parts & Repairs services to support equipment maintenance and rehabilitation. Equipment is engineered for durability and reliability in harsh environments, with material options including stainless steel, fiberglass reinforced plastics, and specialty alloys.
Differentiator
Problem solved
Functional benefit
Products and services
- Catenary Trash Rakes
Quantifiable outcome
- 25+ years of perfect performance records at installations like Westerville, Ohio
Companies that use E & I Corporation
Customer profileNamed customers10 records
Segments2 records
Ideal customer profiles2 records
E & I Corporation technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature5 records
E & I Corporation partnerships and signals
Strategic signalPartnerships
One partnership is on record.
- McNish LLCcoreE & I Corporation operates as a Division of McNish LLC. McNish LLC holds the copyright for the E&I Corp website content through 2026.
Scale indicators2 records
Recent moves6 records
Expansion highlights6 records
E & I Corporation competitors and assessment
Company assessmentDirect peers
- WesTech Engineering: WesTech provides water and wastewater treatment equipment and processes including headworks screening, grit removal, and clarification, positioning it as a direct competitor to E&I in the municipal pretreatment segment.
- Franklin Miller: Franklin Miller manufactures screening, grinding, and solids-handling equipment for wastewater and industrial applications, directly competing with E&I's bar screens and screening equipment offerings to municipal and industrial buyers.
- Smith & Loveless: Smith & Loveless manufactures wastewater treatment equipment and lift stations including screening and grit handling equipment, serving municipal and industrial customers similar to E&I's municipal and industrial water/wastewater segments.
- Headworks International: Headworks International is a specialist in headworks/bar screens and grit removal equipment for wastewater treatment plants, closely competing with E&I's catenary bar screens, multi-rake bar screens, and grit collector product lines in municipal and industrial markets.
- Lakeside Equipment Corporation: Lakeside manufactures water and wastewater treatment equipment for municipal and industrial markets, including bar screens, traveling water screens, skimmers, and grit removal systems — highly overlapping with E&I's core product portfolio.
- Parkson Corporation: Parkson designs and manufactures water and wastewater treatment equipment including bar screens, grit removal systems, and headworks equipment, directly overlapping with E&I's catenary bar screens, trash rakes, and grit collectors serving the same municipal and industrial customers.
- Enviro-Care: Enviro-Care specializes in fine bar screens, screenings handling, and grit/washing equipment for municipal wastewater plants, making it a direct specialist competitor to E&I's screening and grit collection equipment in the headworks segment.
- Huber Technology: Huber is a global manufacturer of municipal and industrial water/wastewater equipment including screens (step screens, bar screens), grit removal, and sludge handling, making it a direct head-to-head competitor with E&I in the screening and grit collection product categories.
Emerging players
- JWC Environmental (ALDRIDGE): JWC Environmental (now operating under ALDRIDGE) manufactures screens, grinders, and solids reduction equipment for wastewater treatment, positioning it as a direct competitor in screening equipment with strong focus on channel and in-pipe screens, partially overlapping with E&I's bar screen and trash rake offerings.
Broad incumbents
- Ovivo (Veolia Water Technologies): Ovivo, now part of Veolia, is a major global supplier of water and wastewater treatment equipment including screening, grit removal, and clarification systems, competing with E&I across the municipal water/wastewater equipment spectrum as a much broader incumbent.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks7 records
Key highlights7 records
Customer concentration
E & I Corporation social profiles
Digital presenceE & I Corporation financial estimates
Financial estimateRevenue estimate
Valuation estimate
E & I Corporation leadership team
Management profileNumber of profiles
E & I Corporation funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
E & I Corporation M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about E & I Corporation
What does E & I Corporation do?
E & I Corporation designs, manufactures, and sells heavy-duty process equipment for municipal and industrial water and wastewater treatment, including trash rakes, bar screens, traveling water screens, rectangular collectors, bucket and swirl grit collectors, flocculators, passive intake water screens, and pipe/helical skimmers. The company also provides genuine replacement parts and expert repair and rehabilitation services to keep customer systems running efficiently.
Is E & I Corporation a public or private company?
E & I Corporation is a private company. It is classified as corporate owned and is currently operating.
When was E & I Corporation founded?
E & I Corporation was founded in 1975. It employs 11 to 50 people.
Where is E & I Corporation based?
E & I Corporation is headquartered in Westerville, United States, in the North America region.
How does E & I Corporation make money?
Three revenue lines are on record. Process Equipment Manufacturing & Sales are the primary driver. The others are parts & Components and repair & Rehabilitation Services.
Who are E & I Corporation's main competitors?
Direct peers on record are WesTech Engineering, Franklin Miller, Smith & Loveless, Headworks International, Lakeside Equipment Corporation, Parkson Corporation, Enviro-Care and Huber Technology. JWC Environmental (ALDRIDGE) is listed as an emerging player. Ovivo (Veolia Water Technologies) is listed as a broad incumbent.
Does E & I Corporation have an API?
No public API is recorded for E & I Corporation.
What industry is E & I Corporation in?
E & I Corporation's product category is Water and Wastewater Treatment Equipment. Its primary akta.pro industry code is IMAHAEAJ, Water & Wastewater Treatment Plant Equipment (Clarifiers, Aeration, Membrane Systems), with a secondary code of IMAHAIAI, Municipal & Public Works Specialty Vehicles (Street Sweepers, Sewer Jetters). Its NAICS code is 33331 and its SIC code is 3550.