Alliumeng
Peabody, US · Founded 2021 · 6 known investors
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Allium manufactures stainless-clad rebar that meets the AASHTO M 329M standard, offered in a full size range (#3–#18) and ASTM A615 and A706 specifications. It supplies fabricated and delivered material to the construction and infrastructure market across North America.
Also known as Allium · Allium Engineering
Founders & leadership
Alliumeng was founded in 2021 by Steven Jepeal and Sam McAlpine.
Investors · 6
Reported raises · per SEC filings
Form D private placements$4M disclosed across 1 round · 2024
▶$4MraisedMar 2024 · 12 investors · Other TechnologyRule 506(b)
- Steven JepealExecutive Officer
- Sam McAlpineExecutive Officer
- Offering amount
- $4M
- Amount sold
- $4M
- First sale
- Feb 2024
- Incorporated
- Corporation, Delaware, 2021
- Federal exemptions
- 06b
Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.
Company profile
researched Aug 2026Allium Engineering is a US-based materials and manufacturing startup that develops a process for applying stainless steel cladding to steel construction materials, principally reinforcing bar (rebar). The company states that its cladding prevents steel corrosion, which it presents as a means of extending the service life of concrete structures by up to 100 years or more, at a cost it describes as a fraction of alternative corrosion-resistant solutions and with reduced maintenance and replacement expense. The company also frames its technology as reducing carbon emissions associated with infrastructure materials and as improving resilience to storms, freeze-thaw cycling, and coastal exposure.
The company presents itself as serving critical infrastructure and steel construction markets, and references past projects and case studies on its website.
Founding story
Allium Engineering was founded by two MIT Ph.D. graduates.
▸Full profile — market position, technology, go-to-market, geography
Market position
The company differentiates on a stainless steel cladding process that it says eliminates corrosion in rebar while costing a fraction of alternative corrosion-resistant options, alongside claimed reductions in carbon emissions and lifecycle maintenance costs.
Technology
The core technology is a process for producing stainless steel claddings on steel construction materials, applied to rebar so that the stainless outer layer prevents corrosion of the underlying carbon steel. The company positions the resulting product as corrosion-eliminating, lower-cost than alternative corrosion-resistant reinforcement, and lower in embodied carbon emissions.
Go-to-market
Critical infrastructure and steel construction projects that use reinforcing bar and are exposed to corrosive conditions such as coastal environments and freeze-thaw cycles.
Geography
The company describes itself as US-based.
Compiled by commissioned research from 1 cited public sources — announcements, filings, and press listed under research sources below.
Non-dilutive funding · 1 SBIR/STTR award
Federal grants — no equity taken| Agency | Phase | Year | Amount |
|---|---|---|---|
| National Science Foundation | Phase I | 2023 | $275K |
Source: SBIR.gov award data (U.S. Small Business Administration). SBIR/STTR awards are competitive federal R&D grants and contracts — non-dilutive capital alongside any venture rounds above.
▸Research sources · 1
primary sources listed
- Alliumengalliumeng.com · web
1 public sources were cited for this profile; the first-party ones are listed here.
Frequently asked questions
- What does Alliumeng do?
- Allium Engineering is a US startup making stainless-clad rebar designed to prevent corrosion and extend infrastructure lifespans.
- Who founded Alliumeng?
- Alliumeng was founded by Steven Jepeal, Sam McAlpine in 2021.
- Who are Alliumeng's investors?
- Alliumeng's investors include Aera VC, Alumni Ventures, Bay Bridge Ventures Climate, Castor Ventures (an Alumni Ventures Fund), Creative Destruction Lab (CDL), Propeller VC.
- How much funding has Alliumeng raised?
- Alliumeng has disclosed $4M raised across 1 round.
- Where is Alliumeng headquartered?
- Alliumeng is headquartered in Peabody, US.