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OMNIA Partners vs. E&I Cooperative Services: Which Should a University Use?

The classic higher-ed procurement question: your supplier is on an OMNIA Partners contract and an E&I contract — which do you use? Here's how the largest generalist and the education specialist compare.

Last reviewed: August 2026

It's one of the most common questions in campus purchasing: the vendor you want is on both an OMNIA Partners contract and an E&I contract — so how do you decide? The two cooperatives sit at opposite ends of a useful spectrum. OMNIA is the largest generalist; E&I is the education specialist. Which wins depends entirely on what you're buying.

Short answer: for campus-specific categories (lab, library, furniture), start with E&I — it's built for education. For broad or unusual categories, OMNIA's portfolio is wider. When the same supplier is on both, compare pricing and scope directly; there's no universal winner.

OMNIA Partners vs. E&I at a glance

OMNIA Partners compared with E&I Cooperative Services
	OMNIA Partners	E&I Cooperative Services
What it is	The largest U.S. cooperative; a private aggregator	Member-owned, non-profit, education-only
Who it serves	Public sector, education, and private sector	Education only — higher ed, K-12, research
Portfolio	Broadest overall; strong in general categories	Focused and deep in campus categories
Strongest categories	Facilities, MRO, technology, office	Scientific & lab, library, campus furniture, IT
Governance	Operated as a private cooperative	Owned and governed by its education members
Cost to join	Free registration	Free, member-owned

Choose E&I when…

You're buying something distinctly higher-ed — lab equipment, library materials, residence-hall or classroom furniture.
You value contracts shaped around education procurement rules and academic governance.
You want a cooperative whose incentives align with institutions because members own it.

Choose OMNIA Partners when…

Your purchase is broad, general, or outside typical campus categories.
You want the widest set of supplier options to compare.
The supplier's OMNIA contract offers better scope or pricing for your specific need.

The bottom line

When a supplier is on both, the only way to know which is better for that purchase is to compare the two contracts directly — and that comparison is the tedious part, since each cooperative has its own portal. Understory puts E&I and OMNIA Partners contracts in one search so you can line them up in seconds. For the full picture including Sourcewell, see the three-way comparison.

Frequently asked questions

If a supplier is on both OMNIA and E&I, which contract should I use?

Compare them directly — the same supplier often has different pricing, terms, and scope on each cooperative. For education-specific categories, E&I is frequently tailored to campus needs; for broad categories, OMNIA may have wider scope. There is no universal winner, so check both for that supplier.

What is the difference between OMNIA Partners and E&I?

E&I Cooperative Services is a member-owned, non-profit cooperative built exclusively for education. OMNIA Partners is a private, for-profit-operated cooperative — the largest in the U.S. — serving public and private sectors broadly. E&I is the specialist; OMNIA is the generalist.

Is E&I better than OMNIA for higher education?

For distinctly higher-ed categories — scientific and lab, library, campus furniture — E&I is often the better fit because it is designed around education procurement. For broad or unusual purchases, OMNIA’s larger portfolio may have the better contract. Most universities use both.

Do OMNIA and E&I cost anything to join?

No. Both are free for eligible buyers with no purchase obligation. They are funded by administrative fees that awarded suppliers pay when their contracts are used.