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ESS Alternatives: 6 Options for School Districts in 2026

Six alternatives to ESS for substitute and school staffing — what each one is, who employs the staff, what it costs the district, and which fits a district that wants to keep its own agencies.

Robert Flom, Founder of FullbenchOctober 1, 2026 · 5 min read

ESS (founded in 2000 in New Jersey, majority-owned by The Vistria Group since 2022) is one of the largest fully managed substitute programs in the country, with more than 1,200 partner districts by its own count. Its model is complete outsourcing: ESS becomes the employer of the district's substitute pool. That works for some districts. For others — especially districts that also depend on agencies for special education, related services, nursing and paraprofessionals — it is the wrong shape. Here are the six alternatives districts compare most often.

Why districts look for an ESS alternative

The reasons show up in public board records rather than marketing pages:

• Exclusivity. A publicly posted contract (Council Rock School District, Pennsylvania, 2022–24) names ESS "the exclusive contract provider of Substitute Staff" to the district.
• Markup and escalator. The same contract shows a $150.00 daily substitute billed at $194.25 — about 29.5% — with an annual escalator of 3% or CPI, whichever is greater.
• Fees for hiring your own people. The contract obligates the district to pay ESS the exhibit markup if it uses ESS substitutes directly for covered services.
• One bench. When one company employs the whole pool, its recruiting results are your fill results.

1. Fullbench — every agency you use, run as one program

Fullbench is a K-12 managed staffing program. Instead of replacing your agencies with one employer, it runs all of them for you: one contract, one invoice, one system of record and one point of contact.

• Every approved agency receives each opening at the same recorded instant, so the whole network's bench works every seat at once.
• No start date can be set while a required document is missing, unreviewed or expired.
• No program fee to the district, no annual escalator, no rate formula. Agencies compete under a maximum bill rate your office sets on every posting.
• Hiring a worker onto your own staff is free past the threshold in the agreement, and that exhibit is handed to you at the first meeting.
• Exclusive, preferred or non-exclusive is your district's selection in the agreement.

Choose it if you want the coordination off your desk and the competition between agencies working for you. Fullbench vs. ESS, line by line.

2. Kelly Education — another single national employer

Kelly Education describes itself as the nation's largest provider of education talent, serving more than 1,000 districts, and employs the substitute workforce itself. Pricing is a negotiated markup on pay — for example 27.5% in a 2023 Florida district, per its board record.

Choose it if you want to swap one employer for another of similar scale. Fullbench vs. Kelly Education.

3. Q360 — an education MSP funded by agencies

Q360 Workforce Solutions describes itself as a free "Open MSP" for education. It is part of Quantum Education Professionals, and its site markets "priority access" to Quantum's own professionals.

Choose it if an operator with an affiliated supplier fits your procurement policy; ask what record proves every agency sees each opening at the same moment. Fullbench vs. Q360.

4. Sunburst Workforce Advisors — cross-sector MSP with Sourcewell access

Sunburst, launched by Amergis in 2022, manages vendors across education, healthcare and government and can be purchased through Amergis's Sourcewell cooperative contract.

Choose it if a cooperative purchasing vehicle outweighs an education-only operator. Fullbench vs. Sunburst.

5. BlazerWorks — education-only MSP

BlazerWorks describes itself as an education-only MSP with its own platform consolidating timesheets, invoices and credentialing for districts.

Choose it if you want an education MSP and will compare its release and credential rules against Fullbench's side by side.

6. Run the agencies yourself on absence-management software

Many districts keep several substitute agencies and coordinate them in Frontline, Red Rover or SmartFind. The software fills absences; the coordination — chasing agencies, checking files, reconciling invoices — stays with your staff.

Choose it if you have an office with time to run a multi-agency program by hand.

ESS alternatives compared

How to switch without a gap in coverage

1. Read your current agreement's exit terms — notice period, transition obligations and any fee for hiring substitutes directly.
2. List the agencies you already trust and the roles each covers; a multi-agency program brings them in under their own contracts.
3. Start with one category — substitutes, paraprofessionals or related services — and run it alongside the incumbent until the record shows coverage.
4. Get the conversion and exclusivity exhibits in writing before you commit to anything new.