Today’s school districts and public service agencies are navigating historic workforce pressures — staff shortages, compliance complexity, rising costs, and increasing service demands.
ESI delivers flexible, customized workforce solutions designed to meet you where you are. Whether you need substitute coverage, specialized professionals, district-wide staffing oversight, or a way to retain retiring talent — ESI provides a smarter path forward.
Encore (formerly RetireRehire) enables eligible retirees to return to work as ESI employees while collecting their pension. This helps organizations retain experienced professionals and preserve institutional knowledge.
Best for: Education and public service agencies seeking access to experienced professionals.
SubSource is ESI’s substitute staffing solution, designed to increase fill rates and reduce the operational strain of managing substitute pools. ESI actively recruits and hires certified and classified substitutes.
Best for: Districts looking to stabilize substitute coverage and reduce the daily administrative burden on HR and school leaders.
InDemand is ESI’s full-time contracted staffing solution. When specialized, related services, or other high-impact roles are difficult to fill, ESI delivers pre-vetted, high-quality professionals — employed and supported by ESI directly.
Best for: Education and public service agencies needing reliable, high-quality professionals in specialized areas.
Connect is ESI’s Managed Service Provider (MSP) solution, designed to give districts centralized oversight of all contingent staffing. Instead of managing multiple staffing vendors, contracts, and systems, you gain one accountable partner overseeing your entire staffing ecosystem.
Best for: Districts seeking system-wide staffing oversight and cost transparency.
ESI is more than a staffing provider — we are a workforce partner dedicated to helping schools and public service agencies operate with confidence, continuity, and care.
Because when staffing is stable, students and communities thrive.
Each ESI program is designed to deliver measurable value independently. But when combined, they create a comprehensive workforce strategy.
 |  |  |  | |
|---|---|---|---|---|
| Encore | SubSource | InDemand | Connect | |
| Primary Purpose | Retain & rehire retirees to fill critical gaps | Substitute teacher & support staffing | Direct staffing for hard-to-fill & specialized roles | District-wide vendor management & workforce oversight |
| Best For | Maintaining continuity with experienced professionals | Daily classroom coverage & substitute stability | Specialized, therapy, or professional shortages | System-wide control, compliance & cost visibility |
| Employment Model | ESI is employer of record | ESI is employer of record | ESI is employer of record | Manages multiple vendors |
| Administrative Relief | Retiree employment logistics, hiring & onboarding, payroll, HR compliance & management | Recruiting, hiring & onboarding, payroll, HR compliance & management | Recruiting, hiring & onboarding, payroll, HR compliance & management | Vendor oversight, billing consolidation, compliance tracking |
| Strategic Impact | Retention of most experienced workers | Higher substitute fill rates | Improved quality & speed of placements | Full workforce visibility & accountability |
