Company lists · Data refreshed September 2026
Top 25 Substitute teacher staffing worldwide
RevenueBase identified 410 substitute teacher staffing worldwide as of September 2026 and tracks 51,954 professional contacts across them, including 3,270 with verified work emails and 12,054 with mobile numbers. The United Kingdom is the largest market and London the largest hub.
This list covers substitute teacher staffing worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 6, 2026. Country and city lists for substitute teacher staffing follow the table.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest substitute teacher staffing worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 10,421 contacts → | ||||
Strong evidence “As leaders in the education staffing space since ESS specializes in placing qualified staff in daily, long-term, and permanent K-12 school district positions, including substitute…” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 2 | 4,828 contacts → | ||||
Indirect evidence “Kelly Education is one of the country’s most trusted sources of education talent, serving thousands of schools and institutions and millions of students across the U.S.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 3 | 4,551 contacts → | ||||
Partial evidence “America’s #1 choice for educational staffing.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 4 | 4,394 contacts → | ||||
Partial evidence “Teaching Personnel is the UK’s leading education recruitment agency.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 5 | 1,769 contacts → | ||||
Indirect evidence “Scoot Education helps create exceptional experiences in education by thoughtfully placing the right educator, at the right place, at the right time.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 6 | 1,541 contacts → | ||||
Partial evidence “At Zen, we’re a certified B Corp transforming how schools and educators connect, because every student deserves consistent access to excellent teaching.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 7 | 1,436 contacts → | ||||
Partial evidence “TeacherActive is recognised as a leading education recruitment specialist, with a culture of success and a commitment to delivering excellent recruitment services to schools and…” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 8 | 1,313 contacts → | ||||
Partial evidence “ChildCare Careers is the largest staffing firm dedicated to the child care field.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 9 | 1,236 contacts → | ||||
Strong evidence “Swing Education connects high-quality substitute teachers with schools in need.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 10 | 1,235 contacts → | ||||
Indirect evidence “Protocol Education is a specialist provider of recruitment services to the education sector.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 11 | 1,094 contacts → | ||||
Strong evidence “Teachers On Call, a Kelly Education® company, is a substitute staffing service that hires licensed teachers, paraeducators, tutors, and early childhood education staff.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 12 | 1,003 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 13 | 952 contacts → | ||||
Indirect evidence “Our healthcare and educational professionals change lives every day, all over the country, simply by doing a job they love.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 14 | 939 contacts → | ||||
Strong evidence “Substitute Teacher Service, Inc.(STS) proudly serves as Pennsylvania's leading provider of substitute teachers, teacher aides, and support personnel.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 15 | 514 contacts → | ||||
Indirect evidence “CER Education Recruitment specialises in providing a comprehensive range of recruitment solutions and added value services to the education sector.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 16 | 480 contacts → | ||||
Partial evidence “Aspire People recruit the best teaching, and non-teaching professionals for exciting education jobs.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 17 | 474 contacts → | ||||
Indirect evidence “For over two decades, GSL has been working to actively improve the quality of education for young people across the UK.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 18 | 432 contacts → | ||||
Indirect evidence “Connex Education is a high quality, service-led education supply agency.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 19 | 387 contacts → | ||||
Partial evidence “Career Teachers, established in 2004, is a well-established and trusted education recruitment specialist, providing temporary and permanent job opportunities to teachers, teaching…” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 20 | 386 contacts → | ||||
Indirect evidence “Cross Country Education is educator-led, student-driven and solutions orientated.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 21 | 363 contacts → | ||||
Strong evidence “The Education Team provides fully qualified and pre-screened on-demand substitute teachers for grades K through 12.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 22 | 347 contacts → | ||||
Strong evidence “Renhill Group and Renhill HR On Demand -Renhill Group An educational substitute staffing firm that places substitute staff into school systems throughout mainly NW and NE Ohio.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 23 | 295 contacts → | ||||
Strong evidence “School Professionals is an educational staffing service whose sole focus is recruiting, credentialing, interviewing and providing highly qualified and screened substitute and…” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 24 | 273 contacts → | ||||
Partial evidence “We focus on our core services of substitute recruiting, human resources, scheduling and employment, so that schools may focus on core services of instruction, curriculum, student…” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 25 | 261 contacts → | ||||
Indirect evidence “Spur believes educators shouldn't be buried in paperwork, complicated systems, and costs–they should have more time and money for what matters: their students.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: substitute teacher staffing. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names substitute teacher staffing.
- Partial evidence
- Its own public description names part of substitute teacher staffing, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name substitute teacher staffing. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 410 substitute teacher staffing worldwide
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Substitute teacher staffing worldwide at a glance
As of Sep 6, 2026Companies by employee count
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among substitute teacher staffing, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- Coverage
- 3 countries, largest first: the United Kingdom, the United States, the Netherlands. Country and city lists for substitute teacher staffing are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “substitute teacher staffing”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names substitute teacher staffing), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among substitute teacher staffing, and records with no verified work email.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every listed company carries at least one verified work email, 3,270 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 6, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Substitute teacher staffing by location
4 lists · largest firstEvery Substitute teacher staffing list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Substitute teacher staffing based in the United Kingdom207
- Substitute teacher staffing based in the United States161
- Substitute teacher staffing based in the Netherlands42
Cities
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names substitute teacher staffing, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many substitute teacher staffing are there worldwide?
RevenueBase identified 410 substitute teacher staffing worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
ESS, headquartered in Knoxville, tops this list with the largest team on record.
Which country has the most substitute teacher staffing?
The United Kingdom leads with 207 companies, followed by the United States (161) and the Netherlands (42). Every substitute teacher staffing list by country and city is linked on this page.
Which city has the most substitute teacher staffing?
London leads with 42 headquartered companies, followed by Birmingham (10) and Manchester (10).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 3,270 verified decision-maker contacts tracked across these 410 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 6, 2026.
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About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.