Insights

Substitute Demand Sub Teacher Source specializes in connecting substitute teachers with K-12 schools, indicating a stable recurring demand for staffing solutions across public, private, and charter segments which can be leveraged for long-term contracts or retainer-based services.

Tech-Driven Ops The company boasts a modern absence management system and a tech stack including Azure Monitor, HubSpot Content Hub, Cloudflare Bot Management and Google Tag Manager, presenting opportunities to position STS as a scalable partner for districts prioritizing digitized staffing processes and data analytics.

Midmarket Scale With 201-500 employees and annual revenue in the 50 to 100 million range, STS sits between smaller boutique agencies and large global staffing firms, suggesting potential for tiered service offerings such as managed services, client dashboards, and premium SLAs for district partners.

Competitive Positioning Comparisons with peers like Randstad, Adecco and Robert Half imply opportunities to differentiate on education-specific expertise, faster fill times, and specialized absence management, appealing to districts seeking sector-focused staffing vendors.

Growth Potential Funding and revenue signals combined with a focus on loyalty and execution hint at opportunities to expand into additional education segments, extra-curricular staffing, or long-term substitute pools, as well as potential partnerships with school consortia and charter networks.

Sub Teacher Source Tech Stack

Sub Teacher Source uses 8 technology products and services including HubSpot Analytics, Amazon Web Services, Cloudflare, and more. Explore Sub Teacher Source's tech stack below.

Sub Teacher Source's Email Address Formats

Sub Teacher Source uses at least 2 format(s):
Sub Teacher Source Email FormatsExamplePercentage
First@isscompanies.comJohn@isscompanies.com
87%
FLast@isscompanies.comJDoe@isscompanies.com
13%

Frequently Asked Questions

What is Sub Teacher Source's phone number?

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You can contact Sub Teacher Source's main corporate office by phone at . For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is Sub Teacher Source's official website and social media links?

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Sub Teacher Source's official website is subteachersource.com and has social profiles on LinkedIn.

How much revenue does Sub Teacher Source generate?

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As of August 2026, Sub Teacher Source's annual revenue is estimated to be $50M - $100M.

What is Sub Teacher Source's NAICS code?

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Sub Teacher Source's NAICS code is 92311 - Administration of Education Programs.

How many employees does Sub Teacher Source have currently?

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As of August 2026, Sub Teacher Source has approximately 277 employees across 2 continents, including North AmericaAsia. Key team members include Substitute Lead Teacher: L. M.Temporary Substitute Teacher: E. T.Substitute Teacher: J. C.. Explore Sub Teacher Source's employee directory with LeadIQ.

What industry does Sub Teacher Source belong to?

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Sub Teacher Source operates in the Education Administration Programs industry.

What technology does Sub Teacher Source use?

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Sub Teacher Source's tech stack includes HubSpot AnalyticsAmazon Web ServicesCloudflareHubSpot Content HubMicrosoft 365parallax.jsMicrosoft AzureAnimate.css.

What is Sub Teacher Source's email format?

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Sub Teacher Source's email format typically follows the pattern of First@isscompanies.com. Find more Sub Teacher Source email formats with LeadIQ.

When was Sub Teacher Source founded?

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Sub Teacher Source was founded in 2016.
Sub Teacher Source logo

Sub Teacher Source

Education Administration ProgramsMichigan, United States201-500 Employees

Sub Teacher Source is a mid-sized educational staffing firm that connects substitute teachers with K-12 schools in need, including public, private, and charter institutions. It operates in the education administration sector and relies on an absence management system to streamline the process of replacing regular teachers when absences occur. The company is based in Southfield, Michigan. 

Its customers are schools seeking reliable substitute coverage to maintain instructional continuity. By facilitating connections between schools and substitute teachers, Sub Teacher Source addresses staffing gaps and absence management needs within the educational landscape. More information is available on its website.

Section iconCompany Overview

Phone number
NAICS Code
92311 - Administration of Education Programs
Founded
2016
Employees
201-500

Section iconFunding & Financials

  • $50M - $100M

    Sub Teacher Source's revenue is estimated to be in the range of $50M - $100M

Section iconFunding & Financials

  • $50M - $100M

    Sub Teacher Source's revenue is estimated to be in the range of $50M - $100M

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