Founded by Jay and Mariann Godwin, STS was built on a simple but powerful mission: provide reliable substitute staffing solutions while creating meaningful employment opportunities within local communities. Today, that vision remains as strong as ever. The company recruits, hires, trains and
manages thousands of substitute professionals, including teachers, paraprofessionals, clerical staff, custodians, food service workers, nurses and other educational support personnel.
At the heart of STS is a philosophy that every school day matters. By connecting qualified, caring professionals with schools in need, the company helps educators feel supported, students remain engaged and school districts stay focused on what they do best—educating children.
“There is no greater reward than knowing our work directly impacts students,” the STS team shared.
“Every substitute we place helps ensure learning continues, even when a classroom teacher or staff member is away.” Beyond serving schools, the company also enjoys helping people find flexible, rewarding employment that allows them to make a meaningful difference in their own communities.
No two days at STS are ever the same. One day, the team may be helping someone prepare for their very first substitute assignment; the next, they could be celebrating a long-term substitute who has become a beloved member of a school community.
Recognizing exceptional employees is also an important part of the company’s culture through initiatives like the Substitute of the Month and Substitute Teacher of the Year programs, which honor individuals who go above and beyond for students and schools.
As a family-owned business, STS believes relationships are just as important as results. The experienced management team brings decades of expertise in substitute staffing, human resources, recruiting, customer service and education. Together, they have built lasting partnerships with school districts, colleges, employees and community organizations throughout Pennsylvania.
Looking ahead, STS remains committed to strengthening schools by recruiting caring, dependable individuals who want to make a difference. Whether you’re a retired educator, recent college graduate, career changer, or someone simply seeking flexible work with purpose, there is an opportunity to support students and serve your local community.
Each day, STS helps fill thousands of substitute assignments across Pennsylvania, ensuring classrooms remain staffed and learning never misses a beat. For the team at STS, supporting education isn’t simply a business—it’s a lifelong commitment to students, schools and the communities they proudly serve.
Publisher’s Note: As the Sponsor of our monthly “Excellent Educator,” I am pleased to share more about Substitute Teaching Service (STS), a family-owned and operated Delaware County business that has been serving our community’s schools for more than 30 years. STS partners closely with local school districts to help meet their staffing needs while providing rewarding employment opportunities for educational professionals. Whether they’re a recent college graduate, an experienced educator seeking a career change or a certified retiree looking to remain active in education, STS offers flexible and meaningful opportunities to make a difference in the classroom. For more than three decades, Substitute Teacher Service, Inc. (STS) has quietly played an essential role in keeping Pennsylvania classrooms running smoothly. Since 1994, the family-owned and operated company has partnered with more than 80 school districts across the Commonwealth, ensuring students continue learning even when teachers or support staff are absent.
