The primary focus areas of our company encompass structural engineering, structural design, industrial architecture, and facilities mechanical and electrical power engineering and design, making them the predominant service offerings. The majority of our project assignments are executed in our two offices situated in Holland and Sidney, Ohio. In addition, we collaborate with general contractors and fabricators by delivering comprehensive engineering and design services.  We are grateful that over eighty-five percent of our projects come from repeat business with existing clients.

Our objective is to offer quality engineering services at reasonable and fair compensation, while being able to offer competitive salaries and wages to our employees. With a track record spanning several decades, we’ve established strong relationships with numerous clients. At Sponseller, we acknowledge the central role of great personnel coupled with advanced analysis and design software in coming up with effective solutions to your diverse needs.  

Our team of engineers and designers desires to communicate with clients from project inception to completion. We seek to identify and deflect difficult problems that may arise.  We aim to assist with improving operations for the next products or better the current production processes.

What distinguishes us is our experience, focus on client needs, and responsiveness. Our employees enjoy long-lasting careers thanks to our friendly work environment, competitive salaries, extensive benefits, regularly updated computer workstations, and software. We value and seek out new hires based on their education and experience.  Often times we can supplement and expand our staff with new employees from the University of Toledo’s co-op program and then offer them full-time employment once they graduate.

 A short history of Sponseller Group

In 1973, Harold Sponseller departed from his role at Owens-Illinois in research and development to pursue new opportunities. He ventured into the drafting work, eventually finding enough projects to match his previous income of approximately $27,500 annually. Balancing looking for work during the day with drafting projects in his basement at night or the following day.  Harold first office was located on Dorr Street near the University of Toledo.  This space was just large enough for a team of five individuals.  Among the initial hires were his son, Mark and a high school friend. These tasks ranged from supplementing the mechanical drafting needs of local manufacturers to creating graphical air brushed illustrations for Dana Corporation’s transmission catalogues.

The company later expanded to a second floor office at Byrne and Hill. Clients often requested on-site assistance, leading to the employment of seven individuals on-site at Midland-Ross Surface Combustion and thirteen outsourced to Owens-Corning Fiberglas in downtown Toledo. Over time, Harold diversified services to include structural engineering, structural design and detailing. Notable initial projects included the substantial structural steel drafting for McNally Pittsburg to be installed in China.

Eventually we were able to obtain work from General Motors in Defiance, and the structural group flourished. With the addition of capable structural engineers, steel designers, and detailers. The journey continued with the establishment of new locations first at 1446 S. Reynolds Road, Maumee, OH and then to our current location at 1600 Timberwolf Drive in Holland, OH.  A second office is located at 1516 Target Drive in Sidney, Ohio to benefit Honda of America, Emerson Climate Technologies, Clarios, and others.

Our expansion was fueled by a commitment to excellent service at competitive rates. Harold’s approach was grounded in developing ideas from scratch, covering all aspects from finding work to managing invoicing, payroll, and benefits. By focusing on clients within a one to two hour drive of Toledo, we strive to create a family friendly environment for our employees allowing them most times to be home at night. 

Mission Statement

We aim to offer manufacturers, fabricators, and contractors top-tier engineering and design services. Our commitment extends beyond delivering competent engineering work.  We prioritize providing meaningful employment projects and competitive benefits to our dedicated staff and their families. We try to offer competitive compensation that matches or exceeds salaries at other area engineering firms, thus fostering a rewarding and sustainable professional environment.

Quality Objective

To meet client expectations on accuracy, content, and delivery, we take responsibility to resolve any complications that may arise.

Safety

Our people are trained with all the required safety training including first aid, lockout/tagout, fall protection, lift training, confined space, AED, CPR, and mine safety.

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Values

• Integrity & Honesty – We stand by our commitments and take responsibility for any mistakes or oversights.
• Safety First – We prioritize the well-being of our team members and yours, whether in our office or on-site.
• Respect – We respect everyone from clients and employees to subcontractors. 
• Attention to Detail – We ensure precision and timeliness in delivering accurate drawings.
• Leadership – Strive to be a leader at work, home, and in our community.
• Commitment – Dedicated to the success of our clients and employees.
• Competency – Our team comprises of qualified professionals with extensive experience.
• Teamwork & Flexibility – Collaboration is key, and we always strive to find solutions to challenges by being flexible and adaptable.
• Financial Strength – With five decades of operation, our company has a solid foundation for sustained success.
• Professionalism – Maintaining a professional demeanor with clients, employees, and subcontractors.  

Community Involvement

Sponseller Group supports the community through WISE – Women in Science and Engineering, WGTE public television, Cast Metal Association, Boy Scouts of America, University of Toledo car competitions, Whiteford High School Robotics Team, United Way, MS Foundation, and other organizations.