Company

Our Mission

At NWOSS, our mission is simple: CUSTOMERS FIRST, ALWAYS. That is why we are committed to providing cutting-edge security solutions tailored to our customers’ needs while also fostering a supportive and empowering environment for our employees to thrive and deliver exceptional service and support.

Our Vision

At Northwestern Ohio Security Systems, our vision is to pioneer a safer tomorrow by delivering unparalleled security solutions and fostering peace of mind within our communities. We aspire to be the premier provider of innovative security technologies, setting the benchmark for excellence in safeguarding homes, businesses, and institutions across the region. Through our unwavering commitment to reliability, integrity, and customer satisfaction, we strive to create a world where safety is the highest priority, empowering individuals and organizations to thrive in a secure environment. Our vision propels us to continuously evolve, adapt, and innovate, ensuring that NWOSS remains at the forefront of the security industry while safeguarding the well-being of those we serve.

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Who We Are

Northwestern Ohio Security Systems, Inc. (aka NWOSS) was established in Lima, Ohio in 1981 by brothers-in-law Trell Yocum and Jim Kostelac. We own and operate a Central Station in northwest Ohio to provide our customers with professional, local alarm monitoring services.

NWOSS has built a culture of excellence in our industry. As a veteran-owned, family-operated, local security integrator, we strive to provide superior protection to families and businesses. We demonstrate the value of security through affordable prices for industry-leading technology solutions and exceptional service.

Our hope is to create environments where all people can feel safe. We do this by offering dependable, reliable products that utilize the latest technology. Our team of experts consistently vets new vendors and tests their equipment to ensure we only offer quality products we would use to protect our own families. Furthermore, NWOSS invests in our employees through dedicated training and certification programs. This allows us to offer top-notch support from a dedicated team who genuinely cares about the safety of each and every customer.

Local Ohio Team Icon

Ohio-Based

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Family-Operated

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Veteran Owned

“It’s a matter of trust. For over 30 years, generations of families and businesses placed their trust in Northwestern Ohio Security Systems, Inc. to provide security. We put your interests and needs first. We then apply the best products on the market to give you the most cost-effective solution. Many of our employees have been doing this for over 20 years! You see the same people and know your security is in very experienced hands. Our service technicians are factory trained and network certified, with most having over 10 years of experience. Their goal is to service your needs quickly and do the job right the first time. Experience counts and saves you money! Your satisfaction is 100% guaranteed.”

- Jim Kostelac, Owner

Quality Products | Experienced Team | Top-Rated Customer Service

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NWOSS Opens Doors

We began operations out of 543 W. Elm Street in Lima.

We began operations out of 543 W. Elm Street in Lima.

The Men Who Started It All

Owners Jim Kostelac & Trell Yocum

Owners Jim Kostelac & Trell Yocum

Small Beginnings

Our first technician and company vehicle

Our first technician and company vehicle

First Advertisement

Our very first brochure advertising our products and services.

Our very first brochure advertising our products and services.

Monitoring Station

Our original Monitoring Station was equipped with the latest technology of the times.

Our original Monitoring Station was equipped with the latest technology of the times.

NWOSS Expands

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With the addition of the building next door at 549 W. Elm Street, we doubled our office space.

Training Session

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Gary Neubert, Chad Sidey, Sam Bonifas

With so many technicians, we implemented mass training sessions.

10 Year Anniversary

Steve Spahr, Jim Kostelac, Trell Yocum
Steve Spahr, Jim Kostelac, Trell Yocum

NWOSS celebrates 10 years of serving the Lima community.

First Billboard

Our first ever billboard advertisement.

Our first ever billboard advertisement.

NWOSS Moves

We moved to our current location, 121 E. High Street in Lima.

We moved to our current location, 121 E. High Street in Lima.

NWOSS Opens Branch Office

We opened our Columbus branch location at 1250 Chambers Rd.

We opened our Columbus branch location at 1250 Chambers Rd.

Exponential Growth

Lynn Tippie, Mike Pulfer, Denny Crouse, Sam Bonifas, Chad Sidey, Jason Roberts, John McNamara
Lynn Tippie, Mike Pulfer, Denny Crouse, Sam Bonifas, Chad Sidey, Jason Roberts, John McNamara

We had grown exponentially, as shown in the technician training session.

Meet the Fleet

We had over 20 company vehicles, yet another nod to our exponential growth.

We had over 20 company vehicles, yet another nod to our exponential growth.

Columbus Branch Moves

Our Columbus branch moves to 3211 Hilliard-Rome Rd.

Our Columbus branch moves to 3211 Hilliard-Rome Rd.

30 Year Anniversary

Linda Fisher, Melinda Bankston, Sharon Snyder, Tony Smith, Diane Poe
Linda Fisher, Melinda Bankston, Sharon Snyder, Tony Smith, Diane Poe

A few employees enjoy the lovely weather as they celebrate the company's 30th Anniversary.

Open House

Steve Spahr, Dan Protsman, John Kostelac, Mike Pulfer, Dustin Beilke
Steve Spahr, Dan Protsman, John Kostelac, Mike Pulfer, Dustin Beilke

Our sales team gear up for our first Customer Appreciation Open House.

Rich History

To celebrate all our wonderful memories together, our staff created this collage of images over the last three decades.

To celebrate all our wonderful memories together, our staff created this collage of images over the last three decades.

NWOSS Expands to Cleveland

NWOSS Medina

Medina Office Plaza Location

Columbus Office Moves

NWOSS Columbus

Columbus Office Location

Loss of a Leader

NWOSS Co-Founder Trell Yocum

Trell Yocum, our beloved leader and NWOSS co-founder, passed away in February 2020. Trell will be greatly missed, but his imprint on our company will be a legacy that will remain for many years to come.

Celebrating 40 Years!

Northwestern Ohio Security Systems 40th Anniversary Celebration

We celebrated 40-years in business with a party in our parking lot!

Cleveland Office Moves

NWOSS Cleveland Office

To to our expanding business, our Cleveland Office moved to a larger space. The new location makes it more convenient to service our customers in northeast Ohio.

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