Our History

In 2015, PFS Corporation and Timberco Inc. dba TECO merged to form PFS Corporation dba PFS TECO. The two companies each have a long history in the building industry, and their merger into one employee-owned entity takes full advantage of the expertise and depth in personnel a long history brings.


The National Lumber Manufacturing Association, now the American Forest and Paper Association, determined that information on the strength and physical properties of wooden timbers was necessary to promote the use of structural timbers in the United States. To accomplish this goal, Timber Engineering Company, known as TECO, was formed to research and promote the proper use of structural wood products. More information on TECO’s beginning can be found on our TECO History page.


TECO purchased the rights to the “split-ring connector” from a German manufacturer. These connectors allowed the expanded use of structural timbers and forever linked the TECO name with split-ring connectors (since the late 1980s TECO is no longer manufacturing or selling wood-related fasteners or connectors).


TECO's laboratory was the largest private wood products laboratory in the United States. A popular internship program meant many of the United States wood manufacturers had someone from the TECO family within their staff.


TECO provided a full-time technician to conduct quality control activities at the Willamette Industries Plywood plant in Lebanon, Oregon. Thus, TECO's Technician-in-the-Mill program was born.


PFS was chartered as Plywood Fabricator Service, a nonprofit quality control agency affiliated with the American Plywood Association.


TECO built a laboratory in Eugene, Oregon to support its west-coast customer base.


TECO was sold to members of its management staff and its headquarters was moved to Chevy Chase, Maryland.


A TECO field office was established in Shreveport, Louisiana to support the growing customer base in the southeast.


The PFS name was changed to Product Fabrication Service to reflect its expanded scope in the plan review and inspection services for the manufactured housing industry, and management established new headquarters in Madison, Wisconsin.


The Internal Revenue Service determined that PFS was no longer a nonprofit, which resulted in the creation of PFS Corporation.


TECO was purchased by DESCO, a financial holding company, and split into two divisions, the Fastener and Connector Division and a Certification Division.


TECO's Fastener and Connector Division was sold to Cleveland Steel. The Certification Division was sold to Ed Starostovic, who at the time was the owner of PFS Corporation. Both PFS Corporation and TECO were run as separate companies yet shared some of their management and support staff.


PFS Corporation became an employee-owned company. TECO was maintained as a separate entity by Ed Starostovic.


PFS moved it headquarters to Cottage Grove, Wisconsin in a newly built office with 20,000 square foot testing facility.


TECO is purchased from Starostovic by Steve Winistorfer, then TECO's President, who had been with TECO since 1998.


PFS Corporation and Timberco Inc. dba TECO merged to form PFS Corporation dba PFS TECO.


PFS TECO's Oregon laboratory moved from the location in South Eugene it had occupied since the mid-1960s to a newly-constructed facility in nearby Springfield.