James Posey & Associates | Engineering Your Vision

Mechanical & Electrical Consulting Engineers Since 1911

James Posey Associates is celebrating its 100th anniversary in 2011. To help commemorate our centennial, Chairman Emeritus Carl Hossfeld compiled a history of the firm’s first 100 years.

Carl served as President from 1981 through 2004. He retired in 2005 after 42 years of service but continues working with us on a consulting basis.

Here are Carl’s initial thoughts as he started work on the firm’s history:

It is rare for any company to survive, much less thrive for 100 years. This is especially true for a design firm started in the early 1900s, considering the past century brought us two world wars, the Great Depression, numerous recessions, and major evolutions in building technology.

We are often asked “What is the key to your success?” There is no single answer, but there are three guiding principles established by our founder, James Posey, that we follow to this day. They are to place the interest of our clients foremost, mentor staff and invest in their well-being, and most important, produce top quality work.

A Three Part History

You will find the firm’s history divided into three major periods. Please use these links to read along:

Founding and Early Years
Mid-Century
A New Century


James Senate Office Building in Annapolis, MD is a good example of JPA’s long history. We designed the MEP systems for the original 1938 building in the archival photo and replaced them 45 years later as part of an extensive modernization shown in the color photo.