“A true leader has the confidence to stand alone, the courage to make tough decisions, and the compassion to listen to the needs of others. He does not set out to be a leader, but becomes one by the equality of his actions and the integrity of his heart” – Douglas MacArthur.

Our Heritage

Oak Line Solutions Group was founded on a heritage of government service and support to government personnel. The Oak Line name comes from the Oak Tree group of the French Resistance. During World War II, Ted Peterson (Uncle of Oak Line founder Zach Elmer) was shot down over France and rescued by the Oak Tree Resistance group. Additionally, both founders served the people of the United States through careers either in the U.S Army or in the Intelligence Community. Based on this heritage, we understand the importance of partners who facilitate mission success. We value our partners who continue to serve in the U.S. Government and dedicate our efforts to ensuring their success.


At Oak Line Solutions, we continue the legacy of the Oaktree Resistance group by providing support to U.S. Government organizations, helping fulfill their missions. While Oak Line Solutions is made up of incredible individuals, our strength lies in our determined and consistent efforts to help our customers accomplish their missions. Our specialty is helping our customers simplify their most complex problems and find reasonable solutions.




Mission First – Execution matters. We make it our mission to accomplish yours. 

Do It Right – We hold ourselves to the highest standard—any job worth doing must be done correctly.

Watch Your Buddy’s Back – We take care of each other. We watch out for our customers and our co-workers.

Own It – we never pass the buck. If we see something that needs to be fixed, we fix it.

Stay Humble – We work with some of the most incredible people in the world—they are even more impressive because they don’t flaunt it.



Randal Wimmer, Government Contracting Academy

Geoff Dietrich

Founder and President

Geoff’s family legacy of government services started with building bombs in WWI, WWII and the Korean War and continued through family service in Vietnam. After graduating from the United States Military Academy at West Point, Geoff served in the U.S. Army infantry and deployed in support of Operation Enduring Freedom and of Operation Iraqi Freedom. Since leaving the Army, Geoff built several successful businesses serving clients and investors in their professional, legal, and tax needs. Geoff co-founded Oak Line with the desire to continue providing support to the U.S. Government. Geoff also spends time working with his local community of veterans, helping them connect with support resources and find fulfilling employment upon leaving government service.

Randal Wimmer, Government Contracting Academy

Zach Elmer Bio

Founder and CEO

Zach grew up hearing stories from his Uncle Ted of his service as the Pilot and Captain of a B-17 crew during WWII and from another uncle who served as a pilot of a C-130 during Vietnam. Zach began his own government career as an Operations Officer at the CIA and later served as a Special Agent for the FBI. Outside of government service, Zach has built and led finance teams, providing financial information and analysis which helped companies grow.  While Zach enjoyed working in the private sector, he missed mission-focused work and co-founded Oak Line to support the men and women who continue to serve the U.S Government and to further the mission of the U.S. Government.

Ted Peterson’s Story

Early in World War II, Britain established MI9, an intelligence organization tasked with helping downed Allied pilots and Prisoners of War evade or escape capture from the Germans occupying the continent. On March 20, 1943, MI9 parachuted two operatives into France onto the Brest Peninsula of France to establish a resistance group helping downed Allied pilots to escape back to Britain and the Oaktree Line of the French resistance was formed.

In late May 1943, Ted Peterson and his crew of B-17 bomber 42-29878 “Lady Godiva” were making their first combat run—it was a raid on the German submarine pens of St. Nazaire, France. After dropping their bombs on the target, the “Lady Godiva” was damaged by anti-aircraft fire, so the crew bailed out with all landing safely on the ground near Plourhan and Saint-Quay Portrieux. Most of the crew was immediately captured, but miraculously, Ted landed in a field of an Oaktree Line operative, who helped him evade capture and escape France. Cut off from the U.S. Army Air Corps, Ted’s mission changed from executing a successful bombing run to escaping form occupied France. The men and women of the Oak Line Resistance group helped Ted accomplish his mission. He eventually returned to England, where he trained Allied pilots how to evade capture and interact with resistance personnel in occupied territories.


Oak Line co-founder Zach Elmer grew up fascinated by the stories he heard from Ted about his evasion and escape from occupied France. Zach was most impressed that common men and women made up the Oaktree Line resistance and in their combined efforts to save Ted and other downed Allied pilots.  These seemingly small efforts made by ordinary people resulted in impressive feats of service to the Allies, which helped win the war. Today, Oak Line Solutions Group continues the legacy begun by the Oak Tree Line of the French Resistance. We continue to partner with government organization and facilitate their missions. Our strength lies in our combined efforts of our extraordinary people to get the job done.

Find more details of Ted Peterson’s evasion and escape from France here.