Leadership 2017-06-20T15:23:45+00:00


Dan Jacobs

Senior Principal
Director of Sustainable Design

Dan is one of the two founding partners of A3C which celebrated its 30th anniversary in August of 2013. He is an advocate of building sustainable projects for the benefit of our clients, our community, and the planet. Dan has served on the Board Executive Committees of both the USGBC Detroit Regional Chapter and the Southeastern Michigan Sustainable Business Forum. He is a huge fan of Michigan sports, regularly attending hockey, basketball, and football games. While his friends might not call him a golfer or a basketball player, he does enjoy playing both sports. He has been married to his college sweetheart, Peg, for 40 years and they have four wonderful children, two daughter-in-laws, and one grandson, as well as three grand-dogs.

“I am a great believer in luck and I find the harder I work the more I have of it.” – Thomas Jefferson

“To be successful, you have to have your heart in your business and your business in your heart.” – Thomas Watson, Sr.

Jan Culbertson

Senior Principal

Jan has been with A3C since the early days of working in Dan’s “lower level.” She coordinates the local AIA+2030 professional continuing educations series and serves on the Ann Arbor 2030 District: Emerging District Committee. Growing up in Ann Arbor, Jan continues to work and serve in the town she loves through the Main Street Area Business Improvement Zone ‘MSABIZ’ – Landscaping Committee and Commercial Building Benchmarking & Disclosure Stakeholder Group. She enjoys kayaking and is shifting from hiking to biking to protect those hardworking knees. Jan and her husband, Carey, have joined with their eldest son in establishing Project Odakniwa, to support sustainable development in Mapuche communities located in southern Chile.

“Reality can be beaten with enough imagination.” – Mark Twain

“Never doubt that a small group of thoughtful, committed citizens can change the world. Indeed, it is the only thing that ever has.” – Margaret Meade.

Brian Winkler

Senior Principal

In addition to being A3C’s Operations Manager, Brian is also active with the Charter Township of Commerce, where he serves on the Planning Commission as Secretary, is an Executive Board member of the Downtown Development Authority, and assists with the Walled Lake/Commerce Township/Wixom Rails-To-Trails Council. He has also been active with the Southeast Michigan Chapter of IFMA, serving as the Volunteers Chairperson for the annual Chapter Golf Outing for the past 10 years. He has managed health care projects for 30 years, 25 of these years with A3C. He and his wife, Nelia, have 2 grown children and celebrated their 31st Wedding Anniversary in 2014. Brian enjoys golfing (albeit poorly), playing racquetball, and tennis.

“If you see a fork in the road, take it.” – Yogi Berra

“Too often we enjoy the comfort of opinion without the discomfort of thought.” – John F. Kennedy

Ron Lincoln


Ron has been with A3C for half of its history and one quarter of his. Why did he become an Architect, instead of a circus clown? “I enjoy the challenges of combining client expectations with regulatory restrictions, industry standards with technological advances, and sustainability with proven materials and methods to produce solutions that enhance the places where people live, work, and play. That, and I turned down an offer from Ringling Bros. Clown College.” His other creative outlets  are Halloween costume design and architectural gingerbread creations.

“God is in the details.” – Mies Van Der Rohe

“I may not have gone where I intended to go, but I think  I have ended up where I intended to be.” – Douglas Adams

Lissa Spitz


Although Lissa prefers not to mention the exact number of years she has worked in health care design, it’s certainly long enough to account for the greying hair.  She is grateful to have landed at A3C because of the great people, orientation toward service, and commitment to sustainable design. Her current volunteer efforts are focused on Climate Ride Midwest, to benefit the Ecology  Center. Lissa recently moved to Ann Arbor with her husband Michael and both children, where they are undertaking a sustainable remodel of their new-old home. She is thrilled to finally be close enough for bicycle commuting.

“Be humble for you are made of Earth. Be noble for you are made of stars.” – Serbian proverb

“If you don’t like what you’re doing, then don’t do it.” – Ray Bradbury