A Minnesota native, William Bongard grew up traveling the world as the son of a professional foreign service worker. His entire 37-year career in has been spent at the law firm of SiebenCarey representing Minnesotans when they experience accidental injury.

William is a Board Certified Civil Trial Advocate by the National Board of Trial Advocacy. He is also state certified as a Civil Trial Specialist by the Minnesota State Bar Association.

Most recently, William was selected as a 2018 Super Lawyers honoree. In 2008, he was selected by Minnesota Lawyer as one of 15 Attorneys of the Year. This award is reserved for a select group of attorneys who distinguish themselves with their exemplary work. Honorees are chosen by a panel from the nominations submitted based on procuring a successful result in an important case or business transaction; demonstrated leadership in professional associations; participation in newsworthy events in the legal community; and performing significant public services or in-house legal services.

During his career, William has recovered millions of dollars in damages for people injured on the road, at work, and at home. He shares his legal talents with the community by regularly judging Mock Trial Programs at the high school and college levels.

William is a vital member of our firm, providing extensive experience and specialized knowledge in the areas of automobile, motorcycle and snowmobile accidents, homeowner, construction site, defective products, wrongful death and no-fault automobile insurance litigation.

Awards and Associations

Super Lawyer - Thomson Reuters

PI General - Plaintiff

Martindale Hubbell Preeminent Peer Review Rating

Peer rated for highest level of professional excellence

Certified Civil Trial Law Specialist

Minnesota State Bar Association

Board Certified Civil Trial Advocate

By the National Board of Trial Advocacy

2008 Attorney of the Year

Minnesota Lawyer

AAA Panel of Arbitrators

American Arbitration Association

American Association for Justice Leader's Forum


Hennepin County Bar Association


Minnesota State Bar Association


Minnesota Association for Justice


American Association for Justice


St. Andrew's Lutheran Church


Chain Reaction Accident Causes Death


Litigation Type - Semi Truck Accidents

Client Injury - Death

Our client was involved in a chain reaction accident on a freeway. The accident was caused by an uninsured driver that pulled out on to the freeway after having stopped on the shoulder. That vehicle was hit by a passing car while he was trying to merge. Our client and the car ahead of him were slowing to avoid the collision ahead of them and our client was rear-ended by a semi truck and was instantly killed.

Client Reviews

Featured News and Articles

Weighing negligence and risk

The Minnesota Supreme Court put the brakes on a defendant's argument that the doctrine of primary assumption of risk should relieve him of liability for negligent operation of a snowmobile.

$24 Million Train Accident Verdict

Minnesota Lawyer honored Bill Bongard for his work for the families of the four teens that were killed in a railroad crossing accident in 2003.

Local Lawyer Considered Among The State's Best

William Bongard was nominated as Attorney of the Year (2008) by Minnesota Lawyer. The recognition stems from a case in Anoka involving a group of teenagers whose vehicle was struck by a train.

The Latest You Should Know Newsletter


  • J.D., Cum Laude, 1981, William Mitchell College of Law, St. Paul, MN
  • B.A., Cum Laude, 1977, St. Olaf College, Northfield, MN

Why I Became a
Know Your Rights
Personal Injury Attorney

I’ve been representing injured people in courtrooms throughout Minnesota for 37 years. And my entire career has been spent right here as an injury lawyer at SiebenCarey, proud to work with the best personal injury law firm in the state. I never thought once about doing anything else because of the tremendous satisfaction I get helping others achieve justice.

Featured Awards

Client Reviews

out of 9 reviews
Morgan Petoletti

My husband had an amazing experience with this firm. They listened and took the time to understand our case.

Jazz Smith

SiebenCarey is a professional and dedicated law organization that help accident victim.

Jenna L. at Insider Pages

I have had nothing but great service with these guys. They are very knowledgable on a wide variety of subjects and topic. They will help you with any case you need!

St. Paul Local 12

Thanks for everything, your experience paid off BIG!!!

Carly R.

My boyfriend was hit by a car and while all the attorneys he talked to said he didn't have much chance of a case, SiebenCarey took him on and gave him a fighting chance. He's still recovering, but SiebenCarey is making it a lot easier.

Jesse Bukal

In need of a personal injury attorney? Well you're if you're reading this you're in the right place. You'd be hard pressed to find more competent attorneys than the ones here at SiebenCarey.

They took my case to trial and an amazing job presenting the facts and fighting for my best interests! Three years ago I was unsure of what my future would bring; now that it's over I can rest a bit easier. With SiebenCarey as my counsel, I believe I had the absolute BEST representation a person could've asked for. I knew that I wanted the absolute best representation when searching for an attorney to handle my case and I most definitely received it.

If you need a personal injury attorney, look no further. Can't recommend highly enough.

Eric Petoletti

Even though I was states away and could only talk on the phone, they listened and did everything that they could to win my case. I felt like I was a part of the family.

Daniel Ball

Really good professionals, they solved my issues in no time using the most impressive and advanced approach. Really good, highly recommended.

Renee Goneau

SiebenCarey is a great personal injury law firm that really cares about their clients.  Highly recommend!