At Mattiacci Law, our Philadelphia personal injury lawyers strive for:

24/7 Service

Whether it’s one in the afternoon or one in the morning, you can expect to connect with a member of the Mattiacci Law team. Winning is important, but keeping you up-to-date on your case is also one of our core beliefs.

Cost-Free Until We Win

We are so confident in our ability to achieve a settlement in your personal injury case, we practice on a contingency basis. That means that you don’t pay us a dime until we win your case.

Results Driven

Our results speak for themselves. We pride ourselves on the results we obtain for our clients.

You can place your trust in us.

Bill and Kristen helped me through my whole incident. They were very helpful and understanding. They kept me informed on everything! They are such great people! It was a long process but they were there every step of the way! And I can not thank them enough for everything they have done for me!
Gabrielle Coxe
Gabrielle Coxe
18:13 13 Apr 23
John and Kristen are kind, compassionate people who get the job done! Thanks so much for your help in getting me the settlement to which I was entitled.
Jeff White
Jeff White
12:55 03 Mar 23
almost two years going back and forth, and they still worked hard for me. I'd recommend them to anyone who wants quality people helping them!
Julian Meisner
Julian Meisner
18:54 02 Mar 23
nicole flaherty
nicole flaherty
15:06 09 Feb 23
Two great lawyers that helped me out from start to finish, including with my workers’ compensation and social security disability cases. John & Bill were always available whenever I had a question and the office staff was always very nice!
pat ok
pat ok
18:20 13 Jul 22
Bill was a big help to me during my case. He came into it in the middle and helped me. He was always professional and explained everything to me. He is very knowledgeable. I never felt rushed. I would highly recommend Bill.
Cindy Jacobson
Cindy Jacobson
13:25 20 May 22
Was a great lawyer he helped me when I needed it the most he went all out his way for me and I really appreciate it thank you very much💯💯
Lurietta Falcon-mundoz
Lurietta Falcon-mundoz
14:23 02 May 22
Bill is fantastic attorney! He represented me in my case and goes extra mile. If you are looking for a sharp no bs attorney than Bill is your guy. He will work hard for you if you have a injury caused by someone's negligence. I can't say enough kind things he truly will work hard for you!
joseph sundermeier
joseph sundermeier
20:10 08 Feb 22
Shy Sehkora
Shy Sehkora
20:23 18 Jan 22
I was hit by a car back in January 2019. From this, I went through an almost 3 year lawsuit. Bill made something that is beyond stressful and full of ups and downs manageable. For someone with zero prior experience dealing with such a matter, Bill made the whole process comfortable and easy to process. A great attorney that never tried to sway me one way or another. Always giving me that facts in the best way for me to understand everything as it happened, or how it could happen. Bill is as good an attorney, as he is a teacher through his guidance and education of a personal injury case. I was never left with a single moment of not understanding or thoughts that I wasn't in the best hands. Bill is the kind of attorney that actually cares about what's best for a client first and cuts no corners. There was no doubt that I was in the best of hands.
Justin Kloc
Justin Kloc
17:21 16 Nov 21
See All Testimonials

Our Approach

We don’t settle for anything less than the best

Most cases don’t make it to trial, but we prepare for it regardless. Insurance companies can use many tactics in an attempt to cheat you out of the settlement you deserve, so sometimes, escalating to trial is necessary. In the event of a trial, our personal injury attorneys know how to handle the insurance companies and rigorously defend your rights.

Meet Managing Attorney John Mattiacci

For more than 16 years, I have represented clients who were paralyzed, brain-damaged, permanently injured, or killed. I pride myself and am honored by the many opportunities I have had to help families pick up the broken pieces and put their lives back together after devastating injuries, accidents or death.

Service is at the heart of my Philadelphia personal injury practice. When you work with me, you are family, and I fight for you like you are one of my own. Not all law firms offer the dedicated attention that myself and my associates can, and we wouldn’t have it any other way.

Learn More About John


Read through our blog for legal articles and firm news.

  • Philadelphia Personal Injury Claim Law Firm – Top Representation

    June 1, 2023 | Read Time: 7 minutes

    Maximizing Your Personal Injury Compensation in Philadelphia  Filing an Injury Claim?Get a Free Quote on Our Fees NameEmail PhoneQuick Accident Description Contact Us The plaintiff bears the burden of proof in a personal injury claim. Therefore, collecting evidence to establish the defendant’s liability and prove harm is essential. To maximize your personal injury claim, consider...

  • How to Win Your Personal Injury Case in Philadelphia

    May 15, 2023 | Read Time: 6 minutes

    Winning a personal injury claim requires plaintiffs to prove that the defendant(s) breached a legally recognized duty of care and harmed them in the process. Accordingly, personal injury attorneys build cases by gathering evidence to prove the defendant(s) negligence and the damages that resulted. Typically, the plaintiff’s attorneys compile this evidence during the discovery phase...

  • Philadelphia Personal Injury FAQ: What You Need to Know

    May 1, 2023 | Read Time: 6 minutes

    After the Philadelphia personal injury, you likely have a lot of questions. When another party caused your injury, you have a personal injury claim. Mattiacci Law represents plaintiffs who suffered all kinds of injuries, from vehicle accidents to medical malpractice. We get results.Filing an Injury Claim?Get a Free Quote on Our Fees NameEmail PhoneQuick Accident...

Why Choose Mattiacci Law? We Know Philadelphia.

Philadelphia is the fifth-largest city in the country by population. Over 1.5 million people live in Philadelphia and even more work in the city. With such a large city and so many people, accidents can and will happen. Unfortunately, when these accidents happen, the responsible parties may not want to stand up and do the right thing for accident victims. That's why handling accident cases in Philadelphia is what John Mattiacci has been doing for more than 13 years.

John has been trying personal injury trials in Philadelphia since the start of his legal career. John Mattiacci was an award-winning trial advocacy student at Temple Law before beginning his legal career in Philadelphia. The overwhelming majority of the cases John Mattiacci has handled over the years have been litigated in Philadelphia. Our firm has intimate knowledge of the legal system in Philly, from arbitration cases all the way up to complex trial cases. This experience has helped our winning injury law firm to maximize our clients’ recoveries.

The Personal Attention You Deserve

Clients first. That is a core focus at the Philadelphia personal injury firm of Mattiacci Law. We do everything we can to give our clients the attention they expect, demand and deserve. This means we do everything from making house calls or hospital visits or routinely calling clients to keep them updated on developments in their cases. We encourage our clients to contact us with questions. John Mattiacci and everyone at the firm will take the time to discuss each case, to answer clients’ questions, and to guide our clients through the legal process.

People hire an attorney to fight their legal battles. At Mattiacci Law, as dedicated Philadelphia personal injury attorneys, we try to do more than that. We strive to make our clients’ lives easier any way we can. We do this by communicating with our clients, by listening to them, and by keeping them updated and intimately involved in their cases. When our clients need help, advice or support, we are there for them.

We Get Results

John Mattiacci has successfully handled serious personal injury cases in Philadelphia for many years. Over those years, John has helped recover multi-million dollar recoveries in numerous cases in state and federal court cases. As a result, John is a member of the Multi-Million Dollar Advocates and Million Dollar Advocates Forum. Membership in this group is limited to attorneys who have recovered million and multi-million dollar verdicts and settlements on behalf of their clients. Less than 1% of all attorneys in the United States are members. We are proud of our track record of multi-million dollar and significant six-figure recoveries for our clients. Put our experience to work for you.

No Recovery, No Fee

We offer a contingency fee for personal injury cases. If we do not obtain a settlement or verdict then you do not owe us anything. We never charge a retainer and you will not pay a single penny until and unless we recover money in the case. That’s a guarantee.

If you or a family member have been injured, contact Mattiacci Law today for a free consultation. We will provide a free case review and evaluate any potential claims you have. Call today.