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PROFESSIONAL
PRIVATE DETECTIVE AGENCY

We specialize in discreet and confidential investigations for insurance companies, attorneys, businesses, and individuals throughout Wisconsin.

  Licensed. Discreet. Experienced.  

ABOUT US

Altstadt & Associates is a full-service private investigation agency based in southern Wisconsin. We specialize in professional investigations, handled discreetly and confidentially.

 

Our team conducts hundreds of investigations throughout the state of Wisconsin for insurance companies, attorneys, businesses, and individuals. We are committed to delivering accurate and timely results while upholding the highest ethical standards in our work.

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SERVICES
FOR
INDIVIDUALS

MARITAL INFIDELITY

Infidelity investigations uncover the truth while obtaining solid evidence – whether it’s for your own peace of mind or for court.

CHILD CUSTODY

Unbiased information gathered in a professional way that is documented and usable in court is persuasive even if it is never used in a court setting.

MISSING PERSONS

Locating and reconnecting with loved ones is a human desire that can bring peace of mind to all parties involved.

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SERVICES
FOR
LAW FIRMS & BUSINESES

INSURANCE FRAUD

Including traffic accidents, slip and fall incidents, and many other physical/psychological/cognitive injury claims.

WORKERS COMPENSATION

False and exaggerated claims cost insurance companies and private business large sums of money and often lost production.

INTERVIEWS & STATEMENTS

We can assist with background checks, locating witnesses, interviews, obtaining statements and a full range of investigative matters.

I was hesitant to hire a PI. A friend referred me to Altstadt and Associates, and I called to discuss my suspicion that my ex-husband was working out of town and hiding his income from me and my young son. On the second day of surveillance, Altstadt and Associates followed my ex-husband to his new job some 40 miles away and provided photos of him at work. My attorney was able to use the information to obtain payroll records and get my son the child support he deserved. I couldn’t have done it without the help of Altstadt and Associates.

G.C., Past Client

During my child custody/support case, my attorney suggested getting a private investigator involved. I hired Altstadt and Associates. They provided the proof that my ex was gainfully employed, but not paying child support. A few months later, I had a related family matter. I hired a different attorney … but I kept my investigator, and he came through for me again! Thanks Altstadt and Associates.

M.B., Past Client

CONTACT
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CONTACT US

Altstadt & Associates LLC is based in Janesville, Wisconsin and serves clients throughout the state.

We offer a free consultation to all new clients. Fill out the form below to get started, or call us at 608-751-4994.

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© 2025 Altstadt & Associates LLC

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