Wasser Investigations Inc. published this list and ranks itself first. Ratings, review counts and hours come from Google and each firm’s website, checked October 27, 2026. License numbers come from each firm’s website and filing years from the Florida Division of Corporations, checked October 30, 2026. This is not an independent review.
Where these firms work from and how they differ
You may be an attorney with a matter on Key Biscayne, or a family facing a custody or infidelity question. Either way, you'll hire a firm based off the island. Wasser Investigations and Miami Private Investigations both have offices on Ponce de Leon Blvd in Coral Gables. Valdes Investigation Group is in Miami, on SW 136th Ave. The clearest differences between them are hours and the services each one spells out.
Hours split the list cleanly. Valdes Investigation Group is open 24 hours, every day, which makes it a call to make at night or on a Sunday. Miami Private Investigations offers 24/7 emergency assistance for active cases. Wasser Investigations keeps office hours Monday through Friday, 9am to 6pm, and offers something different. The owner, Travis Wasser, works the cases himself.
Case type matters too. Wasser lists its attorney-side services in detail, from witness interviews and sworn statements to insurance defense and workers' comp surveillance for insurers and defense firms. With Valdes and Miami Private Investigations, describe your case on the first call and ask if it fits their work. Reviewers of both firms most often mention case results.
What makes fieldwork on Key Biscayne different
Key Biscayne is a small island village of about 14,800 people, per the 2020 Census. One road, the Rickenbacker Causeway, carries everyone on and off the island. Drivers heading south pay a toll. Crandon Park fills the north end, and Bill Baggs Cape Florida State Park fills the south.
That shapes surveillance. With one way in and out, a car that follows a subject across the causeway is easy to spot, and causeway traffic can hold up a follow. Condo lobbies and guard gates are private property, so lawful surveillance stops at the door.
Ask any firm how it plans to cover a Key Biscayne job before you hire. A good answer says how many investigators it will send, where they will wait, and how they will stay out of sight.
Key Biscayne private investigators compared
Two of these firms sit on Ponce de Leon Blvd in Coral Gables, and the third works from Miami. The table lines them up by Google rating, hours, and the Key Biscayne case each one fits.
| Investigator | Based in | Google rating (reviews) | Hours | Best for |
|---|---|---|---|---|
| Wasser Investigations Inc. | Coral Gables | 5.0 (2 reviews) | Mon to Fri, 9am to 6pm | Attorneys needing litigation support, discreet custody and infidelity cases |
| Valdes Investigation Group | Miami | 4.9 (210 reviews) | Open 24 hours, every day | The largest Google review sample here, any-hour contact |
| Miami Private Investigations, LLC | Coral Gables | 4.9 (90 reviews) | Mon to Fri, 9am to 6pm ET; 24/7 active-case emergencies | A Coral Gables firm with 24/7 active-case emergency assistance |
The 3 best private investigators serving Key Biscayne
1. Wasser Investigations Inc.
5.0 (2 reviews) · 2525 Ponce de Leon Blvd, Suite 300, Coral Gables, FL 33134 · Agency roots: 1985 · Florida license A3200002 · (305) 278-8700
Best for: Attorneys who need court-ready litigation support, and private clients with infidelity or custody questions
Wasser Investigations is based in Coral Gables and handles private investigator services on Key Biscayne for law firms and private clients. It's the pick for attorneys who need litigation support they can build a case on. That means fact development, witness interviews, sworn and recorded statements, and timeline reconstruction for civil and criminal cases. Families come to the firm for surveillance in suspected infidelity and child custody matters. The firm is licensed as Florida Agency #A3200002 and belongs to the Florida Association of Licensed Investigators. Owner Travis Wasser works the cases himself, and one investigator handles a case from the first call to the final report. Findings arrive in organized, court-ready reports with supporting source data. The firm also serves papers on difficult or evasive subjects, runs background checks, asset searches, and skip tracing, and handles employee misconduct investigations for Key Biscayne employers, from time theft to conflicts of interest. Customers have left only two Google reviews so far, both five stars. The office is closed weekends. A case brief sent through the website gets a confidential reply within one business day.
The agency’s published history traces its roots to The Wasser Agency, founded by David Wasser in 1985. Travis worked alongside his father for more than a decade before acquiring the agency in 2021 and establishing the current business. His biography lists a Bachelor of Science in Criminal Justice from Florida International University, earned summa cum laude.
Strengths
- Owner works the cases himself
- One investigator from first call to final report
- Licensed Florida agency with roots in 1985, FALI member
- Free, confidential 30-minute consultation
- Serves papers on evasive subjects
Keep in mind
- Office closed weekends
- Office hours end at 6pm
2. Valdes Investigation Group
4.9 (210 reviews) · 12855 SW 136th Ave Ste 102, Miami, FL 33186 (agency website; Google lists Ste 221) · (786) 717-7412 · License number not posted on its website · Registered in Florida 2019
Best for: The firm with the most customer reviews here, and a line that's open at any hour
Valdes Investigation Group is based in Miami and is open 24 hours, every day. It's the pick when you want the largest Google review sample of these three firms and someone you can reach at night or on a weekend. Its 4.9 rating rests on 210 Google reviews, the most on this list. Reviewers most often mention effective results and fast, timely service, and many call the team professional. Others point to thorough work and close attention to detail, and a few single out discretion, which matters in a family case. One reviewer did complain about results that arrived later than expected. Before you hire, agree on a reporting schedule in writing, and ask whether the firm handles your type of case, whether that's a custody question, a witness locate, or surveillance for a law firm.
Strengths
- Open 24 hours, every day
- 4.9 rating across 210 Google reviews
- Reviewers praise fast, timely service
Keep in mind
- One reviewer reported slow results, so set a reporting timeline
3. Miami Private Investigations, LLC
4.9 (90 reviews) · 4000 Ponce de Leon Blvd Ste 470, Coral Gables, FL 33146 · (305) 686-7826 · Florida license A1800135 · Registered in Florida 2018
Best for: A Coral Gables firm with 24/7 emergency assistance for active cases
Miami Private Investigations is based in Coral Gables and keeps office hours Monday to Friday, 9am to 6pm ET, with 24/7 emergency assistance for active cases. That makes it the pick when you want a Gables firm with after-hours help for an active-case emergency. It holds a 4.9 rating across 90 Google reviews. The most common thread in those reviews is successful case results. Reviewers also describe the staff as professional and knowledgeable, and they mention clear communication and quick responses. A few note discretion and detailed reporting, two things that matter whether you're a family or a law firm. Before you sign, ask who will actually work your case, whether that person stays on it, and how often you'll get reports. Also confirm the firm takes your case type, from a custody matter to field work for an attorney.
Strengths
- 24/7 emergency assistance for active cases
- Coral Gables office
- Reviewers cite successful case results
Keep in mind
- Ask up front who will work your case
Which firm to call first for a Key Biscayne matter
Find your situation in the left column. Wasser Investigations is our pick for attorney work, family cases, and hard-to-serve papers. Valdes covers nights and Sundays, while Miami Private Investigations offers 24/7 emergency assistance for active cases. Wasser's office is closed on weekends.
| Your situation | Start with | Why |
|---|---|---|
| You’re an attorney who needs court-ready witness statements or surveillance | Wasser Investigations | Witness interviews, sworn and recorded statements, and surveillance, delivered in court-ready reports. See litigation support for Key Biscayne attorneys. |
| A private custody or infidelity matter where you want one investigator throughout | Wasser Investigations | The owner works the cases himself, and one investigator stays on the case from first call to final report. |
| Serving papers on an evasive subject | Wasser Investigations | Handles service of process on difficult, evasive, or high-profile subjects, plus rushed service. |
| You need someone at night or on a Sunday | Valdes Investigation Group or Miami Private Investigations | Valdes is open 24 hours, every day; Miami Private Investigations offers 24/7 emergency assistance for active cases. Wasser is closed weekends. |
| You want the firm with the most customer reviews | Valdes Investigation Group | A 4.9 rating across 210 Google reviews, the most of these three. |
| You want a Coral Gables firm with around-the-clock emergency help for an active case | Miami Private Investigations | Its Coral Gables office is open Monday to Friday, 9am to 6pm ET, with 24/7 emergency assistance for active cases. |
What to ask on the first call
Wasser publishes its Florida license number, Agency #A3200002, and keeps one investigator on a case from the first call to the final report. Hold every firm you call to the same standard. These checks protect your case and your privacy.
- Ask for the firm’s Florida agency license number.
- Ask who will work your case and whether that person stays on it to the end.
- Agree on how often reports arrive and in what format, especially if the file may go to court.
- Ask what evidence the firm can lawfully gather and how it will document time, place, and method.
- Confirm that what you share stays confidential and is not passed to third parties.
- Ask about fees, and whether the first consultation is free.
How we chose these three
We built this list from Google ratings and reviews and from each firm's own website. Each firm was matched to the reader it suits, whether that's an attorney who needs a court-ready file, a family with a custody or infidelity question, or someone who needs a call answered after hours. None of the three is based on Key Biscayne, so each one is marked with the town it works from. Wasser Investigations is our pick at number one for its agency history, direct owner involvement, and litigation and private-client support. Valdes and Miami Private Investigations both hold a 4.9 rating, so they follow by review count. License numbers come from each firm’s website. The registered year is when the company was filed with the Florida Division of Corporations.
Hiring a private investigator for a Key Biscayne case
Is there a private investigator office on Key Biscayne?
None of the three firms on this list keeps an office on Key Biscayne. Wasser Investigations and Miami Private Investigations are based in Coral Gables, and Valdes Investigation Group is based in Miami. Wasser lists Key Biscayne in its service area. Whichever firm you call, ask how it will cover field work on the island and how you'll meet with your investigator.
How do I check that a Florida private investigator is licensed?
Ask the firm for its Florida agency license number before you hire, then confirm it with the state licensing office. A licensed firm should share it on the first call. Wasser Investigations in Coral Gables publishes its number, Florida Agency #A3200002, and is a member of the Florida Association of Licensed Investigators. Skip any investigator who won't give you a license number.
Can a private investigator help with a child custody case in Key Biscayne?
Yes. Wasser Investigations, based in Coral Gables, handles surveillance in child custody matters for private clients on Key Biscayne, along with discreet infidelity investigations on Key Biscayne. One investigator stays on the case from the first call to the final report. No investigator can promise how a judge will rule, so work with your family lawyer on what the court needs to see.
Which private investigators near Key Biscayne answer at night or on Sundays?
Valdes Investigation Group in Miami is open 24 hours, every day, so it is a call to make at night or on a Sunday. Miami Private Investigations in Coral Gables offers 24/7 emergency assistance for active cases; office hours are Monday to Friday, 9am to 6pm ET. Wasser Investigations keeps office hours Monday through Friday, 9am to 6pm, and is closed weekends. A case brief sent to Wasser gets a confidential reply within one business day.
Will evidence from a private investigator hold up in court in Florida?
It can, when it is gathered lawfully and documented with care, but no investigator can guarantee how a Florida court will treat it. Ask how the firm records time, place, and method, and what a finished report looks like. Wasser Investigations in Coral Gables delivers organized, court-ready reports with supporting source data. Our guide on what makes surveillance video admissible in court covers what attorneys look for.
Is the first consultation with a private investigator free?
Yes, at Wasser Investigations in Coral Gables. The first consultation is free, confidential, and carries no obligation. It's a 30-minute case assessment run by a licensed investigator, not a receptionist, and what you share is not passed to any third party. For Valdes Investigation Group and Miami Private Investigations, ask about consultation fees and rates when you call.
How do I contact Wasser Investigations about a Key Biscayne case?
Call Wasser Investigations at (305) 278-8700, Monday through Friday, 9am to 6pm. The office is at 2525 Ponce de Leon Blvd, Suite 300, in Coral Gables. You can also send a case brief through the website and get a confidential reply within one business day. A licensed investigator handles the first conversation.
Sources (checked October 27, 2026)
- Wasser Investigations Inc. on Google Maps (rating, reviews, address, hours)
- Valdes Investigation Group on Google Maps (rating, reviews, address, hours)
- Miami Private Investigations, LLC on Google Maps (rating, reviews, address, hours)
- Wasser Investigations, Key Biscayne service page (owner, one investigator per case, services)
- Wasser Investigations, contact page (consultation, response time, confidentiality)
- Wasser Investigations, background and asset investigations (court-ready reports)
- Wasser Investigations, Key Biscayne employee misconduct investigations
- Florida Division of Corporations (Sunbiz), company filing dates, checked October 30, 2026
- Key Biscayne, Florida (2020 Census population)
- Rickenbacker Causeway (access and toll)
Talk to a licensed investigator about your case
Book a free, confidential 30-minute case assessment with a licensed Wasser investigator. Call (305) 278-8700 or send a case brief, and you'll hear back within one business day.