Best Private Investigators near Paramount, CA

These agencies serve Paramount from nearby bases in towns including Los Angeles, South Gate and Wilmington.

13 agencies listed · 4 open 24/7 · 10 open weekends · 11 rated 4.5+ · 7 show a license

Data verified October 15, 2026

Paramount Investigative Services

Paramount Investigative Services

4.8 48 reviews
“He helped me resolve my issue within 24hrs, and gave me a big leg up in a legal battle.”
Free consultationLicensedSince 2010
Los Angeles, CA · 20 mi from Paramount
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Sunset Blvd. Investigations

Sunset Blvd. Investigations

5.0 41 reviews
“He was able to provide me the information needed in such a speedy time”
PI license #28035BBB A+Since 2012
Los Angeles, CA · 20 mi from Paramount
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L&B Services

L&B Services

4.9 50 reviews
“They are professional and patient with explaining all the processes that's involved.”
Se habla españolSBN#308804Since 2021
South Gate, CA · 4 mi from Paramount
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MCM Investigations

MCM Investigations

4.2 7 reviews
“Thank you from the bottom of my heart.”
Free phone consultationCalifornia PI license #19160Serves United States, InternationalOpen 24 hoursSince 1999
Los Angeles, CA · 20 mi from Paramount
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Breakpoint Investigations

Breakpoint Investigations

5.0 28 reviews
“Prompt, efficient, polite & professional Karen demonstrated that she is the epitome of 'process service'.”
Serves South Bay, NationwideOpen 24 hoursSince 2009
8 mi from Paramount
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JPL Process Service

JPL Process Service

4.6 27 reviews
“JPL provides real friendly services and they are good.”
Since 2003
Westminster, CA · 14 mi from Paramount
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The 13 agencies on this page are the private investigators listed for Paramount, CA. What each one states about its license, its specialties and the areas it covers comes from its own website; ratings and quotes come from public reviews.

Area overview: Paramount, CA

The 13 agencies on this page are rated from 4.2 to 5.0 across 356 reviews; 2 have 50 or more reviews and 11 are rated 4.5 or higher. The topics that come up most in reviews of the agencies on this page are "communication", "results" and "efficient". 4 are open around the clock; 10 are open on Saturdays and 8 on Sundays. The services the agencies on this page list most often on their websites are background checks (2), missing persons (2) and surveillance (2). 7 show a license on their websites and 5 have a BBB rating of A or A+. Domain records put 9 websites of the agencies on this page at ten or more years old; the oldest dates from 2004. 4 offer urgent consultations and 6 offer a free initial consultation. 1 has Spanish-speaking staff. We have a website on file for all 13 of the agencies on this page; 11 publish a contact page and 9 list a public email. We count these figures across the agencies on this page; hours and prices change, so confirm the details with the agency before you book.

Do investigators listed for Paramount discuss a case free?

6 of the 13 agencies state that a first consultation costs nothing. Use it to describe the problem and hear whether the work can be done lawfully at all. A straight agency will sometimes tell you on that call that what you want cannot be obtained, which saves you a retainer.

Lockjaw Legal Process Services

Lockjaw Legal Process Services

4.3 5 reviews
“You couldn't have a better person on your side !!”
Free consultationBBB ASince 2021
Santa Ana, CA · 20 mi from Paramount
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Excaliber Investigations

Excaliber Investigations

5.0 1 review
“Reliable, trustworthy and highly recommended investigated service.”
Serves all of CaliforniaBBB A+Since 1994
La Habra, CA · 12 mi from Paramount
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PF Info Services - A Private Investigations Company

PF Info Services - A Private Investigations Company

5.0 24 reviews
“When we got proof that he was violating the court orders, not only did I get full physical custody back, I was allowed to move out of state with my girls.”
Free consultationLicensedSince 2023
10 mi from Paramount
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Justice Solutions Group

Justice Solutions Group

4.6 18 reviews
“These guys are the real deal: super professional, highly in integrity and really care about you and what you need.”
Since 2015
Seal Beach, CA · 11 mi from Paramount
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Trans West Investigations

Trans West Investigations

License #AA009930Since 1982Open 24 hours
Los Angeles, CA · 20 mi from Paramount
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Golden State Detectives

Golden State Detectives

5.0 15 reviews
“These folks truly are professionals in thier field.”
Free consultationLicensedSince 2023
Wilmington, CA · 10 mi from Paramount
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OC Confidential Investigations

OC Confidential Investigations

5.0 3 reviews
“Her rates are very reasonable and she went above and beyond what was expected to fulfill the task which wasn't easy because she was dealing with slippery people.”
Free consultationServes California, nationwideLicensedOpen 24 hoursSince 2016
Placentia, CA · 18 mi from Paramount
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