← All OSINT tools

People Investigations — OSINT Tools

36 tools

People investigation tools pull together public records, contact details, address history, relatives, and background information to help you locate or verify a specific person. Investigators, journalists, recruiters, and individuals use them for due diligence, reconnecting with contacts, screening, and confirming that someone is who they claim to be. Coverage differs sharply by country, so the right tool often depends on the region you are researching.

When choosing one, weigh data freshness, jurisdictional coverage, and how transparent the source is about where records come from. Cross-check anything important against a second source, because aggregated records can be outdated or mismatched. To confirm identity from a photo, add a reverse face search, and see our roundup of the best people search tools. Only use these services for lawful purposes — screening for tenancy, credit, or employment may be regulated where you live.

192 (UK)

Search by person, business, address. Limited free info, premium data upsell.

411 (US)

Search by person, phone number, address, and business. Limited free info, premium data upsell.

Ancestry

Premium data, free trial with credit card.

Apollo.io

Free B2B Phone Number & Email Finder. 1200 credits per user/year for free plan.

BeenVerified

Black Book Online

Free. Nationwide directory of public record lookups.

Canada411

Search by person, phone number, and business. Free.

Classmates

High-school focused people search. Free acounts allow creating a profile and viewing other members. Premium account required to contact other members.

ContactOut

Unlock the world's most accurate contact data. Find emails & phone for 300M professionals.

Clustermaps

Find people and address information associated with them

CrunchBase

Business information database, with a focus on investment, acquisition, and executive data. Ancillary focus on market research and connecting founders and investors.

FaceCheck.ID

Search the internet by face.

Family Search

Popular genealogy site. Free, but registration required. Funded by The Church Of Jesus Christ of Latter-day Saints.

FamilyTreeNow

Research family and geneology, no registration required, can search addresses, phone numbers, and email addresses as well as associations.

Federal Bureau of Prisons - Inmate Locator (US)

Search federal inmates incarcerated from 1982 to the present.

Fold3 (US Military Records)

Search military records. Search filters limited with free access. Premium access requires subscription.

Genealogy Bank

Premium data, free trial with credit card.

Genealogy Links

Genealogy directory with over 50K links.

Homemetry

Reverse address search and allows searching for properties for sale/rent..

InfoTracer

Search for people. (Searches are paid)

Judyrecords

Free. Nationwide search of 400 million+ United States court cases.

Kompass

Business directory and search.

Mugshots

OpenSanctions

Information on sanctions and public office holders.

PeekYou

PeekYou offers the ability to search for people with checks done against more sites. Can check for arrest records as well.

Reunion

People search. Limited free info, premium data upsell.

Socialcatfish

Superextensive people search which works worldwide. Searches are done from 200 Billion records.

SearchBug

People search. Limited free info, premium data upsell.

Spokeo

People search. Limited free info, premium data upsell.

The National Archives (UK)

Search UK national archives.

UniCourt

Limited free searches, premium data upsell. Nationwide search of 100 million+ United States court cases.

UK Phone Book

Search people in a similar way as 192.com

VineLink

Inmate search and notification service for victims of crime, linked to multiple correctional facilities' booking systems in the U.S.

Voter Records

Free political research tool to study more than 100 Million US voter records.

White Pages (US)

People search. Limited free info, premium data upsell.

ZabaSearch

Frequently asked questions

What information can people search tools find?

Depending on the country and source, they may return full names, current and past addresses, phone numbers, email addresses, relatives, and public records such as court, property, or business filings. Data is aggregated from public and commercial sources, so completeness and accuracy vary. Always verify key details before acting on them.

Are people investigation tools legal?

Searching public records is generally legal, but how you use the results can be regulated. In many jurisdictions, using this data for employment, tenant, or credit decisions falls under consumer-protection or background-check laws with strict requirements. Use the tools for lawful due diligence and personal safety, never for stalking, harassment, or discrimination.

How accurate is aggregated people data?

Accuracy varies because records are compiled from many sources that update at different rates. You may encounter outdated addresses, merged profiles of people with similar names, or missing entries. Treat results as leads, corroborate across independent sources, and use a reverse face search on any photo to confirm you have identified the correct person.

Search all 1,200+ OSINT tools instantly, or run a target through the investigation console.

Open the OSINT directory →