K&A Investigations Offices and Locations

Kay and Associates Investigations works from many locations throughout the Los Angeles and California area. We also work from locations nationwide.

Where We Work

Licensed Private Investigators Serving California, Nationwide & Internationally Since 1992

At Kay & Associates Investigations, we provide professional private investigation services throughout California, across the United States, and internationally. Since 1992, our investigators have handled complex cases involving surveillance, fraud, criminal defense, infidelity, corporate investigations, asset investigations, executive protection, and high-profile matters requiring discretion and experience.

Many people searching for a private investigator want to know one thing first: Can your investigators work in my area? The answer is yes.

Our private investigators regularly conduct investigations throughout Southern California, Northern California, nationwide, and internationally, depending on the needs of the case.

Whether you are an attorney, corporation, business owner, family, or private individual, our team can provide experienced investigative support tailored to your location and situation.


California Private Investigators With Local Experience

California investigations require more than general investigative knowledge. Every city, county, and region presents different challenges involving surveillance, traffic patterns, legal environments, demographics, business structures, and local logistics.

Kay & Associates Investigations works with investigators who understand the areas they operate in and how to conduct investigations efficiently and discreetly.

We regularly conduct investigations throughout:

Los Angeles County Private Investigators

Los Angeles County presents unique investigative challenges due to its size, traffic, entertainment industry presence, corporate environment, and high-profile clientele.

Our investigators regularly work in:

  • Hollywood
  • Beverly Hills
  • West Hollywood
  • Santa Monica
  • Malibu
  • Downtown Los Angeles
  • Encino
  • Sherman Oaks
  • Tarzana
  • Burbank
  • Pasadena
  • Glendale
  • Long Beach
  • Surrounding Los Angeles communities

Our Los Angeles private investigators handle surveillance investigations, celebrity and executive matters, infidelity investigations, fraud investigations, criminal defense investigations, and complex litigation support.


Orange County Private Investigators

Orange County investigations often involve corporate investigations, family law matters, infidelity cases, and high-net-worth clients seeking discreet investigative services.

We regularly conduct investigations in:

  • Irvine
  • Newport Beach
  • Laguna Beach
  • Huntington Beach
  • Costa Mesa
  • Anaheim
  • Mission Viejo
  • Dana Point
  • Fullerton
  • Tustin
  • Yorba Linda
  • Santa Ana

Our Orange County private investigators understand the local business landscape, coastal communities, and surveillance challenges unique to the region.


San Diego County Private Investigators

San Diego County investigations require investigators familiar with coastal communities, corporate sectors, tourism-heavy areas, and cross-border considerations.

Our investigators regularly work in:

  • San Diego
  • La Jolla
  • Del Mar
  • Carlsbad
  • Encinitas
  • Oceanside
  • Chula Vista
  • Rancho Santa Fe
  • Coronado
  • Escondido

We provide surveillance investigations, fraud investigations, criminal defense investigations, executive protection, and family-related investigations throughout San Diego County.


Ventura County Private Investigators

Ventura County clients often seek private investigators for family law investigations, surveillance, business investigations, and asset investigations.

We regularly conduct investigations in:

  • Thousand Oaks
  • Westlake Village
  • Camarillo
  • Ventura
  • Oxnard
  • Simi Valley
  • Moorpark

Our investigators understand both suburban and rural investigative environments throughout Ventura County.


Northern California Private Investigators

Kay & Associates Investigations also conducts investigations throughout Northern California, including:

  • San Francisco
  • Silicon Valley
  • San Jose
  • Oakland
  • Sacramento
  • Napa Valley
  • Marin County

These investigations often involve corporate matters, fraud investigations, executive protection, due diligence, and complex litigation support.


Nationwide & International Investigations

Some investigations extend beyond California. Kay & Associates Investigations works on cases throughout the United States and internationally depending on the nature of the investigation.

Our agency has experience assisting with:

  • Multi-state investigations
  • International asset investigations
  • Corporate investigations
  • Executive protection assignments
  • Witness location investigations
  • Fraud investigations
  • Background investigations
  • High-profile and sensitive matters

Our investigative network and experience handling complex cases allow us to assist clients whose matters extend across jurisdictions.


Private Investigation Services We Provide

Our investigators handle a wide range of investigative services including:

Surveillance Investigations

Professional surveillance investigations involving:

  • Infidelity investigations
  • Workers’ compensation investigations
  • Insurance fraud
  • Employee misconduct
  • Civil litigation
  • Theft investigations

Infidelity & Relationship Investigations

Our private investigators help clients uncover facts involving:

  • Cheating spouses
  • Suspicious relationships
  • Hidden activities
  • Financial deception within relationships

Criminal Defense & Post Conviction Investigations

We work with attorneys and legal teams to conduct:

We provide Post Conviction Investigation Help That Matters


Corporate & Fraud Investigations

Our investigators assist businesses and corporations with:

  • Internal investigations
  • Fraud investigations
  • Due diligence investigations
  • Asset investigations
  • Employee misconduct investigations
  • Executive investigations

Locate & Missing Person Investigations

We help locate:

  • Missing persons
  • Witnesses
  • Debtors
  • Former associates
  • Family members
  • Difficult-to-find individuals

Why Clients Choose Kay & Associates Investigations

Licensed Since 1992

Kay & Associates Investigations is led by Andy Kay, a licensed California private investigator with decades of investigative experience.


Investigators Familiar With Local Areas

Investigations are more effective when investigators understand the area, traffic patterns, local businesses, surveillance environments, and regional investigative challenges.


Discreet & Confidential

Many investigations involve sensitive legal, personal, financial, or corporate matters. Our team handles every case with professionalism and confidentiality.


Experienced With High-Profile & Complex Cases

Our agency has conducted investigations involving:

  • Attorneys
  • Corporations
  • Executives
  • Public figures
  • Families
  • High-net-worth individuals
  • International matters

Looking for a Private Investigator Near You?

If you are searching for experienced private investigators in California, nationwide, or internationally, Kay & Associates Investigations is available to help.

Whether your case involves surveillance, fraud, criminal defense, family law matters, corporate investigations, executive protection, or asset investigations, our team can provide discreet and professional investigative services tailored to your needs.

Contact Kay & Associates Investigations today for a confidential consultation.


Frequently Asked Questions

Do you handle investigations outside of Los Angeles?

Yes. Kay & Associates Investigations conducts investigations throughout California, nationwide, and internationally depending on the case.


Can you conduct investigations in multiple states?

Yes. We assist with multi-state investigations involving surveillance, fraud, corporate matters, witness locates, and asset investigations.


Do you work internationally?

Yes. Our agency has experience assisting with international investigations and cross-border investigative matters.


What areas of California do you serve?

We regularly conduct investigations throughout Los Angeles County, Orange County, San Diego County, Ventura County, Northern California, and surrounding regions.

BEVERLY HILLS

9465 Wilshire Blvd, #300 Beverly Hills, CA 90212

CALABASAS

4500 Park Grenada Blvd, #202 Calabasas, CA 91302

THOUSAND OAKS

3255 Old Conejo Rd, Thousand Oaks, CA 91320, suite 202

Beverly Hills

Beverly Hills Investigations

Beverly Hills Detectives

We have in depth knowledge and experience in Beverly Hills locations and investigations.

Burbank

Burbank Investigations

Burbank Detectives

We have in depth knowledge and experience in Burbank locations and investigations.

Downtown LA

Downtown LA Investigations

Downtown LA Detectives

We have in depth knowledge and experience in Downtown LA locations and investigations.

Malibu

Malibu Investigations

Malibu Detectives

We have in depth knowledge and experience in Malibu locations and investigations.

San Diego

San Diego Investigations

San Diego Detectives

We have in depth knowledge and experience in San Diego locations and investigations.

Orange County

Orange County Investigations

Orange County Detectives

We have in depth knowledge and experience in Orange County locations and investigations.

Ventura County

Ventura County Investigations

Ventura County Detectives

We have in depth knowledge and experience in Ventura County locations and investigations.

West Hollywood

West Hollywood Investigations

West Hollywood Detectives

We have in depth knowledge and experience in West Hollywood locations and investigations.

Global reach, local touch.

K&A Investigations has conducted investigations in the following countries:

  • Canada

  • Mexico

  • Bahamas

  • Costa Rica

  • Guatamala

  • South Africa

  • United Kingdom

  • Dubai (UAE)

  • France

  • Belize

  • Panama

  • Equador

  • Peru

  • Colombia

  • Chile

  • Argentina

  • Guayana

  • Brazil

  • South Korea

  • China

  • Austria

  • Thailand

  • Morocco

  • Dominican Republic

  • Israel

  • Switzerland

  • Germany

  • New Zealand

  • Paraguay

  • Nicaragua

  • Honduras

  • Brunei

  • Greece

  • Philippines

  • Singapore

  • Turkey

Let’s work together

We work as a single united team with market leading firms around the world and give our clients the highest quality advice possible.