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Best Private
Investigators in

Why These Private Investigators?

Our goal is to connect people with the best local experts. We scored private investigators on more than 25 variables across five categories, and analyzed the results to give you a hand-picked list of the best private investigators in Seattle, WA.

Reviewed Curated Top Picks 160 103 18

Our Selection Criteria:

  • 1. Reputation

    A history of delighted customers and outstanding service.

  • 2. Credibility

    Building customer confidence with licensing, accreditations, and awards.

  • 3. Experience

    Masters of their craft, based on years of practical experience and education.

  • 4. Availability

    Consistently approachable and responsive, so customers never feel ignored.

  • 5. Professionalism

    Providing service with honesty, reliability, and respect.

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ArchAngel Cyber Investigations Inc.

ArchAngel Cyber Investigations Inc. is an Edmonds full-service private investigation and security consulting firm that was founded by Michael Rock in 2006. The company offers a wide range of investigation services such as surveillance, attorney services, trial preparation, insurance fraud, custody issues, spousal infidelity, domestic relations, cheating spouses, workers’ compensation, disability claims, missing persons, skip trace, background checks, and advanced Internet research.

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Bambenek Investigative Group

Bambenek Investigative Group is a Gig Harbor private investigative service that specializes in intellectual property investigations, surveillance, fraud investigations, missing persons, and asset identification and recovery. The company also provides services such as accident investigations, court research, criminal investigations, environmental investigations, and personal injury investigations. Bambenek Investigative Group also provides protection services such as premise protection, stalking issues, surveillance and counter-surveillance, executive and personal protection, corporate special events, and security consultation.

Gig Harbor, WA 98335


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Brian Blackwell Investigations

Brian Blackwell Investigations is a Seattle private investigation service. Brian Blackwell has been a licensed private investigator since 1993 and offers various investigative services. He provides services for insurance claim investigations, surveillance and skip tracing, and litigation and process serving. He also provides private investigative services for infidelity and cheating spouse surveillance including photographs, video, identity, background investigation, and child protection.

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Emerald City Investigations

Emerald City Investigations is a Des Moines private investigative company that provides services for clients throughout Washington State. The company provides various private investigative services such as adultery and marital infidelity, surveillance, child custody, background and pre-employment checks, locates and skip tracing, address verification and history, asset searches, court and public record research, and insurance fraud and injury claims, as well as protection services.

Des Moines, WA 98198


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Holmes Legal Investigations, LLC

Holmes Legal Investigations, LLC is a Tukwila private investigative service that was founded by principal Andy Holmes. Andy has over a decade of experience working in the Middle East and Southeast Asia for the Department of Defense, the US State Department, and other government agencies. Holmes Legal Investigations, LLC offers various civil investigations, criminal investigations, and security consulting services such as background investigations, interviews and statements, surveillance, felony and misdemeanor investigations, video depositions, event security, and executive protection.

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HSI Investigations

HSI Investigations is a Seattle private investigation service that provides investigative services for attorneys and other licensed private investigators, businesses, government, and private citizens. The company specializes in criminal defense investigations, civil rights investigations, personal injury investigations, labor/management/employment investigations, and land use/environmental/natural resource issues. Principal investigator John Hays has over 40 years of investigative experience.

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Intravaia Investigations LLC

Intravaia Investigations LLC is a Seattle private investigative service that was founded in 2010 by owner Michael Javorsky. The company staff are all prior law enforcement officers and/or military personnel. Intravaia Investigations LLC offers a wide range of security consulting and private investigations services such as business protection, computer monitoring and forensics, criminal investigations, insurance investigations, missing persons and emergency locates, and physical protection.

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Leigh Hearon Investigative Services

Leigh Hearon Investigative Services is a Quilcene-based private investigative service that was founded in 1992. The company has clients worldwide and offers assistance for clients within the legal community and in the private sector. Leigh Hearon Investigative Services provides services such as witness interviews, background checks, insurance fraud investigation, locates, and assistance in developing trial strategies.

Quilcene, WA 98376


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Linda Montgomery Investigations

Linda Montgomery Investigations is a Seattle private investigation service that offers a wide range of services. The company also offers a Professional Investigation Seminar and a Washington State PI Certification Course. Linda Montgomery Investigations provides services such as advanced Internet research, background investigations, and civil and criminal trial preparation. The company also provides corporate investigations such as due diligence, pre-employment background, workers’ compensation claims, corporate fraud, litigation support, and sexual harassment.

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Melendez & Associates Investigations

Melendez & Associates Investigations is a Bellevue private investigative service that provides services for individuals, law firms, and sole practitioner attorneys throughout the United States and worldwide. The company provides investigative services for personal injury, family law and probate, criminal defense, and corporate investigations.

Bellevue, WA 98004


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One Daly

One Daly is a Kent-based private investigative service that was founded by owner Lawrence W. Daly in 1988. Lawrence has over 40 years of experience in the criminal justice field and specializes in child sexual assault investigation. He provides various investigative services such as forensic services, services for trial, and consultation and professional training. He conducts sexual assault investigations, child sexual assault interviews, and professional witness interviews. Lawrence also conducts evaluation, examination, and assessment of evidence.

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Powers Investigations

Powers Investigations is a Renton private investigative company that was founded in 2001. The company provides a large number of investigative services such as surveillance, locates, background checks, asset searches, process of service, insurance and fraud, and witness interviews. Powers Investigations offers clients assistance with auto claims, accident claims, property claims, injury claims, product liability claims, and more.

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Premier Risk Solutions, LLC

Premier Risk Solutions, LLC is an Everett private security company that was founded in 2014. The company provides numerous services such as security consulting services, food protection, private security services, private investigative services, and digital forensics. Premier Risk Solutions, LLC maintains business relationships throughout the world, allowing the company to draw upon resources in 65 countries.

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Rain City Investigations

Rain City Investigations is a Seattle private investigation company that is operated by a former federal law enforcement officer with over 15 years of investigative training, education, and experience. The company provides various private investigator services such as civil investigations, maritime – fisheries investigations, skip trace, domestic investigations, background investigations, and fraud investigations. Rain City Investigations also offers various other services to clients based on the circumstances of each individual case.

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Rampart Group

Rampart Group is a Seattle security consulting and private investigations company that was founded by owner Kathy Leodler. Kathy has over 30 years of investigative and security expertise. Rampart Group offers various services such as investigations, training services, security consulting and services, protection strategies and services, crisis response, and business continuity planning. The company also offers on-call 24/7 security consulting services.

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The Steel Horse Group

The Steel Horse Group is a Tacoma-based private investigative company that provides surveillance investigations and security consulting services. The company provides services for clients such as law firms, government offices, corporations, small businesses, nonprofits, faith based organizations, and domestic and private individuals. The Steel Horse Group provides services such as investigations, surveillance, background checks, and executive protection.

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Washington State Investigators

Washington State Investigators is a Seattle private investigation company that was founded in 2013. The company provides a wide range of private investigation services such as adultery and infidelity, civil investigations, computer security, corporate investigations, covert surveillance, criminal investigations, cyber investigations, employment verification, employee harassment, background checks, photo documentation, workers compensation, identity theft, network security, real estate and land investigations, skip trace, and surveillance.

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Winquist Investigations

Winquist Investigations is a Kenmore private investigative company that was founded in 1988 by owner Rose Winquist. The company provides services to the legal, insurance, and business communities, as well as private parties. Winquist Investigations offers a wide range of investigative services such as business, estate and probate, commercial litigation, insurance defense, domestic, public service, due diligence, and criminal cases.

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