Humboldt County's #1 Source for Private Investigations and Process Servers

Welcome to Cook and Associates, Humboldt County's #1 choice for private investigations and process services. Cook and Associates is a team of private investigators and process servers with 50 years of experience in investigations and service of legal documents. Cook and Associates also has five experienced registered process servers to meet your process service and court filing requests.

For out of the area law firms, you may only need to use our service once but we want to make that one experience the best possible. You can rest assured that your job will get done quickly and professionally.

Whether you are looking for a missing person, require assistance with a family law matter, or are in need of legal documents served, Cook and Associates has the knowledge and expertise to get the job done.

Our commitment to providing clients with efficient, affordable and timely services is our #1 goal. Cook and Associates recognizes the importance of maintaining confidentiality and performs our services with care and discretion.

Covering Eureka, Arcata, and the Greater Humboldt Area

Northern California and Humboldt CountyWhether you are local or out-of-state, the "Redwood Curtain" can be an easy place for people to disappear. At Cook & Associates we make it our business to know every nook and cranny in one of California's most diverse regions. From the peaks of Kneeland to the bay side communities of King Salmon and Fairhaven, from the mill towns of Scotia and Rio Dell to the college campus at Arcata, Cook & Associates cover the county to track down the most elusive of individuals. If you want papers served, we do it fast. Our first attempt of service is usually within 72 hours of receiving them. 48 hour rush service also available.

Find out More... It's Easy

We know it can be painful to ask for help, but at Cook & Associates we will do our best to make the process easy for you. Our goal is to have the most efficient, cost effective and timely service in Humboldt County, and we're proud to talk to you about it. Call today and speak directly to one of our trained investigators or process servers.

We accept Visa, Mastercard, American Express, Discover, and Paypal

We accept Visa, Mastercard, American Express, Discover, and Paypal

Humboldt County Private Investigators


CALI - California Association of Licensed Investigators CALSpro NAPPS Proserve USA

Two Businesses Merging to Serve You Better

Cook and Associates is pleased to announce our new merger with Professional Photocopy of Eureka, CA. The Professional Photocopy team has over seventeen years of experience providing subpoena, process service, and on-site legal copy service to the Humboldt County area.

This merger will expand the services of both organizations, blending two teams with years of legal experience, and giving both businesses access to our team of experienced private investigators. We look forward to serving you from both our McKinleyville branch and our new Eureka offices.

Nationwide Contacts and Associates

As a member of the California Association of Licensed Investigators, Cook & Associates has contacts available throughout California and nationwide. Working with our associates and contacts throughout the country, we can provide exceptional confidential services to large business organizations and individuals.