Diligent Investigations, LLC is a locally owned and operated private investigations company. We are dedicated to providing exceptional investigative services to our clients in Portland and the Northwest. Our team of licensed investigators is committed to delivering speedy and accurate results, ensuring our clients receive the best possible outcome.
Our Commitment to Quality
At Diligent Investigations, LLC, we understand that every case is unique and requires a personalized approach. We pride ourselves on our versatility, providing a full range of investigative services to accommodate our clients' specific needs. Our investigators undergo continuous education to maintain the highest skill set and stay abreast of current legal and ethical concerns.
Our Services
Our services include:
Insurance Investigations
We assist insurance companies and claimants in investigating claims, verifying policyholder identities, and conducting surveillance.
Corporate Investigations
Our team provides due diligence investigations, employee background checks, and corporate asset research to help corporations protect their assets and reputations.
Litigation Support
We assist attorneys and law firms in preparing cases, conducting surveillance, and gathering evidence to support litigation claims.
Domestic Investigations
Our investigators specialize in domestic investigations, including child custody disputes, marital infidelity, and pre-marriage background research.
Service of Process
We provide efficient and reliable service of process, offering various pricing options to fit your needs.
Our Guarantee
At Diligent Investigations, LLC, we guarantee prompt and professional service. Our licensed investigators are dedicated to delivering exceptional results, providing our clients with the confidence they deserve.
Get in Touch
To learn more about our services or request a consultation, please contact us at (503) 985-6659 or email dilinves@gmail.com. We look forward to serving you.
Exceptional Service and Expertise
The reviewers rave about Diligent Investigations' exceptional service, expertise, and professionalism. They praise Robert Grady, the owner, for being diligent, efficient, and effective in handling their process server requests.
Superior Process Server Services
Reviewers highlight the company's ability to deliver superior process server services at a great price. They mention that the owner goes above and beyond what is expected, communicating thoroughly throughout the process.
Professionalism and Integrity
The company's professionalism and integrity are repeatedly mentioned as setting them apart from others in the industry. Reviewers appreciate their meticulous attention to detail, commitment to upholding the law, and unwavering dedication to achieving results for their clients.
Prompt and Reliable
Diligent Investigations is praised for their prompt and reliable service, with many reviewers mentioning their ability to complete tasks quickly and efficiently. They also appreciate the electronic payment options and ease of use.
Trustworthy and Knowledgeable
Reviewers trust the company and appreciate their knowledge of the process. They feel confident in recommending Diligent Investigations to others and would use their services again if needed.

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