Broken Arrow, OK · Licensed & bonded private investigation and process service

The information you need. The service you can count on.

Lowen Investigations is a licensed and bonded Oklahoma private investigation and process service agency based in Broken Arrow, OK, serving Tulsa and surrounding areas.

Request a confidential consultation

500+ cases · Criminal defense specialist

Process serving: $75 in-county · Available 24 hrs

Open Oklahoma landscape beneath a wide sky

Tulsa base · regional reach

Case approach

Measured work. Clear reporting. Confidential from the start.

About and services

01 / About

About Mike Lowen

Mike Lowen is an Oklahoma CLEET-licensed and bonded private investigator and owner of Lowen Investigations, a private investigation and process service agency based in Broken Arrow, OK, serving Tulsa and surrounding areas. Mike earned his individual and agency PI licenses in December 2011 and has since worked 500+ private, state, and federal cases as a private investigator in Oklahoma, with 2,000+ hours of field surveillance. He spent 15 years training in investigative research and field work and helped manage a large Tulsa-based PI firm before going full-time on his own cases in July 2025. His background includes 31 years of private security experience — including armed patrol sergeant at Jarvis Security — and 15 years as a process server in Tulsa County and statewide. Since 2013, Mike has volunteered as an investigator with CFSI (Center for Search and Investigation) on missing-person cases, alongside his professional work. Licenses: Oklahoma CLEET #21AGI74399 (exp. 06/2027) · Oklahoma PI Agency License #18PIA4995 · Process Server License #PSS-2026-41 (exp. 10/2027) Training & Certifications (CLEET):

  • /Private Investigator
  • /Armed Security
  • /Unarmed Security
  • /Executive Protection
  • /Drone Investigation
  • /Skip Tracing
  • /Identity Fraud
  • /Ethics
  • /Homeland Security & Terrorism
  • /Interactions with Autism Disorder
  • /Asp Baton
  • /OC Spray
  • /Handcuffs
  • /Jumpstart Leadership
Call (539) 240-7993

02 / Services Offered

Services Offered

Discreet, lawful, and documented to a court-ready standard.

  • — Process Service in Tulsa & Broken Arrow — $75 per paper in-county; out-of-county serves $75 plus $0.69/mile. Fast, reliable process serving in Tulsa County and statewide, with proof of service that holds up in court.
  • — Surveillance — Discreet, lawful surveillance in Oklahoma for attorneys, insurers, and private clients. Documented with photos and video to a court-ready standard.
  • — Background Checks — Thorough background investigations for hiring, tenants, and legal matters in Oklahoma. Criminal history, civil records, and verification done right.
  • — Child Custody Investigations — Documented evidence for Oklahoma custody cases: activity, environment, and conduct, reported cleanly for your attorney.
  • — Missing Persons Investigations — Missing-person casework in Oklahoma since 2013, volunteer and professional. We don't stop looking.
  • — Insurance Fraud Investigations — Surveillance and records work documenting suspected fraud for carriers and counsel, built to hold up in claims and court.
  • — Skip Tracing — Hard-to-find people, found. Current addresses, employment, and assets for serves, collections, and legal matters.
  • — Asset Searches — Bank accounts, property, vehicles, and business interests located and documented for judgments and legal strategy.
  • — Infidelity Investigations — Discreet domestic investigations in the Tulsa area with documented facts — so you know the truth, whatever it is.
Call (539) 240-7993

Who we work with

01

Attorneys & law firms

Criminal defense investigation support and statewide process service designed to fit your case workflow.

02

Businesses & insurers

Surveillance, background checks, and field intelligence for sound, well-informed decisions.

03

Private clients

Missing persons, lost pets, locates, and discreet investigations—available 24 hours.

Coverage, stated clearly

Broken Arrow-based. Serving Tulsa and beyond.

Investigation work covers Oklahoma and surrounding states. Process serving is available statewide. Available 24 hours—call (539) 240-7993.

Investigation coverage

Oklahoma + surrounding states

Process serving coverage

Statewide Oklahoma

Available 24 hours

Call (539) 240-7993 or send a confidential request.

Licensed, bonded, and ready. Whether it's a criminal defense case, a process serve, or a missing person—Mike Lowen gets it done right, and fast.

Discreet communication. Clear next steps.