At Andersen & Associates Investigation Services, we provide certainty and clarity through professional investigation services. Whether assisting commercial enterprises, government entities, insurance providers, or private individuals, our mission is to gather facts, uncover truths, and confirm (or disprove) suspicions with precision and discretion.

Based in Maryborough, we proudly serve the Wide Bay region of Queensland, including Hervey Bay, Gympie, Bundaberg and surrounding areas. Our dedicated team of investigators brings over 45 years of combined experience, ensuring a results-driven approach tailored to each client’s unique needs. We are committed to maintaining the highest standards of professionalism, integrity and confidentiality, ensuring our clients receive thorough, unbiased reports backed by legally admissible evidence.

Client confidentiality is at the core of our operations. We recognise the sensitivity of many investigations and adhere to strict privacy protocols to protect all information collected. Our legally licensed services ensure transparency, trust and accountability throughout the investigative process.

At Andersen & Associates Investigation Services, we value open communication. We provide verbal briefings before delivering our written reports, allowing clients to ask questions and gain full clarity on the findings. Our availability and commitment to client satisfaction mean that we are accessible whenever needed, offering peace of mind in even the most challenging situations.

Keith Spencer, one of our Directors, brings over 45 years of investigative experience, including a distinguished career as a Senior Detective with the Queensland Police. He has led major criminal and forensic investigations, as well as complex workplace accident inquiries. His expertise and leadership guide our firm’s commitment to excellence in investigative services.

Our Core Values:

  • Professionalism – Maintaining the highest standards in all our work
  • Integrity – Delivering unbiased, transparent findings with respect and diligence
  • Confidentiality – Protecting client privacy and handling sensitive matters discreetly
  • Transparency – Ensuring open, honest communication with clients and witnesses
  • Effective Communication – Providing clear, concise, and accurate information
  • Trust – Building strong, honest relationships based on reliability
  • Compassion – Approaching each case with understanding and empathy
  • Commitment – Following through on promises and maintaining accountability

If you need answers, we are here to help. Contact Andersen & Associates Investigation Services for a free consultation and take the first step toward clarity and resolution.