About ATech Investigation Services

Massachusetts’s #1 Private Investigation Agency — Licensed in 5 States

ATech Investigation Services, Inc. is a private investigative agency licensed throughout New England, known for delivering trusted results by a team of experienced, professional investigators.

For over 40 years, ATech has been built on one simple idea: every client deserves Peace of Mind, Confidentiality, and Results — especially during life’s most difficult moments.

Our Mission

Supporting You Through Difficult Times

To satisfy all clients’ personal needs during a difficult time. Whether you’re facing infidelity, searching for a missing loved one, or navigating a complex legal matter — we approach every case with empathy, discretion, and an unwavering commitment to finding the truth.

Our Vision

Three Principles, Every Case

  • Peace of Mind
  • Confidentiality
  • Results
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Years in Business
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States Licensed
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Investigation Services
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Missing Person Success Rate

Meet The Team

The Investigators Behind ATech

Decades of combined experience, trained in surveillance, database research, and civil investigation. Every case is handled with discretion and care.

James L. Pero

President & Licensed Private Investigator

James L. Pero has nearly 40 years of investigative experience throughout Massachusetts and nationwide. He is a Licensed Private Investigator with hands-on expertise in missing person investigations, cheating partner surveillance, civil work for attorneys, debugging, asset searches, and background checks.

Jim is well known throughout the United States and has been featured on local news for successfully locating missing persons — including personally locating his own four siblings after 39 years of separation. He has also provided executive protection for both celebrities and corporations, and is known for being trustworthy, reputable, fair, and thorough. He takes the time to listen and always works toward a resolution.

“Here at ATech, our primary focus is to provide our clients with peace of mind. Call us today for a free consultation. We are here to listen and maintain confidentiality for our clients.”

Miriah Killeen

Investigator — Office & Field

If you feel more comfortable speaking with a female investigator, Miriah is here to listen. She brings several years of investigative experience across both office and field work, holding a Bachelor’s Degree from Colby-Sawyer College.

Miriah specializes in database searches, surveillance, background checks, and civil work for attorneys — bringing the same discretion and thoroughness that defines every ATech investigation. Call today for peace of mind.

Licensed & Insured

Fully licensed, bonded, and insured in Massachusetts, New Hampshire, Maine, Connecticut, and Rhode Island.

40+ Years of Trust

Serving individuals, attorneys, and corporations since 1983 — one of the most established PI agencies in New England.

Complete Confidentiality

Every consultation and case is handled with absolute discretion. Your privacy is never compromised.

Licensed In

Five States Across New England

Massachusetts, New Hampshire, Maine, Connecticut, and Rhode Island

Interested in Working With Us?

We’re always looking for experienced, trustworthy investigators to join the ATech team.

Call Us Today for Peace of Mind

Free, confidential consultations available. We’re here to listen — and ready to help.

Confidential · No Pressure · No Obligation