International Specialized Investigations

06/08/2026

MISSING: Renata Castillo, age 10, Brownsville, Texas.
Last seen: March 28, 2025
May be in the company of her father.
If you have information, call Brownsville Police Department: 956-548-7000 or NCMEC: 1-800-843-5678.

International Specialized Investigations is a Texas-licensed private investigation firm handling criminal defense investigations, surveillance, background checks, and cross-border investigations in Mexico, serving Houston and statewide Texas.

06/06/2026

06/04/2026

Is your husband coming to Houston for the FIFA World Cup?

He says he’s coming to watch the game—but is that really the only reason he’s here?

Our licensed private investigators can discreetly document his activities and help you determine whether he’s truly in town for soccer, or if he’s looking to score off the field.

We specialize in infidelity investigations, surveillance, domestic investigations, and uncovering the truth when something doesn’t add up.

International Specialized Investigations
Texas DPS License A18949

📍 10210 Grogan’s Mill Rd., Suite 245
The Woodlands, Texas 77380

📞 (800) 515-6790

🌐 www.interspecinvestigations.com

Serving Houston, Katy, The Woodlands, Clear Lake, Kemah, Seabrook, League City, Friendswood, Pasadena, Pearland, Galveston, and surrounding areas throughout the Greater Houston region.

Confidential consultations available.

Trust your instincts. Verify the facts.

06/03/2026

ROMANCE SCAMS DON’T JUST HAPPEN TO OTHER PEOPLE

Many people believe romance scam victims are elderly, lonely, or inexperienced with technology. The truth is that romance scammers target people from every walk of life. Business owners, professionals, veterans, retirees, and highly educated individuals have all fallen victim to these sophisticated schemes.

These criminals are experts at building trust. They invest weeks or even months creating an emotional connection before they begin asking for money, gift cards, cryptocurrency, personal information, or financial assistance.

If someone you’ve never met in person:
✔ Refuses to video chat or meet face-to-face
✔ Declares love very quickly
✔ Claims to be overseas, deployed, or working on a special assignment
✔ Has repeated emergencies requiring money
✔ Asks you to keep the relationship secret

You should proceed with extreme caution.

The emotional and financial damage caused by romance scams can be devastating. If something doesn’t feel right, trust your instincts and verify before you trust.

At International Specialized Investigations, we assist individuals, families, and attorneys with identity verification, background investigations, and fraud-related investigations.

📍 10210 Grogan’s Mill Rd., Suite 245, The Woodlands, TX 77380
📞 (800) 515-6790
🌐 interspecinvestigations.com
🛡 Texas DPS License A18949

Protect your heart. Protect your finances. Protect your future.

05/30/2026

INVESTIGADOR PRIVADO EN HOUSTON Y EL ÁREA DE CLEAR LAKE

🔎 ¿Necesita respuestas? Nosotros encontramos la verdad.

International Specialized Investigations ofrece servicios profesionales de investigación privada para:

✅ Houston
✅ Clear Lake
✅ Seabrook
✅ Kemah
✅ League City
✅ Friendswood
✅ Dickinson
✅ Galveston
✅ Pasadena

Nuestros Servicios:

🔹 Vigilancia y seguimientos
🔹 Investigaciones de infidelidad
🔹 Defensa criminal
🔹 Entrevistas a testigos
🔹 Localización de personas
🔹 Verificación de antecedentes
🔹 Investigaciones corporativas
🔹 Fraude y robo interno
🔹 Investigaciones en Texas y México

Se habla español.

Cuando la verdad importa, cuente con investigadores profesionales con experiencia en casos complejos y evidencia admisible en tribunales.

📍 10210 Grogans Mill Rd, Suite 245
The Woodlands, TX 77380

☎️ (800) 515-6790

🌐 www.interspecinvestigations.com

🛡️ Licencia de Investigador Privado de Texas

INTERNATIONAL SPECIALIZED INVESTIGATIONS

La verdad importa. La evidencia hace la diferencia.

05/30/2026

Please share. Every share gets her face out there.

HAVE YOU SEEN ME?
13-year-old Luz Maria Urquidez-Palacios was last seen on May 12th, in Houston, Texas.

Anyone with information is urged to call NCMEC at 1-800-THE-LOST or Harris County Constable's Office (TX) (281) 376-3472.

Poster: www.missingkids.org/poster/NCMC/2087824/1

05/30/2026

There are few things more rewarding in our profession than seeing the truth come to light and knowing that the evidence we uncovered helped prove a client’s innocence.

Recently, our firm was retained on a case where an individual was charged with Aggravated Robbery with a Deadly Weapon—a very serious felony offense carrying life-changing consequences. The allegations were severe, but the facts told a different story.

Through our investigation, we obtained video evidence that clearly showed our client was at work at the exact time the alleged crime occurred. The evidence established that he could not have been the person responsible. Ultimately, it became clear that someone else committed the offense.

This case serves as an important reminder that accusations are not proof, and that a thorough investigation can make all the difference. Every piece of evidence matters, every timeline matters, and every person deserves a complete and impartial investigation.

We are proud to stand alongside defense attorneys and their clients in the pursuit of truth and justice.

International Specialized Investigations

Criminal Defense Investigations • Witness Interviews • Surveillance • Evidence Development • Texas & Mexico Investigations

05/29/2026

Houston • Clear Lake • Kemah • Seabrook

Need Answers? We Find Them.

At International Specialized Investigations, we provide professional investigative services for attorneys, businesses, and private individuals throughout the Houston Bay Area.

Our services include:

• Criminal Defense Investigations
• Surveillance
• Domestic Investigations
• Background Investigations
• Missing Persons and Locates
• Witness Interviews and Statements
• Corporate Investigations
• Due Diligence Investigations
• Spanish-Speaking Investigative Services
• Investigations in Texas and Mexico

Whether you need assistance with a criminal case, suspected infidelity, employee misconduct, fraud concerns, or locating a witness, our experienced investigators are ready to help.

Serving Houston, Clear Lake, Kemah, Seabrook, League City, Webster, Nassau Bay, Friendswood, and surrounding communities.

Confidential. Professional. Results-Oriented.

📞 Call today for a confidential consultation.

(800) 515-6790

10210 Grogans Mill Rd Suite #245, The Woodlands, TX 77380

International Specialized Investigations

Texas Private Investigator License A18949

🌐 www.interspecinvestigations.com

“Professional Investigations in Texas and Mexico”

05/17/2026

HOUSTON INFIDELITY INVESTIGATIONS
Discreet • Professional • Confidential

Do you suspect a spouse or partner may be hiding something? Unexplained absences, sudden changes in behavior, secretive phone activity, or inconsistent stories can leave you with more questions than answers.

International Specialized Investigations provides professional and discreet infidelity investigations throughout Houston and surrounding communities, including:

Houston • Clear Lake • Seabrook • El Lago • Kemah • Friendswood • League City • Dickinson • Bacliff • Webster • Pearland • Pasadena • Galveston and surrounding areas

Services may include:

• Surveillance Operations
• Documentation of Activities and Associations
• Photo and Video Evidence
• Vehicle Activity Monitoring (where lawful)
• Background Research
• Locate Investigations
• Detailed Investigative Reporting

Get facts, not assumptions. Our goal is to provide objective information so you can make informed decisions.

Se Habla Español

International Specialized Investigations
Ryan Grayson, Licensed Private Investigator
Texas DPS License A18949
10210 Grogans Mill Rd Suite #245
The Woodlands, TX 77380
Phone: (800) 515-6790
International Specialized Investigations

Confidential consultations available.

This also adapts well into a Facebook graphic headline:

“Suspecting Infidelity? Get Answers, Not Assumptions.”
Serving Houston, Clear Lake, Seabrook, Kemah, Friendswood & Surrounding Areas

Licensed private investigator serving Houston, The Woodlands, Spring, Clear Lake, Galveston, and Mexico.