Our Story

The story of ITC Diligence begins with David G. Harlow Sr., a pioneering customs broker whose commitment to integrity and service reshaped the landscape of Foreign Trade Zones in Southern California. With decades of experience and a deeply rooted belief in doing what’s right, David Sr. founded ITC in 2002 to support underserved businesses seeking to navigate the complexities of global trade. What started as one man’s mission has evolved into a multi-generational company led today by his son, David R. Harlow, continuing a proud tradition of advocacy, compliance, and visionary growth in the international trade community.

Jason Poyser,  Director of Consulting CCS; CZS

Jason Poyser’s approach to helping ITC clients centers around trust and persistence. "It’s more than the task list," Jason explains. "It’s about being there consistently to support clients and celebrate their success as if it were our own." Whether guiding clients through customs compliance or navigating Foreign-Trade Zone (FTZ) projects, Jason sees every win as a shared victory.

One experience stands out for Jason as a lesson in perseverance.

A client needed a customs bond aligned with a new warehouse address- a typically straightforward process. However, months of obstacles with Customs delayed the update. After exhausting automated processes, Jason had to engage directly with the Customs bond department through countless emails and calls. "It was a test of patience and respect," Jason recalls.

Eventually, his persistence paid off, and the issue was resolved, allowing the client to move forward with their FTZ operations.

For Jason, honesty is at the core of every interaction. "You can’t pretend to know everything, and it’s okay to admit when you don’t," he shares. "Honesty builds credibility, fosters teamwork, and makes problem-solving a lot more rewarding."

Delas McCarroll, Director Of Customs Brokerage

For Delas, every customs challenge is an opportunity to build something better. With decades of experience in logistics and brokerage, he brings structure, clarity, and consistency to ITC’s operations.

"What drew me to ITC was the chance to be part of a team that values both innovation and precision," Delas shares. "It is about making sure our clients can count on us to keep things moving smoothly."

One of his first priorities at ITC was to streamline how the team manages complex filings across multiple clients. By standardizing procedures and improving internal coordination, Delas helped reduce turnaround times and eliminate common errors. The result was faster clearances and fewer disruptions for clients working under tight timelines.

Whether refining processes or supporting team development, Delas focuses on ensuring that every client receives consistent, accurate, and timely service.

Nicky Lang, Accounting Manager

For Nicky Lang, running ITC’s accounting operations smoothly begins with the right mindset. “I start every day with a positive attitude,” she says with a smile. “It sets the tone for productivity and helps me lead the team effectively.”

A recent project tested her leadership skills and demonstrated the power of teamwork. A key client needed an enormous amount of work completed under a tight deadline, and the brokerage team felt overwhelmed by the task.

“We were really up against the clock,” Nicky recalls. But instead of panicking, she brought the team together, focusing on resilience and breaking the workload into manageable tasks. "We pulled through, meeting the deadline and delivering the project on time."

Leading by example is how Nicky ensures her team stays committed to ITC’s values of hard work and integrity. "I believe in clear communication and setting the right example," she explains. "When my team sees me staying positive and focused, they know they can rely on me, and that keeps everyone motivated to give their best."

Founding of ITC Diligence

In 2002, David G. Harlow Sr. founded ITC Diligence to fill a critical gap in the Southern California FTZ industry.

His vision was to create a company that provided high quality consulting services and advocated for the industry through the establishment of the first non-profit organization representing the Foreign Trade Zone Program in the region.

Growth and Expansion

From its humble beginnings focusing solely on Foreign Trade Zone consulting, ITC Diligence has expanded its opportunities to include customs brokerage, supply chain solutions, and international trade consulting.

Our growth has been driven by our unwavering commitment to our core values and our ability to adapt to the evolving needs of the industry.

Key Milestones

2002: David G. Harlow Sr. founded ITC Diligence.

2005: Launched our Customs Brokerage division, thanks to the trust and support of Prego, Inc.

2020: Expanded our product and service offerings, landing our largest client to date, Central Oceans, LLC.

2022: Opened a new location in Boise, Idaho.

2023: Introduced new services such as international trade insurance, bonded warehouse consulting, and e-commerce brokerage solutions. Additionally, a 3rd vertical was launched: supply chain solutions.

2024: Expanded our global reach with a new hub in Fort Worth, Texas.

Resilience and Resourcefulness

Our ability to go above and beyond for our clients is exemplified in our response to challenging situations. Whether it's navigating compliance issues or managing large-scale logistics projects, ITC Diligence International stands ready to deliver results with resilience and resourcefulness.

Future Vision

Looking ahead, ITC Diligence International aims to continue its growth and expand its market share both nationally and globally. We plan to open new offices, introduce innovative services, and enhance our operations. Our mission remains clear: ““We deliver unparalleled global trade services throughout the international trade community while providing leadership through advocacy for today and tomorrow.”

David R. Harlow’s Vision for the Future:

“As a visionary, I strive to maintain ITC’s relevance and grow our market share to be impactful nationally and globally. Our goal is to scale our operations, introduce new services, and stay true to our foundational values of integrity and commitment.”