LEAVE OUR INDUSTRY
BETTER THAN WE
FOUND IT.
LEAVE OUR INDUSTRY
BETTER THAN
WE FOUND IT.
Armadillo & Co.
Los Angeles, CA | 5K SF
OUR PURPOSE.
GCX was built on the belief that great construction starts with trust, communication, and accountability. As a full-service commercial general contractor, we help clients navigate planning, preconstruction, and construction with confidence. Our mission is simple: be responsible in our actions, reliable in our commitments, and remarkable in what we deliver.
$700M
Completed Works
120+
Award & Accolades
200+
Allies & Partnerships
WHY GCX?
GCX delivers a seamless project experience rooted in transparency, advocacy, and collaboration. We minimize friction, foster open dialogue, and ensure every stakeholder feels supported, creating enduring partnerships that last well beyond the project.
Some of our clients and partners











LEADERSHIP AT EVERY LEVEL.
Construction is a people business. The spaces we create are important, but it's the partnerships we build along the way that define who we are.
Jarred Walker
Principal/Managing Partner
Jarred Walker
Principal/Managing Partner
As Principal and Founder of GCX, Jarred is actively involved in all phases of our projects, with a strong focus on preconstruction. His leadership fosters collaborationm and encourages innovative thinking. Driving cost-saving solutions, Jarred remains engaged throughout the project lifecycle.
Greg O’Connor
Principal/Managing Partner
Greg O’Connor
Principal/Managing Partner
As Principal and Founder of GCX, Greg leverages 38 years of industry experience to build relationships, identify opportunities, and drive new projects. His deep knowledge of commercial construction strengthens client trust and supports GCX's continued growth.
Jillian Lang
Director of Project Management
Lauren Nielsen
Director of Client Experience
Lauren Nielsen
Director of Client Experience
As Director of Client Experience, Lauren builds lasting relationships and serves as a trusted resource for clients and industry partners. She champions collaboration, drives community impact, and represents GCX as a strong voice in the commercial real estate and construction markets.
Julia Qi
Senior Controller
Julia Qi
Senior Controller
Julia oversees GCX’s financial operations with precision and care. She ensures accuracy in reporting, strengthens financial processes, and provides the insight needed to guide strategic decisions. Her steady leadership supports both the company’s growth and the success of its teams.
Veronica Izmajtovich
Director of Operations
Veronica Izmajtovich
Director of Operations
Veronica drives efficiency and alignment across all aspects of GCX. Her leadership ensures that processes run seamlessly, teams stay connected, and projects maintain the highest standards of quality and delivery. With a focus on structure and collaboration, she empowers teams to perform at their best while keeping the big picture in view.
AWARDS.
LABJ Commercial Real Estate Awards, Silver, Award for Retail
Armadillo & Co.
Los Angeles Business Journal, Women of Influence
Lauren Nielsen
SFVBJ Commercial Real Estate Awards, Silver for Best New HQ
Colliers
Calibre, People’s Choice Award
Confidential Animation Client
REmmy Awards, Innovative Workplace Award
Athletic Performance Center
INDUSTRY INSIGHTS.
A closer look at the trends and perspectives shaping what we build next.

The Silent Killer of Projects
In construction, communication isn’t just a soft skill, it’s the backbone of delivering projects on

To Build or Not to Build?
For the majority of companies, physical real estate is a major equation in their business

LA Times X Fred Fitness
The Los Angeles Times sent a reporter to work out at Fred Fitness, our build
