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About GAT

We were built to manage the projects nobody else will own.

GAT Construction Management was founded on a simple, uncompromising idea: the most consequential projects deserve a single accountable partner — not a tower of subcontracted decisions.

We act as your owner's representative, your principal-in-charge, and your bad-cop-when-needed. We protect schedule, scope, capital, and reputation with equal seriousness.

Our senior partners stay on every engagement from kickoff through warranty. That's the line we will not cross — and it's why our clients keep building with us.

Senior leaders walking a job site

  • 01

    Senior on the line

    A partner — not an associate — is your point of contact every day of the project.

  • 02

    Truth on day one

    We tell you what's true even when it isn't easy. Especially when it isn't easy.

  • 03

    One number, one schedule

    We don't carry parallel realities. One budget, one schedule, one source of truth.

  • 04

    Quiet excellence

    We do not chase logos. We chase the next handshake from the client we just delivered for.

Trust & Authority

Delivering for institutional owners, Fortune 500 operators, public agencies, and the developers building the next generation of American infrastructure.

  • TURNER
  • BECHTEL
  • SKANSKA
  • AECOM
  • DPR
  • MORTENSON
  • SUFFOLK
  • GILBANE
  • CLARK
  • HENSEL PHELPS

ENR Top 100 CM

Recognized 2022 • 2023 • 2024

OSHA 30 Across Roster

Zero lost-time incidents, 18-month rolling

98% Repeat Engagement

Most clients return for project two

The team

People who own the outcome.

Senior leaders accountable for delivery on every project. No project goes without a principal-in-charge.

  • 01

    Sonny Martin

    Director of Business Development & Project Manager

    15+years experience
    • Business Development
    • Project Management
    • Client Relationships
  • 02

    Marcus Beale

    Director, Pre-Construction

    18+years experience
    • Cost Engineering
    • VE
    • Procurement
  • 03

    Priya Anand

    Director, Healthcare Delivery

    16+years experience
    • Acute Care
    • Phased Occupancy
    • Compliance
  • 04

    Elena Rios

    Senior Project Manager

    14+years experience
    • Industrial
    • Mission-Critical
    • Schedule
  • 05

    Jordan Hwang

    Senior Project Manager

    13+years experience
    • Mass Timber
    • Sustainability
    • Education
  • 06

    Theo Castellanos

    Head of Field Operations

    20+years experience
    • Site Leadership
    • Safety
    • Self-Perform
Why choose GAT

A process built to be boring on the worst day.

Five stages. One accountable principal. Every project follows the same disciplined path — so the surprises stop being surprises.

  1. Step 01

    Plan

    We start by stress-testing the brief — programming, capital, and constraints — before a single drawing is committed.

  2. Step 02

    Design

    We hold design partners to performance, not promises. Constructibility and cost are designed in, not engineered out.

  3. Step 03

    Manage

    Every contract, schedule, and dollar flows through a single accountable PM. No diffusion of responsibility.

  4. Step 04

    Execute

    Senior leaders on site, daily. QA / QC, safety, and schedule enforced with the same discipline we bring to budget.

  5. Step 05

    Deliver

    Punch, commissioning, and a full warranty handover that makes day-one occupancy boring — in the best possible way.