Who We Are

Built on Integrity. Driven by Excellence.

Inspired by opportunities to deliver exceptional outcomes. Led by integrity and core values. Informed by longstanding principles and relationships.

40+Years of executive construction leadership
$2.5B+In completed projects
Client-firstIndependent, disciplined, and transparent
Allen Guillory, founder of ALG Construction Management & Development
Allen Guillory · Founder & Principal

Our Vision

A trusted partner at every phase.

ALG Construction Management & Development was founded to provide Owners, Developers, General Contractors and Operators a trusted partner who brings exceptional leadership to every phase of a project across Commercial and Tenant Improvement, Corporate Headquarters, Healthcare, Hospitality, Public and Institutional, Manufacturing and Industrial, Historic Renovations and Restorations, and Multi-Family / Mixed Use.

Our Mission

Excellence in service.

Founded on the belief that everything we do should begin with the pursuit of excellence and honoring God by serving others with integrity, leadership and compassion.

About the Founder

Allen Guillory

Founder Allen Guillory brings over four decades of experience managing complex projects, leading and mentoring construction teams, and guiding organizations through growth, change, and operational improvement. His career includes roles as Vice-President of Construction, Operations Manager, Regional Manager, and Senior Project Manager overseeing project portfolios, teams, budgets, contracts and schedules in Nashville, Tennessee, Huntsville, Alabama and numerous cities across the Southeast.

Driven by a deep passion for construction management and guided by steadfast core values, Allen has built a career defined by excellence, accountability, and owner-focused leadership. His track record—over $2.5 billion in completed projects—demonstrates his ability to consistently deliver on time, under budget, and beyond expectations.

Known for steady leadership on complex and fast-moving projects, Allen brings clarity, structure, and calm to challenging situations. He communicates openly and knowledgeably with owners, stakeholders, and project teams, ensuring alignment throughout the project lifecycle. His approach is built on transparency, disciplined project controls, and a strong grasp of how early decisions influence cost, schedule, and long-term results.

Following a long career in senior construction leadership, Allen founded ALG to provide owners with the unbiased expertise and disciplined oversight often missing during preconstruction and early project development. He also partners with general contractors to improve operations, resolve project challenges, recover struggling jobs, and elevate team capabilities through targeted training.

ALG was founded with a primary goal: to build a construction management firm committed to exceptionalism and integrity, deeper investment in the Middle Tennessee and North Alabama communities, and the mentorship of the next generation of construction leaders.

“The most important decisions happen before construction begins. Our job is to ensure they’re made with clarity, experience, and confidence.”

Our Approach

Owner-first. Clear. Disciplined.

Owner-first mindset

Every recommendation is made to protect the owner's interests—not the contractors', not the designers'.

Clarity through communication

Complex issues are translated into clear, actionable information for decision-makers.

Disciplined project controls

Cost, schedule, and scope alignment are monitored continuously, not reactively.

Early-phase leadership

The most important decisions happen before construction begins—and we ensure they're made with confidence.

Experience-driven insight

Four decades of lessons learned inform every recommendation and every action.

Markets We Serve

Experience Across the Built Environment.

Commercial / Tenant Improvement
Corporate Headquarters
Industrial & Manufacturing
Healthcare & Medical Office
Hospitality
Public & Institutional
Historic Renovations & Restorations
Multi-Family / Mixed Use

What Clients Are Saying

Trusted Through the Details.

I have worked with Mr. Allen Guillory on numerous projects over the past 35 years. He represented the general contractor while I served as the structural engineer. Throughout our professional relationship, Allen consistently demonstrated exceptional construction knowledge across a wide range of project types, varying in size, complexity, materials, and site conditions.

Mr. Guillory combines deep construction knowledge, sound judgment, and practical problem-solving skills. His ability to foresee challenges, control costs, maintain schedules, and foster effective project coordination makes him an outstanding asset to any construction team or project.
Frederick Weis | PE Retired
It is my pleasure to recommend Allen Guillory without reservation. Allen was instrumental in helping our firm analyze our 183,000-square-foot warehouse project in Mount Juliet, Tennessee, assisting with feasibility, budgeting, and leveraging his local relationships to help us characterize the site challenges very early in the process. That early insight saved us time and money.

What really impressed me about Allen is his ability to communicate and deliver on time. He communicates clearly, sets realistic expectations, and follows through on his commitments. He has the experience, discipline, and client-first mindset that this business demands, and any owner or developer who engages him will be in capable hands.
Arya Ghazizadeh | Managing Partner | Shallow Bay Realty Partners

Let's build something exceptional—together.

Experience. Integrity. Results. Start a conversation about your project, organization, or construction challenge.

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