
Alfredo Medrano Sr.
Founder & President
Relationships, leadership, accountability

About us | Family-owned & operated since 2009
Who we are
Family-owned and operated since 2009. Same family, same name, same accountability on every project.
JAM Enterprise Construction is a family-owned and operated construction company with deep roots in Georgia. Since 2009, JAM has grown through one project, one relationship, and one promise at a time.
Our roots are Mexican-American. Our home is Georgia. And the values behind JAM are simple: work hard, communicate clearly, stand behind your word, and take pride in what carries your name.
We bring that mindset to every project — from preconstruction and estimating through field execution and closeout. Our clients know who they are working with, our crews understand the expectations, and ownership stays involved from start to finish.
We’re proud of where we came from, but we’re even more focused on where we’re going: building JAM into the kind of construction partner general contractors, owners, and communities can depend on for years to come.
Family values. Field accountability. Work built to last.
Proposals define inclusions, exclusions, assumptions, and interfaces before award.
Access, sequencing, manpower, equipment, and adjacent work are reviewed before mobilization.
Preconstruction and field operations remain connected through handoff and execution.
General contractors have direct access to the people responsible for scope and delivery.
Meet the leadership team
JAM is family-owned and operated. The people pricing the work, planning the work, and standing behind the work remain visible throughout the project lifecycle.

Founder & President
Relationships, leadership, accountability

VP of Field Operations
Manpower, logistics, execution

VP of Business Development & Preconstruction
Bid strategy, scope alignment, GC communication
What GCs get with JAM
Direct access to decision-makers
Faster answers and fewer layers
Preconstruction stays connected to the field
Ownership remains visible after award
Hispanic-owned | Family-owned & operated| Bilingual English / Spanish communication
Share the current documents, addenda, schedule, and bid date. JAM will review the package and identify the questions that affect execution.