The Nelson Difference: pioneers of border manufacturing since 1967, direct operation by the founding family, and in-house construction.
Grupo Nelson established the first maquiladora in Mexicali in 1967. Three generations later, the founding family still operates every park, every contract, and every construction project. Very few industrial developers in this city combine 60 years of permanence, operationally involved owners, and an in-house construction firm with 28 years of experience. That translates to less risk, less friction, and more speed for your project.


Pioneers since 1967
Established the first maquiladora in Mexicali
Owners operating directly
They negotiate, decide, and respond personally
In-house construction
Baumex: 28 years and 75 projects with our own team
Long-term relationships — the majority of clients expand or start new projects decade after decade.
Real permanence, direct access to the owners, and in-house construction — three things your project needs and very few in Mexicali can offer together.

60+ years
They established the first maquiladora in Mexicali — and they are still here
In 1967, Rodolfo Nelson Sr. established the first maquiladora in Mexicali. The modern industrial parks of the region did not exist. The manufacturing ecosystem that today houses 30 international corporations did not exist. Grupo Nelson was here before any of that — and is still here.
Gulfstream has been working with the family for 35 years. Honeywell, 30. They are not going to disappear in the middle of your 15-year lease.
Direct ownership
Talk to the owners, not regional managers
The founding family of Grupo Nelson is not on an honorary board — they hold active operational roles. When you need to change a contract clause, you speak with the person who can decide on the spot. Not with a regional manager who rotates every two years.
That translates to speed of decision, personal accountability, and continuity. Contracts of 10 to 15 years negotiated directly with decision-makers.


In-house construction
Baumex: one contract, one point of responsibility, from land to turnkey
If you need a building that does not exist in inventory, Baumex designs and builds it. It is Grupo Nelson's own construction firm — not a subcontracted third party. A single contract covers design, permits, construction, and delivery.
28 years of operation. 75 projects completed. The same group that manages the park where you will operate is the one that builds your facility.
Results that prove it
The most demanding have already evaluated and signed
Global corporations and Fortune 500 companies have already evaluated Grupo Nelson — infrastructure, security, compliance, construction capacity — and each one signed.
- Fortune 500 companies operating here
- They went through exhaustive due diligence before signing. If they approved, your evaluation can pass too.
- The largest industrial building in Mexicali
- 52,200 m² for Gulfstream — built by the same group that will handle your project.
- 80% repeat business
- The majority of clients come back, expand, or start new projects.
- Interiores Aereos: from 5,000 to 550,000 ft²
- The same provider from a small building to a complex 110 times larger.
- Nelson II: validated infrastructure
- Dedicated electrical substation and centralized fire suppression system — 60% savings versus an individual system.
- 30 international corporations
- Operating today in Grupo Nelson parks.
Less risk. Less friction. More speed. That is what 60 years of permanence, owners operating directly, and in-house construction mean — working together for your project.

