León & Asociados
LLCCottage Grove · MN
Professional consulting in Minnesota

Transform your potential into opportunities.

Immigration preparation, business consulting and process improvement — with clarity, method and human support.

Welcome

Hi, we are León & Asociados.

We are a consultancy founded in Minnesota by a Colombian engineer, created to walk alongside people and companies that want to move forward: from preparing the documentation of an immigration process with order, to optimizing the processes of a business.

Our two solution lines — immigration and professional — share one same way of doing things: with method, with care and with warmth. Here you are not just another case: we explain every step, we tell you honestly what we can and cannot do for you, and we walk with you to the end.

Why we do this

Talent exists everywhere. Opportunities don't.

León & Asociados was born from the conviction that people and organizations can achieve much more when they have the right structure, knowledge and support. That is why we combine immigration, engineering, data analysis, operational excellence and human development under one philosophy:

Empowering people, knowledge and processes to generate sustainable results.

PotentialOpportunityResultImpact
Solutions catalog

Two lines. One methodology.

Migration solutions and engineering & consulting. Swipe each line, open the full catalog, and mark the solutions you need.

Web Development

Web Development

Get a quote
View full catalog →
EB-2 NIW

EB-2 NIW

$2,500 USD
View full catalog →
Why choose us

Our differentiator.

We're not a processing agency: we're a team of engineers who solve complex problems and explain every decision clearly.

Engineering method

We apply the same data and evidence standards from engineering and Lean Six Sigma to every case. No assumptions: everything is justified, everything is measured.

A team trained across several engineering fields, not just one
Every step of your case is documented and traceable
Black Belt methodology applied to every process

Honesty before sales

We don't promise approvals. We explain real risks, USCIS data-based probabilities, and clear contracts with no surprises. Your trust matters more than a sale.

If your case isn't viable, we tell you before you pay
Scope and fee in writing before we start
You know what your service includes and what it doesn't

For those who value clarity

We work with people and businesses who want to understand their process, make informed decisions and move forward step by step.

Service in your language, from first message to delivery
Straight answers, no unnecessary jargon
You always know where your process stands
Areas of expertise

Where we have real expertise.

Six areas of work under one team, each with a clear owner and verifiable experience.

Immigration

Document preparation for visas, residency and citizenship.

AI & automation

Smart workflows that save time and reduce errors.

Data

Dashboards and analysis that turn information into decisions.

Processes

Continuous improvement with Lean Six Sigma and DMAIC.

Materials

Engineering judgment for selection and technical performance.

Sustainability

Efficiency and responsibility built into the design.

Our process

Five steps. One methodology.

Every client action triggers a phase of our DMAIC cycle. Full transparency, start to finish.

YOU
US
STEP 01ExploreD

Browse the catalog, read what each service includes and compare options.

US · Define

We define your goal — immigration or business — with real data, not assumptions.

STEP 02HireM

You confirm the service and pay online securely.

US · Measure

We quantify the exact scope: evidence, data and available information.

STEP 03AccessA

We assign you access to your personal portal with all process information.

US · Analyze

We detect critical strengths and real gaps in your case or project.

STEP 04CollaborateI

You upload documents, sign your contract online, and receive organized updates.

US · Improve

We design and build the solution with technical judgment.

STEP 05ResultC

You see progress in real time until the final delivery of your service.

US · Control

We deliver with complete backing — documents or results — and a final review.

LEON & ASOCIADOS · LEAN SIX SIGMA DMAIC
Your personal portal

Your whole process in one place.

No more lost emails or digging through WhatsApps.

leon-asociados.com/portal
Hi, María
EB-2 NIW
IN PROGRESS
Stage 03 · Case preparation64%
Payment confirmed
Contract signed
Document upload
Package review

Online contract

Digital signature and built-in PDF reader.

Document upload

Upload and organize everything in one place.

Real-time progress

See each stage as it moves forward.

Protected data

Your information, secure and confidential.

Team messaging

Talk to whoever handles your case, no lost threads.

Email notifications

We notify you at every important step.

Privacy & confidentiality

Your information, treated with respect.

Every document you share is handled with discretion and used only for your process.

Confidentiality agreement

Every case is handled with discretion.

No third parties

Your data is never shared or sold.

Limited data use

Only what your process truly needs.

Legal compliance

We operate within the current framework.

Our team

Technical judgment for projects that leave no room for improvisation.

We work with the best research tools of this era and with primary sources. Every case is unique, every process is unique, and it is born from a real need for improvement.

01

Top-tier research

We work with the best research tools of this era and with primary sources — not with assumptions.

02

Every case is unique

No process is ever repeated: each one is designed from scratch and is born from a real need for improvement.

03

Honesty and transparency

If something does not fit your situation, we tell you clearly from the start.

Who leads the consultancy
Natalia León Marín
Natalia León Marín
Founder · León & Asociados LLC

Natalia León Marín —
engineer, consultant, founder.

Chemical Engineer · Universidad Jorge Tadeo Lozano
M.S. Mechanical Engineering · University of St. Thomas (in progress)
Lean Six Sigma Black Belt
Immigration document preparation — not the practice of law
“Where others see a problem, I see an opportunity to improve.”
Our founder's full story →
Start today

Mine started like this.

Yours can start today.

Tell us your case. No commitment.
Honesty from the very first message.

I want my Green Card

We evaluate your EB-2 NIW profile and prepare your petition with technical precision.

Tell us your case →

I need data analysis

Dashboards, AI automation and process improvement with Black Belt methodology.

See services →

Write to us directly

Via WhatsApp, SMS or email. We reply within 24 hours.

Contact us →

Document preparation · We are not lawyers · Minnesota, USA

León & Asociados
LLC · Cottage Grove

Preparación documental migratoria y consultoría profesional con cuidado y método de ingeniería.

@leonyasociadosllc
Soluciones
Procesos migratoriosPeticiones familiaresAjuste de estatusEB-2 NIWDesarrollo profesionalDatos & DashboardsDesarrollo WebDiseño & Materiales
Navegación
Sobre NataliaCatálogo migratorioCatálogo profesionalCuéntanos tu casoPortal clientePrivacidadTérminos de servicio
Contacto

Escríbenos y te orientamos sobre el camino con mayor impacto.

Cuéntanos tu caso
Cottage Grove, MN · Atención en todo EE.UU.
Aviso legal
© 2026 León & Asociados LLC · Todos los derechos reservados · Cottage Grove, MN

Legal notice

ESPAÑOL

León & Asociados LLC es una empresa de consultoría profesional registrada en el estado de Minnesota. Ofrecemos dos líneas de solución: (1) preparación de formularios y documentación migratoria, y (2) consultoría en optimización de procesos, análisis de datos, metodología Lean Six Sigma y automatización.

León & Asociados LLC NO es una firma de abogados y ninguno de sus representantes es abogado, ingeniero profesional licenciado (PE), ni asesor legal o financiero.

Las soluciones de preparación migratoria se limitan a la organización y preparación de formularios conforme a las instrucciones oficiales de USCIS; no constituyen asesoría legal de ningún tipo. Las soluciones de consultoría técnica se basan en metodologías de mejora de procesos y análisis de datos; no constituyen práctica profesional de ingeniería regulada.

Para asuntos que requieran representación legal migratoria o soluciones de ingeniería profesional licenciada, León & Asociados LLC recomienda consultar con un abogado de inmigración licenciado o un ingeniero profesional (PE) con licencia activa.

ENGLISH

León & Asociados LLC is a professional consulting firm registered in the state of Minnesota. We offer two lines of service: (1) preparation of immigration forms and documentation, and (2) consulting in process optimization, data analysis, Lean Six Sigma methodology, and automation.

León & Asociados LLC is NOT a law firm, and none of its representatives is an attorney, licensed professional engineer (PE), or legal or financial advisor.

Immigration preparation solutions are limited to the organization and preparation of forms in accordance with the official USCIS instructions; they do not constitute legal advice of any kind. Technical consulting solutions are based on process-improvement methodologies and data analysis; they do not constitute the regulated professional practice of engineering.

For matters requiring legal immigration representation or licensed professional engineering solutions, León & Asociados LLC recommends consulting a licensed immigration attorney or a professional engineer (PE) with an active license.

León & Asociados LLC · Professional consulting · Not a law firm or licensed engineering firm · Minnesota, USA