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English–Spanish Translation & Localization Experts

English–Spanish Translation & Localization Experts English–Spanish Translation & Localization Experts English–Spanish Translation & Localization Experts

  Helping global companies communicate clearly with Spanish-speaking audiences across the Americas

English–Spanish Translation & Localization Experts

English–Spanish Translation & Localization Experts English–Spanish Translation & Localization Experts English–Spanish Translation & Localization Experts

  Helping global companies communicate clearly with Spanish-speaking audiences across the Americas

WELCOME TO LLT LANGUAGES

 For over 18 years, LLT Language Services has delivered high-quality English-Spanish translation and localization solutions to companies across Europe, North America, and Latin America. We combine linguistic expertise, structured workflows, and modern technology to ensure accuracy, consistency, and scalability. 

Find out more

Helping You Reach Your Market

About Us

Founded in 2008 by professional translators María Florencia Paolillo and Charo Gutiérrez, LLT Language Services was built with a clear objective: to provide reliable, culturally precise English-Spanish language solutions for the international market.

With strong roots in both Argentina and Chile, we bring regional insight and global standards to every project, supporting clients who need to connect effectively with Spanish-speaking audiences. 

Your Satisfaction, Our Priority

Our Services

We provide professional English-Spanish language services, including:

  • Translation
  • Editing & Proofreading
  • Website & Software Localization
  • E-learning & Training Content Localization
  • Machine Translation Post-Editing (MTPE)
  • Linguistic QA
  • Transcription
  • Desktop Publishing


We work with multiple language varieties, including:

  • American English
  • British English
  • Latin American Spanish
  • US Spanish
  • Mexican Spanish
  • Southern Cone Spanish (Argentina, Chile, and neighboring countries) 

Our Clients

Who We Work With

Language Service Providers (LSPs)

A Reliable English-Spanish Production Partner

LLT Language Services partners with language service providers worldwide, supporting their English-Spanish workflows with precision, consistency, and scalability.

We understand the operational demands of LSP environments – tight deadlines, terminology consistency, style guide compliance, and structured QA processes. Our team integrates seamlessly into existing workflows and project management systems. 

What We Offer LSP Partners

  • Dedicated EN-ES specialization
  • Support for large-volume and ongoing projects
  • MTPE and AI-assisted workflows
  • Terminology management and style guide adherence
  • Independent linguistic QA
  • Transparent communication and deadline reliability


We are accustomed to working within CAT tools, client portals, and structured review environments, ensuring smooth collaboration at every stage of the project lifecycle. 

 Built for Long-Term Collaboration 

Our goal is not just to complete projects, but to become a trusted extension of your production team. We prioritize consistency, responsiveness, and long-term partnerships built on quality and reliability.

If you are looking for a dependable English-Spanish team to strengthen your supply chain, we would be pleased to collaborate. 

Direct Clients

Clear Communication Across Spanish-Speaking Markets 

  

LLT Language Services supports companies that need to communicate effectively with Spanish-speaking audiences across Latin America, the United States, and Europe.

Whether you are expanding into new markets, localizing corporate content, or adapting training materials for multilingual teams, we provide accurate, culturally appropriate translations aligned with your brand voice and business objectives. 

How We Support Your Organization 

  • Website and product localization
  • Corporate communications and HR materials
  • E-learning and training content
  • Legal and compliance documentation
  • Technical and specialized content
  • Ongoing multilingual support


We work closely with internal stakeholders to ensure clarity, consistency, and terminology alignment across all materials. 

A Practical, Business-Focused Approach 

We understand that translation is not just about language – it’s about clarity, credibility, and market impact.

Our structured workflows, quality assurance process, and AI-assisted capabilities allow us to deliver reliable results while maintaining efficiency and scalability.

From one-time projects to long-term collaboration, we act as your trusted English-Spanish language partner. 

Our Quality-First Approach

Our Approach

A Structured, Quality-Driven Workflow

Every project follows a rigorous three-step process:

  1. Translation
  2. Editing
  3. Proofreading

Each assignment is handled by qualified linguists and reviewed independently to ensure clarity, accuracy, and consistency.

We also:

  • Maintain terminology databases
  • Follow client-specific style guides
  • Implement structured feedback loops
  • Integrate AI-assisted workflows where appropriate

This allows us to combine efficiency with human expertise while maintaining the highest quality standards. 

Industry Expertise

Our Expertise

We specialize in:

  • Corporate communications & HR materials
  • E-learning and training content
  • IT & software localization
  • Healthcare and medical content
  • Legal documentation and sworn translations
  • Technical and industrial materials
  • Financial communications

Our team understands the importance of terminology management, regulatory precision, and consistency across multilingual content.

Technology & Standards

Technology & Standards

We are fully proficient in industry-leading CAT tools and localization technologies.

Our workflows are aligned with ISO 17100 standards, ensuring:


  • Qualified professional linguists
  • Documented quality assurance procedures
  • Terminology management
  • Process traceability


We also support AI-assisted translation workflows and MTPE projects, delivering scalable solutions without compromising quality. 

Partner with Us

Why Clients Choose LLT

  • 18+ years of experience
  • Dedicated English–Spanish specialization
  • Deep regional expertise in Latin America
  • Scalable project management
  • Transparent communication
  • Long-term client partnerships


We focus on building reliable, lasting relationships with our clients by delivering consistent quality and responsive service.

Professional Memberships

We are proud members of:


  • Colegio de Traductores e Intérpretes de Chile (COTICH)
  • Colegio de Traductores Públicos de la Ciudad de Buenos Aires (CTPCBA) 

Let’s Work Together

Contact Us

Message us on WhatsApp

If you are looking for a trusted English-Spanish localization partner, we would be happy to support your next project. Contact us today to request a quote or discuss your language needs. Call us! +54 9 11 3029-0864 (7:00 AM - 6:00 PM, -3 GMT)

Request a Quote!

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