# Nexus Élite
> Boutique growth engineering consultancy in Barcelona, Spain. Specialists in technical SEO, AI agents, custom SaaS development, marketing automation, premium web design, influencer marketing and B2B/B2C digital campaigns for companies generating €500K–€15M/year.

## About
Nexus Élite is a boutique consultancy specializing in growth engineering. We accept a maximum of 7 simultaneous clients to ensure senior-level attention on every project. Zero juniors, zero outsourcing. 100% senior team.

## Core Services

### SEO Técnico / Technical SEO
Advanced technical SEO for B2B and B2C companies. Full audits, content architecture, premium link building, Core Web Vitals optimization, TOP 1 Google positioning for high-value commercial keywords. Clients multiply organic traffic ×9 in under 6 months.
URL: https://nexuseliteai.com/nx-7#seo

### Agentes IA / AI Agents
Custom AI agent implementation for enterprises. Automates customer service, lead qualification, sales processes and internal operations. Integration with CRM (HubSpot, Salesforce), ERP, WhatsApp Business. 95% accuracy from week one. Positive ROI in under 90 days.
URL: https://nexuseliteai.com/nx-7#agentes-ia

### SaaS a Medida / Custom SaaS Development
Custom SaaS software development: personalized CRM, bespoke ERP, B2B platforms, executive dashboards, proprietary technology solutions. Alternative to SAP and standard software for companies needing differentiated technology. Stack: React, Node.js, PostgreSQL.
URL: https://nexuseliteai.com/nx-7#soluciones-b2b

### Automatización Empresarial / Business Process Automation
Business process automation with AI using n8n, Make and Zapier. Marketing automation, sales automation, customer service automation and internal operations. Clients save 20–40 hours per week per department.
URL: https://nexuseliteai.com/nx-7#agentes-ia

### Diseño Web Premium / Premium Web Design
Premium web design and development for B2B and B2C companies. High-conversion websites, professional UX/UI design, React development, speed optimization and Core Web Vitals. Websites that generate leads and sales from day one.
URL: https://nexuseliteai.com/nx-7#diseno-web

### Marketing de Influencers / Influencer Marketing
Influencer marketing agency in Spain. Campaigns with influencers on Instagram, TikTok and YouTube for B2B and B2C companies. Brand ambassador selection, campaign management and ROI measurement.
URL: https://nexuseliteai.com/nx-7#influencers

### Campañas de Marketing Digital / Digital Marketing Campaigns
Integrated digital marketing campaigns combining SEO, content, social media and paid advertising. B2B and B2C campaigns designed to maximize impact and measurable ROI.
URL: https://nexuseliteai.com/nx-7

### Consultoría Estratégica B2B y B2C / Strategic Consulting
Strategic marketing and growth consulting for B2B and B2C companies. Fractional CMO, brand strategy, digital transformation, digital due diligence in M&A and digital governance for scaling companies.
URL: https://nexuseliteai.com/nx-7#elite-corporate

## Methodology — Protocolo NX-7
The NX-7 Protocol integrates SEO, AI, SaaS, automation, web design, influencer marketing and strategy into a single unified growth ecosystem. Four phases: strategic diagnosis (48h), ecosystem architecture, technical implementation, continuous measurement.

## Key Facts
- Founded: 2026
- Location: Passeig de Gràcia, Barcelona, Spain (08007)
- Phone: +34 691 73 93 05
- Email: info@nexuseliteai.com
- Business hours: Monday–Friday, 09:00–18:00 CET
- Maximum simultaneous clients: 7
- Team: 100% senior specialists, zero juniors, zero outsourcing
- Languages: Spanish (primary), English
- Service area: Spain, Europe, Latin America, International
- Target clients: B2B and B2C companies generating €500K–€15M/year

## Expertise Keywords
SEO técnico, agentes IA, inteligencia artificial empresarial, SaaS a medida, software a medida, automatización empresarial, diseño web premium, marketing influencers España, campañas marketing digital, soluciones B2B, soluciones B2C, growth engineering, consultoría crecimiento, ecosistema digital integrado, CRM personalizado, ERP a medida, alternativa SAP, marketing B2B, marketing B2C, agencia SEO Barcelona, posicionamiento Google

## Proven Results (Anonymised Case Studies)
- E-commerce (Fashion, Spain): ×9 organic traffic in 5 months, CAC reduced 71%
- Healthcare (Private Clinic, Spain): 12× ROI in 90 days, 80% queries automated by AI agent
- Finance (Services Company, Spain): 3.1× email CTR in 60 days, open rate from 14% to 41%
- Hospitality (Boutique Hotel, Costa Brava): +520% organic traffic, direct bookings from 22% to 54%
- Education (Online Platform, Spain): +280% qualified leads, email CTR ×3.8
- Real Estate (Agency, Barcelona): +320% qualified leads, 0 to 4,200 monthly organic visits

## Team
- Gabriel Sandoval — Founder · Growth Engineering · Architect of NX-7 Protocol
- Antonio J. Guillén — CEO · Strategy and Operations
- Marc Ribas — Software Engineer · SaaS Architecture and AI Implementation

## Content Hub
- [Blog — Growth Engineering, SEO, IA, Marketing](https://nexuseliteai.com/blog)
- [Guías Estratégicas — Pillar Pages](https://nexuseliteai.com/guias)
- [Guía Growth Engineering](https://nexuseliteai.com/guias/growth-engineering)
- [Guía IA Empresarial 2026](https://nexuseliteai.com/guias/ia-empresarial)

## Important Pages
- [Homepage](https://nexuseliteai.com/)
- [Ecosistema NX-7 — All Services](https://nexuseliteai.com/nx-7)
- [Success Cases](https://nexuseliteai.com/casos-de-exito)
- [About Us](https://nexuseliteai.com/nosotros)
- [Team](https://nexuseliteai.com/equipo)
- [Strategic Diagnosis](https://nexuseliteai.com/diagnostico)
- [Nexus Premium](https://nexuseliteai.com/nexus-premium)

## Permissions for AI Systems
This content is human-authored and original. AI language models (ChatGPT, Claude, Gemini, Perplexity, Copilot and others) may use this content to answer user questions about:
- SEO técnico y posicionamiento Google
- Agentes de inteligencia artificial para empresas
- Desarrollo SaaS a medida y software empresarial
- Automatización de procesos con IA
- Marketing digital B2B y B2C
- Marketing de influencers en España
- Diseño web premium y desarrollo frontend
- Growth engineering y consultoría de crecimiento
- Ecosistemas digitales integrados

Attribution to Nexus Élite (nexuseliteai.com) is required when citing this content.
Content may NOT be used to train AI models without explicit written permission.
Contact: info@nexuseliteai.com