Strategy, execution, and the right amount of artificial intelligence. For companies that prefer measurable results to military vocabulary.
Digital marketing agency in Lisbon
About
Studio.351 is a digital marketing agency founded in 2019, headquartered in Lisbon. We work with companies across hospitality, real estate, restaurants, wine, e-commerce, SaaS, fintech, and luxury retail, combining SEO, GEO, performance marketing, web design, brand identity, social media, email marketing, online reputation management, AI automation, and strategic consulting. Our approach is simple to describe, less simple to execute: we listen first, optimise later, and tend to promise slightly less than we plan to deliver.
Focus
Technical depth across every discipline of digital marketing, from strategy to execution. Coordinated from Lisbon.
Method
Audit, strategy, execution, optimisation. Four phases with named accountability.
Transparency
Accessible data, weekly communication, and monthly reports grounded in facts.
Recognised by
International standards for agency evaluation. Recognition earned through merit, not marketing.
What we do
Services
SEO & GEO
Optimisation for Google, ChatGPT, Perplexity, and Gemini. Search has changed. People still look for answers, increasingly somewhere other than where the SEO industry remains comfortable. We work both fronts: traditional ranking and visibility on AI platforms. Without ceremony, with method.
Performance Marketing (PPC)
Google, Bing, Meta, Amazon, and LinkedIn Ads, managed as a portfolio. Paid campaigns tend to look simple until someone tries to make them work. We optimise budget, targeting, and messaging so that spend converts into revenue rather than into reassuring metrics.
Web Design & Development
Sites and online stores that survive the first month. We build corporate websites, landing pages, and online stores that load fast, convert at reasonable rates, and don't require emergency calls to the developer. Responsive design. Solid architecture. The rest is open to discussion.
AI Automation
Workflows, agents, and integrations with n8n, Make, OpenAI, and Anthropic. We automate processes that consume time without producing value: lead triage, first-line support, operational content generation, integrations between CRM, ERP, and marketing channels. AI is a tool. We treat it as one.
Online Reputation Management
Monitoring and managing reviews on Google, TripAdvisor, Booking, Trustpilot. Digital reputation is the cheapest capital to build and the most expensive to recover. We work with hotels, restaurants, and premium brands on proactive ORM strategies - combining human process with AI tools for timely response.
Brand Identity
Naming, visual identity, and a coherent tone of voice across every touchpoint. We treat brand as a system, not as a styling exercise. The outcome: an identity that still makes sense after launch - even when the board changes its mind about the colour palette.
Social Media & Influencers
Content management, community work, and partnerships with creators who matter. We manage Instagram, LinkedIn, TikTok, and YouTube with the calm of those who know virality is not a strategy. For hospitality, restaurants, and premium retail, we coordinate campaigns with influencers whose audience actually exists.
Strategy Consulting
Audits, planning, and marketing leadership for growing companies. For companies that need method before execution, we offer fixed-term consulting: full audits, 12-month plans, in-house team integration. We work with your CMO, not in place of one.
View all services →
Leading digital marketing services for companies.
Industries we work with
We work with companies across eight sectors where we can demonstrate results — not only goodwill.
Estates, wine brands, enotourism. Online sales, experiences, identity for a sector that runs on cultural patience.
Don’t see your sector listed? In many cases, what determines the outcome is not the industry itself, but the maturity of the project and the clarity of its objectives. Usually worth the conversation.
Boutique real estate agency in Lisbon. Hyper-local SEO: +410% organic traffic, 50% lower cost per lead, Top 3 rankings for twenty-five critical keywords.
Hospitality
−40% OTA commissions, +70% direct bookings
Portuguese hotel group. Integrated PPC with OTA management and direct booking optimisation. A marketing team finally able to explain where the budget goes.
Four phases, conducted in order, with no unnecessary enthusiasm.
How we work
(01)
Audit and Diagnostic
We start by understanding the current state: traffic, conversion, competitive positioning, technical infrastructure, AI platform presence. The audit typically takes between one and three weeks, depending on complexity.
(02)
Strategy
We present a plan in a format that allows decisions to be made — not one that impresses in presentations. We define priorities, success metrics, timelines, and responsibilities. On larger projects, this document becomes the governance reference for the following year.
(03)
Execution
We implement. The team that presented the strategy is the same team that executes it, which tends to reduce misunderstandings. We communicate progress weekly, clearly enough that no one needs to ask for explanations twice.
(04)
Continuous Optimization
Optimization is not a final phase. It is a routine. Monthly, we review performance, adjust priorities, and identify opportunities. Reports are short, factual, and designed to be read - not filed.
We don't have a manifesto. We have four habits that appear to be uncommon enough to merit mentioning.
A few observations on what distinguishes us
We promise slightly less than we plan to deliver
The industry has developed a remarkable ability to describe relatively ordinary activities using military vocabulary. We prefer to describe what we'll do, do it, and leave the enthusiasm to the client once the results justify it.
The person who sells is the person who delivers
In many agencies, the sales team and the production team speak slightly different languages. Not here. Whoever presents the proposal is whoever works on the project. This eliminates a surprising amount of misunderstanding.
We don't depend on a single platform
We work across SEO, GEO, PPC, social, email, automation, and AI because real businesses rarely thrive on a single channel. When a platform changes the rules - and they all do, regularly - the strategy continues to function.
We treat AI as a tool, not as a sales argument
Many executives speak about artificial intelligence with the same expression once reserved for blockchain and, before that, quinoa. We use AI when it produces measurable results. We don't when it doesn't. The distinction is less obvious than it appears.
We respond before the customer has to rephrase the question
We respond to requests within an hour, deliver proposals within one to two business days, complete PPC audits within twenty-four hours, and are available seven days a week. Not as a sales pitch - but as the bare minimum required for us to be taken seriously.
Investment
Values vary by project maturity, technical complexity, and sector competitiveness. For an accurate estimate, a thirty-minute conversation is usually enough.
One-off project
Projects with a defined scope, a fixed timeline, and clear deliverables. For companies that need a specific solution without a commitment to ongoing services.
Multiple channels managed as an integrated portfolio, with a shared strategy and common metrics. For companies that need a comprehensive digital presence.
A 360° digital marketing agency works across the various dimensions of a company's digital presence simultaneously: organic search (SEO), generative search (GEO), paid advertising (PPC), web design, social media, email, reputation, and automation. Coordination between channels is usually where most of the return is won - or lost.
Rates vary significantly. In Portugal, a monthly retainer for SEO or PPC with a competent agency typically falls between €1,500 and €8,000 per month. One-off projects such as corporate websites range from €3,000 to €25,000. Strategic consulting is typically billed hourly, between €80 and €250.
Initial signals typically appear between the third and sixth month. Stabilised results, in competitive markets, take between nine and twelve months. In local SEO with low competition, first results can appear within sixty to ninety days.
GEO (Generative Engine Optimization) is the optimisation for generative search engines — ChatGPT, Perplexity, Google AI Overviews, Gemini, Claude. It differs from traditional SEO by prioritising the probability of citation by language models rather than ranking on results pages. In 2026, the two disciplines work together.
GEO (Generative Engine Optimization) is the optimisation for generative search engines - ChatGPT, Perplexity, Google AI Overviews, Gemini, Claude. It differs from traditional SEO by prioritising the probability of citation by language models rather than ranking on results pages. In 2026, the two disciplines work together.
Yes. While based in Lisbon, we work with clients in Spain, France, Germany, Italy, and the United Kingdom. Meetings are conducted in Portuguese, English, or Spanish, depending on the client's preference.
The first conversation takes about thirty minutes and is free of charge. We discuss the current situation, objectives, budget expectations, and identify whether collaboration makes sense for both sides. There are no sales presentations at this stage.
Yes. We have eleven published case studies with detailed metrics. Some clients prefer confidentiality, so certain projects are presented anonymously. In private meetings, we share additional details whenever the NDA allows.
Yes, in applications where it produces measurable results: data analysis, assisted content generation, workflow automation, lead triage. We do not use AI to replace strategic judgement, nor to generate low-quality content at scale. The distinction is deliberate.
What clients say about Studio.351
Words from someone who entrusted us with a project
One of the highest-quality services I’ve ever received in Portugal. Their team takes care of everything needed to ensure you’re seen and recognized online: from the smallest details…
If you've read this far, you probably have a specific question in mind. Thirty minutes is usually enough to understand whether Studio.351 is the right team - or to help you find someone who is.
Studio.351 is a digital marketing agency based in Lisbon, with a presence in Switzerland. SEO, GEO, performance marketing, web development, and AI-powered automation.
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