A digital agency – what does it do and how do you choose the best one for your business?

A digital agency is a specialist company providing comprehensive support to brands online. Its work covers both marketing (e.g. advertising campaigns, SEO, content marketing) and technology (website design, UX/UI, automation). In 2025 a digital agency's role goes beyond "running ads" – it is a strategic partner helping companies build recognition, generate sales and scale their business on the basis of data and modern tools.

Why is a digital agency needed in 2025?

According to IAB Polska's 2024 report, online advertising spend in Poland exceeded PLN 8.3 billion, a 9% year-on-year increase. Over 70% of companies' advertising budgets now go to digital. That means an online presence is not an add-on but the basis of doing business.

Digital agencies bring together the competencies of many teams – from SEO and Ads specialists, through designers and UX designers, to data analysts. In practice that means a business owner does not have to coordinate several different suppliers but has one partner responsible for all online communication.

What does a digital agency do?

1. Advertising campaigns (performance marketing)

A digital agency plans and runs campaigns across various paid channels:

• Google Ads – search ads, Display network campaigns, remarketing.
• Meta Ads (Facebook and Instagram) – interest-based targeting, dynamic remarketing, sales campaigns.
• LinkedIn Ads – particularly important in B2B, letting you reach specific job titles and industries.
• TikTok Ads – a fast-growing channel, particularly effective in e-commerce.

According to HubSpot data (2024), companies using multi-channel (omnichannel) campaigns see on average a 91% higher customer retention rate.

2. SEO and content marketing

Search engine optimisation (SEO) is one of the pillars of digital work. The agency optimises the site technically, prepares content matched to user intent and builds a link profile. Content marketing covers blog articles, guides and expert content.

Example: an e-commerce company investing in SEO can increase organic traffic by 40–60% within a year, lowering customer acquisition costs compared with paid advertising alone.

3. Designing and building websites

A digital agency handles the whole process:

• UX/UI design – designing intuitive interfaces.
• E-commerce solutions – online stores on WooCommerce, PrestaShop, Shopify.
• Technology integrations – online payments, warehouse systems, Baselinker.
• Web analytics – implementing GA4, consent mode, tag manager.

4. Branding and visual identity

A digital agency often also acts as a branding agency – designing logos, brandbooks, visual materials for social media and brand communication. As a result the client gets a coherent image online and offline.

5. Analytics and automation

Without data you cannot scale a business. That is why agencies implement CRO (conversion rate optimisation), A/B tests and marketing automation (e.g. HubSpot, Mailchimp, SALESmanago).

What does a digital marketing agency's offer cover?

The offer is usually modular, allowing different elements to be combined:

• Digital strategy – market analysis, activity audit, campaign plan.
• 360 advertising – full campaign management across all online channels.
• SEO + content – search optimisation and expert content.
• Social media marketing – running profiles, creating content.
• Web development – building websites, online stores, UX/UI.
• Branding – logo, visual identity, rebranding.

In practice a client can choose one service (e.g. SEO) or opt for a 360 model in which the agency handles all of their digital marketing.

How do you choose a digital agency for your company?

When choosing an agency it is worth paying attention to:

1. Industry experience – an agency that has worked in e-commerce will understand an online store's needs faster than a software house.
2. Portfolio and references – check case studies and client reviews.
3. Transparent billing – avoid agencies that do not state their rates or hide the media budget.
4. Team and communication – do you have access to specialists or only to an account manager?
5. Technologies and certifications – e.g. Google Partner Premier, Meta Business Partner.

McKinsey experts point out that companies choosing digital partners on the basis of data-driven competence achieve up to 20% higher ROI from campaigns.

How much does working with a digital agency cost in Poland?

Costs vary depending on the services and the size of the company:

ServicePrice range (PLN net)Running Google Ads / Meta AdsPLN 2,000–6,000 a month + media budgetSEO + content marketingPLN 2,500–8,000 a monthBuilding a websitePLN 10,000–50,000 one-offAn e-commerce storePLN 20,000–80,000 one-offDigital strategy + brandingPLN 15,000–40,000 one-off

Average monthly digital marketing spend for SMEs in Poland is PLN 5,000–20,000, and for large e-commerce companies it can exceed PLN 100,000.

Digital agency trends for 2025

1. AI in marketing – content generation, predictive analytics, ad personalisation.
2. First-party data – own data matters more after the privacy changes (the end of third-party cookies).
3. Omnichannel and 360 advertising – combining many channels and coherent purchase journeys.
4. Video and short-form content – the dominance of TikTok, YouTube Shorts and Reels.
5. Sustainable marketing – growing pressure for ecological and ethical brand activity.

Frequently asked questions (FAQ)

What does a digital marketing agency's offer cover?
Most often digital strategy, advertising campaigns (Google Ads, Meta Ads, LinkedIn Ads), SEO, social media, web development and branding.

How do you choose a digital agency for your company?
Check its experience, portfolio, billing model, team and certifications. It is worth comparing 2–3 agencies and asking for specific cases in your industry.

How much does working with a digital agency cost in Poland?
From PLN 2,000 a month for basic Ads management, to several dozen thousand for full 360 advertising and web development.

Is a digital agency better than a freelancer?
An agency gives you access to a team of specialists (SEO, Ads, UX, content), while a freelancer usually works in one field. In a long-term partnership a digital agency provides more stability and scalability.

Does a digital agency only handle advertising?
No. It also covers branding, UX, building websites, analytics and marketing automation. It is a comprehensive approach to being online.

Summary – key takeaways

• A digital agency is a strategic partner supporting companies in online marketing and technology.
• The scope of services covers SEO, Ads, social media, branding, web development and analytics.
• The choice of agency should rest on experience, portfolio and transparency.
• The cost of the cooperation starts at a few thousand złoty a month.
• The trends for 2025 are AI, omnichannel, personalisation and the growing importance of first-party data.