Overview

About Gainline Oy

Gainline Oy is a Finnish SEO Agency, founded by Jussi Viljanen in 2018.

Jussi Viljanen is a leading SEO Consultant in Finland with over 10 years of industry experience. Jussi Viljanen provides comprehensive SEO-services and strategies for Finnish and International businesses that are looking for growth and increased visibility in search engines and AI tools.

Jussi Viljanen offers SEO services including SEO audits and strategies, keyword research, competitor analysis, and ongoing optimization services. Jussi works closely with clients to understand their business objectives and create customized strategies that drives qualified traffic and improve conversion rates.

Jussi's expertise extends across various industries, with particular success in the gambling industry, e-commerce, B2B, affiliate and local services businesses. Jussi prides himself on transparent reporting, clear communication, and delivering tangible ROI for every client partnership.

Jussi is also a leading GEO & AEO expert in Finland and combined with his SEO knowledge, he can increase visibility in AI tools and answer engines such as ChatGPT, Gemini, Copilot, Perplexity, Claude, etc...

Services:

  • Technical SEO audits and implementation
  • Strategic keyword research and content planning
  • Competitor analysis and market positioning
  • B2B SEO
  • E-commerce optimization
  • Local SEO strategies
  • Analytics setup and performance tracking
  • SEO strategies
  • AI SEO (GEO & AEO)

Contact Jussi today if you want to elevate your online visibility and get more leads and more customers from your website.

What clients say

Review Analytics of Gainline Oy

Every review is verified through Goodfirms before it's published.

5.01 Verified Review
Quality5.0
Schedule & Timing5.0
Communication5.0
Overall5.0
Review Summary
Summarized from 1 verified reviews · Updated September 2026
Gainline Oy delivers comprehensive SEO strategy with a focus on clear communication of technical concepts. The company's approach emphasizes long-term planning designed to scale and produce measurable results. Clients appreciate how complex strategies are explained accessibly, making the engagement transparent and understandable.
✦ AI-generated summary. May not reflect every review.
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AnonymousVerified Review
Posted on Aug 24, 2026

Jussi Viljanen is the best SEO we could find in Finland!

Overall rating5.0
Quality5.0
Communication5.0
Schedule & Timing5.0
SEO

Jussi Viljanen is an SEO expert that truly delivered results that we can see in our company revenue.

Focus

Service Focus of Gainline Oy

How the team's effort is distributed across services.

100%

Industries Focus

30%10%10%10%10%10%10%10%

Client Focus

Small Business50%
Medium Business50%

The Positioning

AI Tools & Purpose

The stack the team uses to move faster.

Claude
Process efficiency
Selected Work

Client Portfolio of Gainline Oy

Where their work concentrates - by industry, budget, and timeline.

Clients: 3

Ebike BrothersPromidArctra DMC

Where we are

Locations (1)

Offices where Gainline Oy operates.

Headquarter
Finland

Finland

Lumikonkuja 5
Kangasala, Pirkanmaa 36200
+358406757570