7 Best SEO Agencies in Bulgaria (2026)

Its AI search pages describe a concrete deliverable, a business profile audit scored across about 50 factors grouped into 10 criteria, aimed specifically at how AI systems parse and trust business information. Its founder has also spoken on AI search optimisation at an external industry event, a training session for a European banking group's communications directors in April 2026, which is independent evidence the specialism is real. The Semrush agency directory lists it at 4.8 from 95 reviews.

You want an agency that can show a named audit method for AI visibility rather than a page that repeats the acronyms.

• Runs separate detailed service pages for AI search optimisation and for AI branding signals
• Describes a specific audit method, about 50 factors across 10 criteria groups, rather than general claims
• Its founder has presented on AI search optimisation at a verifiable external industry event

• The site does not use the acronyms GEO or AEO, so buyers searching those exact terms may not find it
• No pricing, founding year or named client case studies are published

Its AI optimisation page lays out a six-step method: an LLM visibility audit, content restructuring for retrieval, brand mention digital PR, original data creation, experience and trust signal building, and conversational rewriting. That level of named technical detail is stronger evidence of real delivery than most agencies in this market show.

You want a mid-sized Sofia agency with a named step-by-step AI visibility method bundled with web development.

• Publishes a specific six-step AI optimisation method rather than a general AI mention
• States a founding year and a growth history from three to about 15 staff
• States explicitly that nobody can offer full control over AI outputs, which avoids overreach

• No pricing is published for the AI optimisation service
• Client logos are shown but no named case studies with measurable results

It is one of the few Bulgarian agencies whose own service page names both GEO and AEO by their full terms and describes them as a new dimension of SEO aimed at being recommended and cited by ChatGPT, Perplexity and Gemini, rather than mentioning AI only in a blog post. The page displays client logos including Kaufland, Dormeo and Foodpanda, and the Semrush directory lists it at 4.4 from 51 reviews.

You want an agency that treats GEO and AEO as clearly named, sellable services rather than an experiment.

• Its own site explicitly names and defines both GEO and AEO as distinct services
• Displays client logos including several large retail and delivery brands
• 4.4 from 51 reviews in the Semrush agency directory

• No case studies or measurable results are tied to the named clients on the service page
• Pricing is only available after a consultation, so cost cannot be compared upfront

It is one of only two agencies in this market to publish actual prices for AI visibility work, tiered from 499 euros a month for small business sites up to 999 euros a month for large stores or media sites. Stated deliverables are an AI audit and strategy, content restructuring, schema markup implementation, AI-friendly content and ongoing mention monitoring.

You want to see an actual monthly price for AI optimisation work before contacting anyone.

• Publishes three-tier monthly pricing specifically for its AI optimisation service
• Lists concrete deliverables: audit, schema markup, AI-friendly content and monitoring
• Shows named client testimonials rather than only a logo wall

• Self-reported performance statistics, such as average traffic growth and retention, are not independently verified
• No founding year is published

It defines generative and answer engine optimisation by name on its own service page and treats GEO as part of its core brand rather than an add-on. It publishes three named tiers starting at 399, 799 and 1,539 euros a month, which is more pricing transparency than most in this market.

You want one Sofia partner for SEO, GEO and general digital marketing under a published monthly retainer.

• Publishes three named pricing tiers with starting monthly rates in euros
• States Google Partner status and an explicit policy against committing to specific ranking positions
• Defines GEO and AEO as named services on its own site rather than in a blog mention

• Its client count and the traffic and sales percentages in testimonials are self-reported and not independently verified
• No named case studies with before and after data appear on the site

It differentiates on a named crisis and recovery specialism, covering recovery after a traffic drop, repair after a hacker attack and penalty removal, rather than generic SEO. Its Clutch profile shows 5.0 across 23 verified reviews, a checkable count rather than a self-reported number.

Your problem is an existing traffic or ranking loss rather than growth from a standing start.

• 5.0 across 23 verified client reviews on Clutch
• Specialises in a named, differentiated niche rather than generic SEO
• Publishes an hourly rate band and a minimum project size on Clutch

• No GEO or AEO service is mentioned anywhere on the site
• Case studies reference industries rather than named client companies

It names actual client companies in the testimonials on its own SEO page and displays eight five-star Clutch reviews directly on site, which is more specific than the generic logo walls most peers show.

You want SEO folded into a broader internationally run performance marketing retainer rather than a Bulgaria-only specialist.

• Names real client companies rather than only showing logos
• Displays eight five-star reviews collected via Clutch on its own site
• States a specific managed ad budget figure and an average return growth of 38 percent

• No GEO or AEO service is mentioned anywhere on the site
• Operates jointly from Sofia and Odesa, so it is not a Bulgaria-only operation