Agency alternatives · 2026
Core Optimisation is ranked #70 globally for International SEO, eCommerce, Content. This shortlist is for buyers who value that capability but want to compare a different service mix, market presence, delivery model or relative engagement band.
Read the Core Optimisation reviewShort answer
Claneo is the closest overall alternative in this assessment. The shortlist crosses markets because specialist fit is stronger than location alone. Across the group, the most relevant shared services are Content, International SEO, eCommerce. A replacement should solve a defined gap rather than simply offer a different name.
Ranked shortlist
Global #56 · Berlin, Germany
Claneo is a relevant alternative because it overlaps with Core Optimisation across Content, International SEO. It is listed for enterprise organisations in the $$$ relative engagement band, with established AI SEO capability.
Global #95 · Milan, Italy
Pro Web Consulting is a relevant alternative because it overlaps with Core Optimisation across International SEO, Content. It is listed for enterprise organisations in the $$$ relative engagement band, with established AI SEO capability.
Global #145 · Kraków, Poland
Harbingers is a relevant alternative because it overlaps with Core Optimisation across eCommerce, Content. It is listed for enterprise organisations in the $$$ relative engagement band, with established AI SEO capability.
Global #171 · Seoul, South Korea
Asiance is a relevant alternative because it overlaps with Core Optimisation across Content, International SEO. It is listed for enterprise organisations in the $$$ relative engagement band, with established AI SEO capability.
Global #177 · Seoul, South Korea
The Egg Korea is a relevant alternative because it overlaps with Core Optimisation across International SEO, Content. It is listed for enterprise organisations in the $$$ relative engagement band, with established AI SEO capability.
Before changing agency
Write down what the current agency relationship is not delivering. Separate capability gaps from unclear goals, slow internal approval, missing implementation resources or a brief that has changed. A new agency will not automatically solve a problem that sits inside the client organisation.
Ask each shortlisted agency to respond to the same business objective, site constraints, target markets, implementation responsibilities and evidence requirements. This makes price bands, proposed teams and timelines more comparable.
Confirm analytics ownership, account access, content and technical documentation, notice periods and the handover of work in progress. Search performance can be disrupted when decisions, redirects or measurement history disappear during a rushed transition.
Frequently asked questions
Claneo is the highest-ranked alternative in this shortlist because it shares relevant services with Core Optimisation and has a comparable buyer fit. The best choice still depends on the precise service, location, delivery model and engagement band required.
The shortlist prioritises agencies with overlapping specialisations, a similar client profile or price band, relevant market coverage and a nearby position in the 2026 global ranking. It is a fit comparison rather than a claim that each agency offers an identical service.
Only after defining the gap in the current relationship. Ask whether the problem is specialist capability, senior attention, implementation capacity, location, reporting or commercial fit. Compare all candidates against the same written brief before changing agency.
Alternatives checked 26 August 2026. The shortlist uses the 2026 assessment and public agency information. Confirm current services, availability and fees directly.