Agency comparison

Full Speed vs PLAN-B

Full Speed and PLAN-B are both credible shortlist options, but they fit different briefs. Full Speed is ranked #104 globally and is strongest for seo, while PLAN-B is ranked #100 and leads with seo. Both are based in Tokyo, Japan, so location is unlikely to decide the choice. The better fit depends on the services, client model and engagement band your brief requires.

Visit Full Speed Visit PLAN-B

At a glance

Side-by-side comparison

Comparison of Full Speed and PLAN-B
Metric	Full Speed	PLAN-B
Global rank	#104	#100
Location	Tokyo, Japan	Tokyo, Japan
Specialisations	SEO, Growth, Content	SEO, Content, Growth
AI SEO capability	Established	Established
SEO capability	Strong	Strong
Public evidence	1 source reviewed	1 source reviewed
Client fit	Mid-market	Mid-market
Price band	$$	$$
Best suited to	Full Speed is best suited to mid-market programs anchored in content strategy, with growth marketing in support.	PLAN-B is best suited to mid-market organisations putting content strategy at the centre of the search budget.
Considerations	Full Speed may be less suitable for enterprise procurement expecting global-agency infrastructure.	PLAN-B is less suited to complex multi-region programs better matched to larger shops.

Detailed comparison

How the agencies differ

Capabilities and focus

The two agencies overlap across SEO, Growth, Content, which makes a direct comparison useful. Full Speed is assessed as established for AI SEO and strong for established SEO work. Its distinctive listed capabilities include SEO, Growth, Content. PLAN-B is assessed as established for AI SEO and strong for SEO, with SEO, Content, Growth helping to distinguish its offer. These labels compare the range and public evidence visible during the August 2026 assessment; they are not guarantees of a particular ranking, citation or commercial outcome. Buyers should ask each agency to show recent work that matches the technical environment, market and search problem in the brief.

Working model and engagement

Full Speed is listed for mid-market organisations in the $$ engagement band. PLAN-B is listed for mid-market organisations in the $$ band. The dollar symbols are relative comparison bands rather than quoted fees, and a higher band is not a quality score. Scope, senior involvement, location, contract length and implementation support can all change the real cost. Because both agencies are listed in Japan, buyers can concentrate on delivery model and team fit rather than comparing two entirely different market contexts. Ask both agencies to price the same written scope so that retainers, projects and optional work can be compared on a like-for-like basis.

Evidence and expected output

Leading Search List reviewed 1 public source for Full Speed and 1 for PLAN-B. That evidence supports an editorial comparison, but it does not replace buyer due diligence. Full Speed and PLAN-B have different stated buyer fits. Before appointing either agency, request a named delivery team, a ninety-day plan, reporting examples and two case studies that resemble your organisation. For AI SEO, ask how the agency measures visibility in Google AI Overviews, ChatGPT, Gemini and Perplexity without separating that work from technical SEO, authority and useful content. The strongest proposal should connect outputs to a commercial objective and state which recommendations the agency will implement itself.

Choosing between them

Which agency fits your brief?

Choose Full Speed if…

Choose Full Speed when seo is central to the brief, the mid-market client model fits your organisation and its SEO, Growth, Content capabilities are more relevant to the work ahead.

Read the Full Speed review

Choose PLAN-B if…

Choose PLAN-B when seo is the priority, its mid-market delivery model is the better match and you need more emphasis on SEO, Content, Growth.

Read the PLAN-B review

Frequently asked questions

What buyers ask about Full Speed and PLAN-B

Is Full Speed better than PLAN-B?

Full Speed is ranked #104 globally and PLAN-B is ranked #100, but the higher-ranked agency is not automatically the better fit for every brief. Compare their primary services, client fit, evidence and proposed delivery team against the same written requirements.

What do Full Speed and PLAN-B cost?

Full Speed is placed in the $$ relative price band and PLAN-B in the $$ band. These symbols are comparison guides, not quotations. Confirm current fees, minimum engagement, currency and included services directly with each agency.

Explore the evidence behind this comparison.

Full Speed review PLAN-B review Best agencies in Japan SEO agencies Growth agencies

Comparison checked 26 August 2026. Rankings, service information and price bands reflect the 2026 assessment. Confirm scope, availability and current fees directly with each agency.