The best AEO agency for B2B companies targeting multiple languages

A B2B company entering Germany and Spain needs research and content suited to buyers in each language. We recommend BeTranslated because its multilingual marketing offer assigns that work to native specialists. Its free audit also tests whether your brand appears in ChatGPT, Gemini and Perplexity answers in your target languages. That combination makes it our pick for a team buying language expertise alongside an initial AI visibility assessment.

Adapt Worldwide is the better choice when AI search belongs within a multi-region program covering paid media, localisation and sales content. Lean Labs suits a Seed through Series C SaaS company choosing HubSpot implementation. In that arrangement, your own in-market team or a separate specialist supplies the native-language research and writing.

What to check before hiring a multilingual AEO agency

Request a question list researched for each language, with the local search data and customer inputs behind it. BeTranslated's SEO method starts with separate keyword research for each market. For an AEO brief, add the buyer questions you want tested in each language instead of treating an English prompt list as the finished research.

A page written for the market starts from the terms and examples local buyers use, while a translated English page starts from the English framing. Name in the scope who writes each language, who reviews it before publishing, and whether any pages start as machine translation.

A one-time test gives you a baseline. It won't tell you whether your visibility in Spanish improved three months later. If you need reporting by market, the contract should name the AI-answer measures, languages, engines and reporting frequency, separately from search rankings and traffic.

When comparing cases, distinguish a site launch or search-traffic result from a change in AI mentions and citations. Check the language, measurement period and work included before treating a result as relevant to your program.

If you use HubSpot or plan to move to it, decide who will build and maintain the language versions. Keep that assignment separate from who researches, writes and reviews the content.

How BeTranslated, Adapt Worldwide and Lean Labs compare

BeTranslated pairs native-language content with an AI-answer audit

BeTranslated, a Valencia-based agency that started in translation, runs multilingual marketing through its BT Digital line. Its digital marketing page says native specialists in each market do the research and the writing, while one project manager keeps strategy, budgets and reporting together. Its multilingual SEO page treats SEO, AEO and GEO as one program run in every target language.

You receive a keyword map for each language. Its ongoing content service includes native writing, translation and adaptation, with a calendar based on local keyword research. Specify which pages will be written from scratch and which will be translated, along with the native reviewer for each language.

Its free multilingual audit includes the target-language AI tests and a separate comparison of your multilingual presence with three competitors per market. For B2B SaaS, it also checks indexing of localized documentation and help pages, plus localization of lead forms. You receive a written action plan after a specialist's review.

The audit produces a report; BeTranslated says implementation is discussed separately rather than starting automatically.

Its reporting service details SEO measures: local Google rankings updated weekly, plus traffic and conversions by locale. Native speakers prepare monthly summaries in seven languages. For the AEO engagement, make the prompt set and recurring AI-answer report explicit in the quote.

The quote page describes monthly retainers, with a minimum commitment proposed when the strategy calls for one. Its SEO offer separates a smaller one-to-three-country scope from an enterprise tier for sites in 10 or more languages. The enterprise list explicitly includes GEO and AI visibility programs. A smaller buyer should have the required AEO work named in the proposal rather than assume it is included in the SEO tier.

In its Valencia law firm case, updated May 19, 2026, BeTranslated describes replacing a Spanish-only site with Spanish, English, French and Russian versions. The SEO and PR engagement included native-language research, articles and legal guides. It distributed press releases internationally, including in Belgium, France and Canada. This is a language-production example for a legal practice; use a relevant B2B reference to assess how that process would handle your product terminology.

Adapt Worldwide fits AI search into a multi-region B2B marketing program

Adapt Worldwide offers international paid media, organic and AI search, analytics and marketing localisation. Its B2B service combines central planning for target customers and messaging with native specialists adapting campaigns in each market. It names SaaS, manufacturing and logistics as its B2B sectors.

Its AI SEO method researches prompts and cited sources before planning content and technical work. Adapt says the method adapts to each market, drawing on a network of SEO specialists, analysts and linguists. Its measures include Google AI Overview citations, brand mentions and recommendations, sentiment and conversions. Specify the country and language breakdown you need in the reporting.

Adapt's SaaS case describes an unnamed brand seeking more non-branded search traffic. The objective was an SEO strategy across 21 markets. Adapt describes local keyword research and a shared content plan as its approach. This supports the fit for a coordinated international SEO program, rather than a measured multilingual AEO outcome.

Its service menu also covers account-based marketing, sales content, event localisation and demo-video voiceover. That range fits a buyer coordinating several workstreams through one partner. Adapt describes the model as flexible, so select the work you need and have the proposal price that scope. It offers a free B2B strategy session.

Lean Labs builds the multilingual site and the AEO structure in HubSpot

Lean Labs is a HubSpot partner that runs AEO through HubSpot content, website, campaigns, analytics and CRM. It builds the question set from HubSpot sales calls, CRM insights, Search Console demand and competitor prompts, then creates answers, grounding pages and JSON-LD schema inside the CMS. Reporting puts brand mentions, citations, prompt coverage and share of voice next to AI referral traffic, contacts, deals and pipeline. Prompt tracking covers ChatGPT, Claude, Gemini and Perplexity.

For Virtru, a data protection company moving to HubSpot, Lean Labs built a modular website with dynamic language versions through HubDB. The case supports the multilingual website build that this buyer needs before publishing localized content. It is website delivery, not an AI-citation result.

This arrangement needs a clear content handoff: your in-market team or language specialist owns research and writing, while Lean Labs implements the HubSpot site and AEO structure. Its stated fit is Seed through Series C SaaS. Before combining the services, specify the language versions, who approves them and which prompts will be tested in each language.

Choosing by who does the native-language work

Choose BeTranslated when native-language research and content are the main purchase. Its offer joins that work with an initial AI-answer audit in your target languages. Set the ongoing AEO deliverables and measurement cadence in the proposal so the engagement continues beyond that first assessment.

Choose Adapt Worldwide when AI search needs to share a plan with paid media, sales content or other international marketing work. Its central planning and local specialists fit that coordination problem.

Choose Lean Labs when the implementation belongs in HubSpot and you already have native-language expertise. Give the writers responsibility for local content and Lean Labs responsibility for the agreed site build, then test the language versions and answer pages together before launch.

Other agencies to consider for multilingual search