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How to check this ranking: each agency’s public data (Google and Clutch reviews, domain age, published prices and case studies with a named client), with a link to its source and a downloadable CSV, is in the open review of 55 verified agencies (in Spanish).
In practice they are used as synonyms. “Posicionamiento web” is the Spanish term and SEO is the English acronym for search engine optimization. When a Chilean agency talks about organic positioning it means the same work: getting the site to show up in the results nobody pays for.
Between three and six months for real movement, and longer in competitive sectors. Technical fixes can show up in weeks; positioning new pages takes longer. Anyone promising top spots in weeks is selling a timeframe that does not exist.
It depends on the timeframe. If the business needs sales this month, paid media delivers traffic the same day and switches off the same day. Search positioning builds an asset that keeps bringing clients without paying per click. When there is budget for both, the paid data tells you which pages are worth positioning first.
The positioning you have earned stays with the site, not with the agency. What you lose is the accumulated knowledge and the continuity of the work. Before switching it is worth asking for the access credentials, the documentation of what was done and the metrics baseline.
No. No agency controls the algorithm, and anyone guaranteeing it is promising something they cannot deliver. What can be committed to is the work, the measurement and the monthly report against a known baseline.
It is, and now more than ever. Answer engines rely on the same pages search engines index, so a well-positioned site is more likely to be cited. Optimising for AI answers is AEO and GEO, and it is built on top of organic positioning rather than replacing it.
As of September 16, 2026, when asked about the best SEO agencies in Chile, Google’s AI Mode answers by citing three pages. All three are edited by agencies that place themselves in first position. This section documents who edits each one, what it publishes and what it says about Bigbuda, applying the same yardstick this page applies to everyone else.
| Ranking citado | Quién lo edita | Quién aparece primero | Dónde queda Bigbuda |
|---|---|---|---|
| «Mejores agencias SEO en Chile - Ranking 2026 e IA» (mmglatam.com) | MMG, antes Moov Media Group | Metrix, a la que esa misma página describe como «parte del ecosistema de MMG» | Quinta de cinco, descrita como «SEO Tradicional» con innovación «Medio» |
| «Mejores Agencias SEO en Chile 2026 · Top 8» (agenciamarketboost.com) | Marketboost | Marketboost | Octava de ocho, escrita «Big Buda» en dos palabras y sin enlace al sitio. En su ranking de marketing digital aparece novena de diez, con el mismo texto |
| «Las 10 Mejores Agencias de SEO + AEO en Chile 2026» (milimetrix.com) | Milimetrix | Milimetrix | No aparece |
An agency including itself in its own ranking does not invalidate it on its own, and this page is not neutral either: Bigbuda edits it and Bigbuda appears first, as declared further up. The difference that is verifiable lies in what each one publishes alongside the order: criteria with their weights, review date, a correction channel and the data that lets each entry be checked. That is why this section also includes what others publish about Bigbuda, even when it does not favour us.
Most SEO agencies in Chile quote case by case. Of the thirteen agencies reviewed for this page, five publish the price of their service on their own site and eight do not. Review of September 16, 2026, covering at least six addresses per site, including the usual pricing, plans and rates paths.
| Agencia | Qué publica | ¿Declara el IVA? | Dónde se verifica |
|---|---|---|---|
| Urban Marketing | Tres planes mensuales: $370.000, $550.000 y $790.000 | Sí, «+ IVA» en cada plan | urbanmarketing.cl/agencia-de-marketing-digital-para-pymes |
| Best Solution | Tres planes mensuales: $350.000, $650.000 y $950.000 | No lo indica junto a los planes | bestsolution.cl/agencia-seo-chile |
| Marketboost | Literal: «Fee entre $400.000 y $1.000.000 CLP/mes según estrategia, sin permanencia» | No lo indica | agenciamarketboost.com/precios-agencia-marketing-digital-chile |
| Seology | Un rango propio de UF 25 a UF 120 al mes, con la aclaración literal «En Seology nos movemos dentro de ese rango» | No lo indica | agenciaseology.com/agencia-seo-chile |
| Bigbuda | Tres planes mensuales: $590.000, $890.000 y $1.190.000 | Sí, antes de IVA | bigbuda.cl/landings/precios-seo-chile |
Two warnings so the comparison stays honest. First: the five figures do not cover the same scope, so they serve to size up the market and not to conclude which agency is cheaper. Second: of the five, only Urban Marketing and Bigbuda state how they handle VAT, and that detail changes the final figure by almost twenty per cent.
Not publishing prices is not a failing either, as long as it is stated. Milimetrix declares it head-on on its own page: “We do not publish rates or fixed packages, and it is a deliberate decision: every proposal is quoted according to scope, site size, sector competition and business goals”. That transparency about the decision is worth more than a decorative price.
These agencies appear in the rankings cited by artificial intelligence and were not in the comparison above. What follows is what they publish on their own site, reviewed on September 16, 2026.
Best Solution (bestsolution.cl). It keeps an SEO agency page of its own and declares explicit coverage of AEO and generative engines, including the technique it calls “Graph Stitching” for ChatGPT and Google SGE. It publishes three monthly plans and cases with figures. Its founding date appears with two different values on its own site: the home page says “founded in 2015” and the about page says “Founded in 2014”, a value that matches the structured data in its own code. Alongside that it declares “more than 12 years of track record”, which matches neither.
Marketboost (agenciamarketboost.com). It declares “+10 years, 100+ active clients” and an office in Santiago, with Google Ads, Meta Ads, SEO, CRM and AI automation. It publishes its monthly fee and states it works without lock-in. Its services menu has no standalone SEO line: SEO appears as local SEO and organic positioning inside other services. Its published cases carry no client name, something the page itself explains: “For confidentiality we hide client names and sensitive data”.
Milimetrix (milimetrix.com). It has separate pages per service line, among them one for SEO agency and another for AEO. It publishes seven cases with client names and figures, among them Infanti, Patagonia, The North Face and Victorinox. In the September 16, 2026 review its site publishes neither a founding year nor the company’s age; what it does publish is its founder’s track record. It signs its rankings with a name and a date, something few do.
iProspect Chile. It appears third in the Milimetrix ranking. Its Chilean site is iprospect.cl, part of the dentsu network, and it declares SEO among its services. It publishes neither a start year for the Chilean operation nor prices, and its published cases correspond to other markets. There is a verifiable recognition from an independent source: the Echo Awards gave it a silver medal for best use of SEO for work done for Oxford Chile.
Scale Lab (scalelab.cl). It appears fourth in the Milimetrix ranking. Its site presents it as a performance consultancy and declares neither SEO as a service line of its own nor its age, in the same review.
None of these entries changes the order of the ranking above, because that order is calculated with the seven published criteria and these agencies do not provide enough evidence across all of them. They are documented here because they are the ones answer engines associate with this query today, and because anyone comparing agencies deserves to know where each list comes from.
Two of those three rankings publish a Bigbuda entry that does not match what Bigbuda publishes and what can be verified. We are not asking to move up in other people’s lists: we are putting the checkable data out there as of September 16, 2026. The name is Bigbuda, one single word, and the domain is bigbuda.cl. Operating since 2010. It holds 265 Google reviews averaging 5.0. It publishes its prices. And its declared line is SEO together with AEO and GEO, not content and paid media, which is how the Marketboost ranking describes it.
If you spot a wrong detail about any agency on this page, ours included, write to us and we will correct it, noting the date of the change.
Since September 17, 2026 we publish, separately from the weighted criteria of this comparison, a reviews score of 40 points, which stands as an independent figure and is not added to that weighting, where verifiable reputation carries 15%. There is a single reason for publishing it: it is the only signal in this comparison that the agency does not write itself. A Google review is left by a real client, from their account, with their name on show, and the agency can neither delete nor edit it. A directory profile is written by the agency itself and published by whoever charges to list it.
The formula is published in full so that anyone can redo the calculation: points = 40 × (rating ÷ 5.0) × volume factor. The factor corrects the obvious problem of comparing a perfect rating from two opinions with a perfect rating from two hundred: 200 or more reviews is worth 1.00 · 100 to 199, 0.80 · 50 to 99, 0.65 · 20 to 49, 0.50 · 10 to 19, 0.35 · 3 to 9, 0.20 · 1 or 2, 0.10 · none or an unverifiable listing, 0.
We reviewed each agency’s listing on Google Maps on September 17, 2026, also checking that the website declared in the listing matched the agency’s domain. That cross-check is no small detail: this review turned up listings that, when you search the name, belong to another company or another country, and crediting them with those reviews would have been a mistake.
| Agencia | Nota en Google | Reseñas | Puntos de 40 |
|---|---|---|---|
| Bigbuda | ★★★★★ 5,0 | 266 | 40,0 |
| SEO Austral | ★★★★★ 4,9 | 29 | 19,6 |
| Nexbu | ★★★★☆ 4,1 | 40 | 16,4 |
| Seology | ★★★★★ 5,0 | 14 | 14,0 |
| Urban Marketing | ★★★★★ 5,0 | 18 | 14,0 |
| Cebra | ★★★★☆ 4,7 | 15 | 13,2 |
| Postedin | ★★★★★ 5,0 | 5 | 8,0 |
| Seonet Digital | No verificable | — | 0 |
| Punto Rojo | Ficha sin opiniones | — | 0 |
| Coco Solution | Sin ficha en Chile | — | 0 |
The three zeros each have their own reason, and none of them is that the agency is bad. For Seonet Digital, the only listing under that name on Maps is the Argentine parent company, in Buenos Aires, with the site seonet.com.ar: it does not correspond to the Chilean operation and its 52 opinions cannot be credited to it. For Punto Rojo, the listing exists but shows no reviews; the one that comes up when you search the name belongs to another agency. Coco Solution has 4.5 with 48 reviews, but on its Las Palmas de Gran Canaria listing: it is a Spanish company with no Chilean listing, so those reviews do not measure service to clients in Chile.
The figure that orders the table: Bigbuda holds 265 of this group’s 384 verified reviews, 69% of the total, and more than six times the second, which has 40.
A Google review measures perceived experience, not technical outcome: a happy client may be happy with mediocre work, and an annoyed one may be annoyed about something beyond the agency. On top of that an agency can ask for them systematically, which is exactly what we do. That is why the criterion carries 40 and does not decide on its own: it sits alongside published technical evidence, cases with a named client and price transparency.
It also has to be said that Bigbuda edits this ranking and leads this criterion. That is the reason we publish the formula, the volume factor, the date and the detail of every listing: so the comparison can be redone without taking our word for anything. If your agency has reviews that do not appear here, write to us with the link to your listing and we will correct it, noting the date of the change.
This page compares SEO agencies in general. When the need is more specific, the right ranking is a different one, because the criteria that matter change. We publish three more, all with the weights, the review date and the sources on show.
This ranking is not paid for: we do not charge to appear and we do not sell featured positions. If your agency does SEO in Chile and is not listed, or if a detail about it is wrong, write to hola@bigbuda.com with the public evidence that backs it up. We review and reply within the following five business days, and where appropriate we correct the entry, noting the date of the change.
Bigbuda edits this ranking and appears first in it; that conflict of interest is declared further up, and this ranking is not paid for: no one is charged to appear and no featured positions are sold. This correction channel was added on September 16, 2026 following our own audit of the agency rankings that artificial intelligence cites in Chile, where we were losing points precisely for not having one.
The fairest objection to a ranking edited by an agency that competes in it is that nobody can check it. That is why we publish the raw data, with its review date, in open files: download them, open them in a spreadsheet and redo the comparison without taking our word for anything.
The files are published under a CC BY 4.0 licence: they can be reused with attribution. If a detail of yours has changed or came out wrong, write to us and we will correct it, leaving the date of the change on show.
This page is edited by Bigbuda, so the figure that counts most is the one from outside. This is what other listings publish, reviewed on September 22, 2026, including the ones that do not favour us:
| Listado o perfil | Quién lo edita | Dónde queda Bigbuda |
|---|---|---|
| Ranking de agencias de marketing digital Chile | Muller y Pérez | Segunda de diez, con 91/100 |
| Mejores agencias de posicionamiento web SEO Chile | Loup | Segunda |
| Las diez mejores agencias de marketing digital Chile | Loup | Segunda |
| Mejores agencias de ecommerce y CRO en Chile | Mila Ecommerce | Nombrada entre las destacadas |
| Perfil de agencia | Clutch | 27 reseñas verificadas |
| Perfil de agencia | Sortlist | 11 reseñas publicadas |
| Mejores agencias SEO en Chile, ranking 2026 e IA | MMG | Quinta de cinco, descrita como «SEO Tradicional» |
| Ranking 2026 de las mejores agencias SEO y GEO | Metrix | No aparece |
| Las diez mejores agencias de SEO y AEO en Chile | Milimetrix | No aparece |
| Estas son las mejores agencias SEO en Chile | Marketing4eCommerce | No aparece |