The 9 Best & Proven B2B SEO Agencies [+ AEO/GEO] in 2026

The 12 best B2B SEO agencies in 2026 are ContentMonk, Omniscient Digital, Directive Consulting, Siege Media, iPullRank, Onely, First Page Sage, Grow and Convert, Obility, Optimist, Draft.dev, and Embarque.

Choosing between them is the part buyers spend weeks on. The part that decides the result is where the retainer stops being responsible, and almost nobody asks. Both are below, with real prices, honest limits on every agency including ours, and the three checks that separate a real answer engine optimization (AEO) capability, also called generative engine optimization (GEO), from a repositioned one.

If you would rather skip the comparison and talk to a team that owns the leads coming from AI search and Google, get your AEO and SEO strategy.

TL;DR

Here are the best B2B SEO agencies for specific use cases:

You're looking for a proven B2B SEO agency that will own the entire process from beginning to end and hold itself accountable for the new revenue you're getting from SEO/AEO/GEO: Choose ContentMonk.

ContentMonk runs your entire SEO, AEO/GEO, and content marketing operations - from research and strategy to writing, distributing, and PR. Its main KPIs aren't new traffic; they're new leads and customers you get from organic or AI search.

It's different than other agencies because ContentMonk is the only B2B SEO agency with proprietary SEO & AEO/GEO software, giving us first-party AI data intelligence access to millions of prompts & keyword data. So all of our decisions are data-based.

Suitable for SMBs and enterprise companies that want serious results. It works with any type of B2B company (not limited to SaaS). Starting at $4000 per month.

Book a free strategy session with ContentMonk team.
You're looking for B2B software content built from customer research: Choose Omniscient Digital, which interviews your customers before it picks a keyword. More suitable for enterprise companies with bigger budgets, starting at $10,000 a month.
If you're looking for a B2B SEO agency to handle your organic and paid campaigns combined, choose Directive Consulting, the only full-funnel shop on this list here with paid media, organic, and PR under one roof.
If you're looking for the best B2B SEO agency focused mainly on backlinks, choose Siege Media, which builds original data studies and design assets to attract backlinks (among other SEO work). (10,675+ links for Zendesk).
Best for enterprises that need technical work so AI search can retrieve their content: iPullRank. Minimum engagement starts at $50,000.
Best for non-tech B2B: First Page Sage, whose work skews manufacturing, medical and legal rather than SaaS.
Best when you have traffic and no conversions: Grow and Convert, which helps you optimize your content for more conversions.
Best B2B SEO agency for developer tools and technical products: Draft.dev, where every piece is written by an engineer who works in that stack. Starting at $9,000 a month.
Best B2B SEO agency on a budget, for under $2,000 a month: Embarque, with deals starting at $1500/mo.

How we picked the best B2B SEO agencies?

We gave every agency one job to win, and we refused to give the same job to two of them.

That rule did most of the work. A list where four agencies are all "best for B2B SaaS content" tells you nothing, because the reason to pick one over another is never in the sentence. So each entry below names the specific buyer it beats the others for, and where two agencies competed for the same buyer, we kept the one with the better published evidence and replaced the other.

The four things we judged them on:

Who they actually serve, based on their client lists, published minimums, and company-size breakdowns on their Clutch profiles rather than their homepage.
What they do themselves. Advise or execute, write or brief, organic only or paid too, technical only or full service.
The mechanism behind the method: what exact methods are they using to get results for their customers, and is there any proprietary leverage over other b2b seo agencies in the space.
Evidence of how engagements actually go, from Clutch and Glassdoor reviews, published client numbers, and stated contract terms.
Are they holding themselves responsible for results? Many scammers take the money and deliver work, but no results. We included only the B2B SEO agencies on this list that hold themselves accountable for results. However, only one agency (ContentMonk) is directly responsible for the revenue/sales/customers. All the others report back to you only on SEO metrics.

Disclosure: This article is written on our own website, where we of course mentioned our own agency (ContentMonk). However, when we talk about ContentMonk or compare it with other agencies, we try to be as objective as possible. Our goal is to deliver results for our customers and make sure they get customers from AI and organic search. If that includes partnering up with us to do the work for them - perfect. If not, that's okay as well!

The 9 best B2B SEO agencies in 2026 [Compared]

#
Agency
The one job it wins
Who it serves
Published price

1

One team accountable for the entire SEO + AEO/GEO & content marketing process. Reports back to you on new customers rather than SEO metrics
B2B companies that want a B2B SEO agency responsible for getting them new customers.
Starting at $3,000/mo.
to get a custom quote.

2
Omniscient Digital
Content built from customer research
B2B software, roughly 11 to 200 staff
From $10,000/mo

3
Directive Consulting
Paid and organic against one pipeline number
Mid-market and enterprise
Not stated

4
Siege Media
Earning links at volume
Enterprise and mid-market, half of it non-B2B
Not stated

5
iPullRank
AI-search engineering at the embedding level
Enterprise only
From $50,000

7
First Page Sage
Non-tech B2B
Manufacturing, medical, legal, construction
From $10,000

8
Grow and Convert
Conversions per article
Anyone, including companies under $10M
From $10,000

11
Draft.dev
Content written by practicing engineers
Developer tool companies
From $9,000/mo

12
Embarque
Budgets under $2,000 a month
Companies under $10M
From $1,500/mo

1. ContentMonk - best B2B SEO agency for getting customers from AI search

ContentMonk is an SEO and AEO/GEO software & agency that helps companies get customers through Google & AI Search.

If you wanna do SEO and AEO/GEO in-house, there's software that helps you do that. If you want experts to handle it for you, that's where the ContentMonk Agency comes in.

When to choose ContentMonk Agency? Choose it if you want one team accountable for the leads/customers that come from AI search and Google, and you have no intention of building that capability in-house.

There are three main reasons why we're able to deliver big results and customers from Google & AI Search for our clients:

Decisions based on terabytes of data - ContentMonk Software tracks prompts, keywords, rankings, SERPs, and citations across hundreds of websites, every day. Because we watch that many sites at once, we see which formats start earning citations and which stop working weeks before it is obvious from any single account, and your plan changes based on evidence rather than someone's opinion of what Google wants this quarter.
We run the whole thing, A to Z - Our mission is to get our clients customers from Google and AI search. And the only way we can be accountable for the result is if we're accountable for the entire process. That's why ContentMonk Agency is handling everything necessary to deliver results - from strategy to writing, distribution, CRO, and even website optimization in specific cases.
Leads and customers are the KPI, to the point of being tiresome about it - We report on citations and rankings because they are leading indicators. We are judged on the pipeline & new customers that arrive - and everything we're doing is optimized towards getting you more customers.

With 70+ brands we've worked with (as an Agency), we're confident we can deliver results for most B2B companies.

Pricing. Engagements start at $4,000 per month.

Book a free strategy call to get the plan of attack and the exact quote.

2. Omniscient Digital

Wins when: you sell B2B software and you want the content plan built from what your customers said, rather than from a keyword export.

Omniscient starts with customer interviews and qualitative research and lets search data inform the plan rather than set it, which inverts the order most content agencies work in. It works almost exclusively with software companies, and its Clutch profile shows a client base concentrated between 11 and 200 employees, so this is growth-stage rather than enterprise. Published outcomes include 810% organic sessions for Jasper and $3.7M of pipeline for Smartling.

Limits. Slow delivery is the one complaint three separate Clutch reviewers raise independently, in one case explicitly tied to Omniscient not using AI and maintaining a manual editorial standard. That is a defensible trade, and you should know you are making it. The evidence base is also thin for the price: six verified Clutch reviews for a team of 11 to 50, against a $10,000 monthly floor.

Pricing. Full-service engagements from $10,000 a month.

3. Directive Consulting

Wins when: paid media and organic come out of the same budget and have to be justified against one pipeline number.

Directive is the only agency here running paid, organic and PR as one operation, and its Customer Generation model segments a target-account list and then measures and bids against qualified pipeline and CAC rather than lead volume. If your board asks what the whole marketing spend produced, this is the shape of agency built to answer that. 420+ brands including Amazon, Adobe, Cisco and Gong.

Limits. This is the one agency here where the staffing risk is documented on both sides. Glassdoor shows 2.9 out of 5 across 157 reviews, with 35% of employees recommending the company and 39% approving of the CEO, well below the industry average. On the client side, Clutch reviewers report team changes causing service disruptions and describe the pricing as high for smaller budgets. High internal churn plus client-reported service disruption is the clearest evidence in this set of the senior-pitch, junior-delivery problem.

Pricing. Not stated. Most projects fall between $10,000 and $49,999 on Clutch.

4. Siege Media

Wins when: the constraint is links, and you want them earned by assets rather than bought.

Siege builds original data studies, research and designed assets specifically to attract links, with in-house design, and the published numbers are the largest here: 10,675+ links for Zendesk, 958 organic links for Instacart. It is also the only agency on this list attaching AI-visibility figures to named clients (98% LLM visibility for Zendesk, 96% for Zapier), which gives you something specific to interrogate on a call.

Limits. Only about half of its work is B2B. Clutch shows ecommerce at 30% and hospitality at 20%, with a client list running to Adidas and Airbnb, so a niche B2B buyer should ask specifically about comparable accounts. Glassdoor sits at 4.0 with 87% recommending, but the cons are consistent and about capacity: a senior specialist describes wearing "a lot of hats: writer, SEO specialist, project management, client comm," and a current employee writes that "the burnout is REAL." On a retainer where continuity matters, that is worth asking about.

Pricing. Not stated. Clutch reports $100 to $149 an hour and a $5,000 minimum.

5. iPullRank

Wins when: you are enterprise, you have a real budget, and you want someone working at the level of how retrieval models actually select passages.

Relevance engineering is the most technically specific method in this article. The mechanism is embedding-level: measuring semantic similarity between your content and query vectors, analysing retrieval at the chunk level, and restructuring passages so the models select them. Mike King was Search Engine Land's 2025 Search Marketer of the Year. Clients include Target, American Express, MLB and the Wall Street Journal.

Limits. Zero Clutch reviews, at the highest published floor on this list. An agency founded in 2014 charging a $50,000 minimum with no verified client reviews means you are buying on reputation and published thinking rather than on anyone else's experience. Glassdoor is 3.3 across 16 reviews, with the cons clustering on long hours, turnover and shifting responsibilities, which matters more than usual at a team of 10 to 50 running multi-month programmes.

Pricing. Minimum project size $50,000.

6. First Page Sage

Wins when: you sell something that is not software, to a committee, over a long cycle.

First Page Sage is the one agency here whose center of gravity sits outside tech. Its Clutch industry mix is manufacturing 25%, medical 25%, and IT 20%, and its declared verticals run to construction, HVAC, insurance, staffing, and law firms. The method is commissioning content from named subject-matter experts and executives on the questions buyers research during evaluation, and it maintains an in-house editorial team rather than briefing freelancers. Clients include Salesforce, Verizon, US Bank, and ALCOA.

Limits. Zero Clutch reviews despite a team of 50 to 249 and a $10,000 floor, so there is no verified client-experience evidence. Glassdoor is healthy overall at 4.3 with 79% recommending, but the most frequently cited weakness is compensation and benefits, and historical reviews reference unexpected layoffs and turnover. For an agency whose entire product is expert-authored writing, staff saying pay lags the market is the relevant risk rather than a generic gripe.

Pricing. Not stated. Clutch reports a $10,000 minimum.

7. Grow and Convert

Wins when: you already have traffic and it is not turning into anything.

Pain point SEO rejects search-volume-led keyword selection and builds the list from bottom-funnel intent instead: category terms, competitor and alternatives terms, "best X" lists, and explicit use-case queries. Then it measures conversions per article rather than sessions. They publish the attribution behind it, which almost nobody does. It is also the only agency here where small business is a co-equal segment, at 45% of the client base alongside mid-market.

Limits. Their own published data is the fairest statement of the trade-off: in one worked example of 111 articles, roughly 15% of the articles produced 80% of the conversions. The model works by paying for a volume of articles that will not convert in order to find the ones that do, and their own writing does not frame that as a cost. Separately, a Clutch client asked them to "expand their expertise in the health space and get a wider set of writers" after their assigned healthcare writer left and quality became inconsistent, so ask about bench depth in a regulated vertical.

Pricing. Not stated. Clutch reports a $10,000 minimum.

8. Draft.dev

Wins when: your buyer is a developer and you have watched marketing-written content get ignored or ridiculed.

Draft.dev matches each brief to a working engineer in that exact stack, so a Kubernetes piece is written by someone who runs Kubernetes, then puts it through a developer review and a technical editor. The premise is that developer audiences reject content written by non-practitioners, which makes subject-matter credibility the lever rather than keyword optimization. Clients include Docker, Cloudflare, JetBrains and Auth0.

Limits. Delivery runs on a network of 300+ freelance engineer-writers rather than staff, and they disclose AI-assisted research and drafting on their own site, which is worth a direct question when the premise you are paying for is human engineer authorship. Independent evidence is close to nonexistent: no Clutch profile, two Glassdoor reviews total. The one substantive negative on record is a 2023 contractor review alleging a promised rate increase did not materialise, which is three years old and unverified, but it bears on the freelancer model.

Pricing. From $9,000 a month, with a three-month minimum.

9. Embarque

Wins when: your budget is under $2,000 a month and every other agency on this list has already priced you out.

This is the only one with a credible published entry point below $2,000. It works by productizing: fixed monthly asset counts and link quotas at each tier, sold as a subscription rather than a scoped engagement, which is what makes the price possible. Clients include VEED, Riverside and EmailOctopus.

Limits. Clients name reporting as the gap, wanting more frequent and detailed performance reporting rather than pulling it themselves. The evidence base is small and stale: nine lifetime Trustpilot reviews with none in the past year, and 13 on Clutch. And the arithmetic deserves saying out loud, since it is their own published tiers: at $1,500 a month for five to eight assets, the per-asset budget constrains how senior the writer and how deep the research can be. That is the trade you are making, and for a company at that stage it is often the right one.

Pricing. Lean $1,500/mo, Growth $2,800/mo, Scale $5,200/mo, Enterprise $10,000/mo. Three-month minimum.

How much should you pay for an experienced B2B SEO agency?

Published rates for mid-market B2B SEO land between $4,000 and $10,000 a month, with enterprise programs running from $10,000 to $40,000 and above.

Source
Figure

ContentMonk
Starting at $4000/mo

Optimist
Roadmap $7,500 one-time; advisory from $3,000/mo; full service from $4,000/mo

Percepture
Starter $3,000 to $5,000; Growth $5,000 to $10,000; Enterprise $10,000 to $25,000+

Omniscient Digital
Full-service engagements starts at $10,000/mo

Mid-market converges between $4,000 and $10,000 across most of those sources, so a budget in that band buys a serious conversation with most of this list.

How to choose the right B2B SEO agency for yourself?

Get on a call with the agencies that interest you, and ask them the following questions:

Where does your responsibility stop, and what metrics do you report on? - If they focus only on the SEO/keyword/AEO metrics, not a red flag per se, but you essentially want partners that will optimize their work towards conversions and customers, not vanity metrics such as traffic or AI citations.
Walk me through a comparable B2B client: starting traffic, starting pipeline, what changed, and what did not work - a specific story with tradeoffs beats a polished traffic graph.
How do you pick keywords for a company with low search volume? - Listen for ICP, buying stages, sales-call insight, and CRM data. Search volume as the primary input is the wrong answer for B2B.
How do you define success, and how does it reach our CRM?
Who works this account day-to-day, and will the people in this room stay on it?
How do you measure AI and answer-engine visibility beyond rankings?

If you notice some of these six red flags, run away like it's a matter of life and death:

Guaranteed rankings, or cheap bulk link packages.
A senior pitch followed by a junior handoff after kickoff, which is the most common complaint in B2B buyer threads.
Reporting that stops at traffic and rankings and never reaches pipeline.
A claim to specialize in B2B alongside a client list full of ecommerce and DTC.
An AI-search offer with no published measurement behind it. Of the twelve agencies here, one (Siege Media) publishes AI-visibility numbers against a named client, and our own entry does not yet either.
A scope of work that never names what the agency is accountable for. If the line is not written down, it sits at deliverables.

The Bottom Line

The agencies on this list are, for the most part, good at their jobs, and each beats the others at something specific. The ones that disappoint their clients usually did the work they were hired to do, which is the uncomfortable thing about this category and the reason a shortlist is worth less than an hour spent on the scope.

Ask every agency where their responsibility stops, and get the answer into the scope of work before you compare anything else.
Ask for a before-and-after on AI mentions for a named client, with the prompt list. One agency on this list publishes one.
Budget $3,000 to $10,000 a month for mid-market, less if Embarque fits and a great deal more if iPullRank does. Half of this list publishes no price, so for six of them the first call is the only way to find out.
Treat any list, this one included, as a starting shortlist. A referral from someone running your business model is worth more than all of them.
If you want AI search and Google run as one program by a team that answers for the leads and works off 500,000+ AI answers a day, get your AEO and SEO strategy. Engagements start at $4,000 a month.

FAQ

How much does a B2B SEO agency cost?
Published rates put mid-market engagements between $4,000 and $10,000 a month, with enterprise programs running from $10,000 to $40,000 and above and productized offerings starting nearer $4,000. Scope sets the number, and no market rate will predict it, so ask what the retainer buys in deliverables per month and whether content production is inside it. Most agencies in this category publish no price at all, so expect to ask.

What is a B2B SEO agency, and how is it different from a general SEO agency?
A B2B SEO agency works against long sales cycles, buying committees and keywords with low volume and high commercial intent, where a general agency usually optimizes for traffic and transactions. Keyword selection starts from the ideal customer profile instead of from search volume, success is measured in qualified pipeline reaching the CRM, and content has to serve several people evaluating the same purchase. An agency that cannot describe how it handles a buying committee is a general agency with a B2B page.

What is a GEO agency, and do I need one?
GEO stands for generative engine optimization, and the same work is sold as AEO, LLMO and AI SEO. Obility says as much on its own service page. Most B2B companies do not need a separate GEO agency, because the pages that earn AI citations are the pages that rank and answer questions well, so it is one job pointed at an extra surface. What you do need is an agency that can measure it, naming the engines, the prompt list and the cadence, and showing a before and after for a client.

Is SEO still worth it for B2B now that buyers use AI?
Yes, and the reason is mechanical: AI engines cite pages that rank and answer questions well, so the work that wins one surface largely wins the other. Running AI answers and Google rankings as one program is cheaper than running two strategies, and it is the cheapest way to stop optimizing for a surface your buyers have already left.

Should we hire an agency or build SEO in-house?
Below roughly $50M ARR, which is where The Starr Conspiracy puts the crossover, an agency or a senior consultant is usually faster and cheaper than a team. A capable internal function needs a senior operator, support around them and a tool budget, which is hard to justify against a $3,000 to $10,000 retainer that covers technical, content and link work. Above that threshold, volume and engineering proximity make an internal team worth the fixed cost, and many companies run a hybrid where strategy sits in-house and specialist execution is bought.