SEO content strategy services: 10 best agencies to hire

Looking for the best agencies that offer SEO content strategy services?

You’re in the right place.

If you choose the wrong agency, you could waste money on blog posts that never rank, never bring traffic, and never turn into sales.

Many businesses think they are doing SEO, but they are just publishing random content without a clear plan.

In this blog post…

• You’ll discover 10 of the best agencies that provide SEO content strategy services.
• You’ll learn what each agency offers, their strengths, their limits, and who they are best for.

Let’s get into it…

1. Block Agency

Block Agency help other agencies build SEO content strategies that actually get results.

We understand agency workflows because we are an agency ourselves. We work async so you get updates without needing calls at awkward times, and our pros focus on quality.

If a client’s website isn’t structured well to rank or convert visitors, we also offer website design services so their content has a strong foundation to perform.

Pros of working with us

• We speak your language as another agency.
• Async work means smooth, flexible delivery. You don’t sit in meetings just for updates.
• Professional writers and SEO strategists focused on results.
• We also fix website structure and design to support content performance.

Cons of working with us

• We’re very focused on agency partnerships. If you’re a single business owner, our style might feel more geared toward agencies.
• Because we tailor strategies, costs can be higher than basic “content writing” packages.

Best for: Agencies and white-label partners that want a results-driven SEO content strategy with expert execution and optional website design support.

Reach out to us here: hey@blockagency.co

2. LinkGraph

LinkGraph builds SEO content strategies that match search intent and conversion goals, not just blog posts for the sake of it.

They start with keyword research, plan content that ranks and converts, and optimize for on-page SEO and meta tags.

Their tech tools also help track performance and refine strategy over time.

Pros of working with them

• Big team and tools, with lots of resources for research, creation, and optimization.
• Content is created around high-value keywords to attract the right audience.
• They help with on-page optimization and tracking performance.

Cons of working with them

• With bigger teams comes a more corporate feel. Not always as personalised.
• Pricing can be high for smaller clients.
• They offer lots of services, so strategy can feel broad rather than super narrow.

Best for: Mid-sized to large businesses or agencies that want an end-to-end SEO content strategy backed by tools, research, and performance tracking.

3. Targeted SEO

Targeted SEO uses a data-led approach where content strategy starts with deep research about your audience and your current SEO performance.

They focus on detailed content audits, keyword research, and creating a clear roadmap of what content to publish and when.

Pros of working with them

• Clear planning and reporting. You always know why they’re doing what they are.
• Strategy is bespoke, not templated.
• Content tied to real search intention and business goals.

Cons of working with them

• Their process is detailed, so it can take longer to see big changes.
• More suited to businesses willing to commit long-term than quick one-off fixes.
• They’re UK-based, so time zones can matter for some clients.

Best for: Businesses in the UK or Europe that want an SEO content plan tailored to their market and audience, with ongoing review and optimization.

4. Big Human

Big Human blends SEO content strategy with design and digital strategy.

Their approach starts with keyword and audience research, then crafts a plan that covers content structure, authority building, UX and performance… not just writing alone.

Pros of working with them

• Strategy is built with SEO + UX + design in mind. Content won’t live in a silo.
• They combine analytics with content planning for data-driven decisions.
• Offers support beyond just SEO content (design, growth, visuals).

Cons of working with them

• Because they’re a full service agency, content strategy can feel tied to broader campaigns rather than pure SEO content alone.
• Might be pricier for content-only needs.
• Bigger teams can feel less personal for smaller clients.

Best for: Brands or agencies that want SEO content strategy integrated with design and broader digital growth initiatives.

5. Content Clever

Content Clever focuses on both creating SEO content strategies and hands-on content writing.

They help clients build plans that decide what to write, how to structure it, and when to publish… with support written in simple, easy-to-understand language and guidance along the way.

Pros of working with them

• Strategy is practical and easy to follow.
• They also help with actual content writing if you need it.
• Friendly, supportive approach (good if you’re new to SEO).

Cons of working with them

• Strategy and execution can be slower if content demands are high.
• Mainly UK focus, which may affect timing for global clients.

Best for: Small businesses, founders, or teams who want clear SEO content guidance and optional writing support that’s easy to act on.

6. Modo25

Modo25 offers SEO content strategy as part of a wider organic search service.

They focus on understanding your audience, mapping keywords to different stages of the buyer journey, and building content that supports long-term growth.

They also connect content strategy with data insights, so decisions are based on numbers, not guesses.

Their approach looks at technical SEO, search trends, and content gaps before building a plan.

Pros of working with them

• Strong focus on data and research.
• Clear content roadmap based on real search demand.
• Works well with in-house marketing teams.
• Connects SEO with overall digital marketing.

Cons of working with them

• More focused on mid to large companies.
• May feel structured and corporate.
• Can be expensive for small brands.

Best for: Growing brands that want a structured, data-backed SEO content strategy tied to wider marketing goals.

7. SODP Media

SODP Media provides content strategy services that focus on planning, structure, and audience clarity.

They help brands define their message, identify content gaps, and build a plan that improves organic reach.

Their strategy work includes keyword research, content audits, and mapping out what type of content works best for each audience group.

They aim to align content with business goals, so you’re not just posting blog articles without direction.

Pros of working with them

• Clear planning before content creation starts.
• Focus on aligning content with business goals.
• Good balance between strategy and execution.
• Helps define brand voice and messaging.

Cons of working with them

• Not fully SEO-only focused; broader content strategy.
• May require ongoing engagement.

Best for: Brands that need both content direction and SEO structure, not just keyword lists.

8. SEO Strategi

SEO Strategi offers SEO and content strategy services with a focus on the Nordic market.

They help businesses plan content that ranks in search engines while staying relevant to local audiences.

Their service includes keyword research, competitor analysis, and building a content plan that supports authority in your niche.

They focus strongly on search intent and making sure content answers real user questions.

Pros of working with them

• Strong local SEO understanding for Nordic regions.
• Clear keyword and competitor research.
• Content built around search intent.
• Structured and simple planning process.

Cons of working with them

• More region-focused (mainly Norway and nearby markets).
• Smaller agency compared to global firms.
• May not suit brands targeting many countries at once.

Best for: Businesses targeting Norway or Nordic markets that want a focused SEO content strategy.

9. QuebecSEO.ai

QuebecSEO.ai offers SEO content strategy with a mix of AI tools and human expertise.

They focus on keyword research, content mapping, and performance tracking. Their goal is to build structured content that ranks well in search engines while saving time through smart automation.

They also support bilingual markets, especially English and French audiences.

Pros of working with them

• Combines AI tools with human review.
• Good for bilingual SEO strategy.
• Clear focus on rankings and traffic growth.
• Structured content planning process.

Cons of working with them

• AI involvement may not suit brands wanting fully manual work.
• More region-focused toward Canadian markets.
• Smaller brand compared to global agencies.

Best for: Canadian businesses or bilingual brands that want structured SEO content strategy with AI support.

10. Webhive Digital

Webhive Digital provides SEO content strategy services that focus on helping brands grow organic traffic.

Their approach includes keyword research, competitor study, content planning, and ongoing optimization.

They aim to build content strategies that attract the right visitors and guide them toward conversion. They also connect SEO with website performance and digital marketing.

Pros of working with them

• Clear keyword and competitor research.
• Focus on traffic growth and visibility.
• Offers broader digital marketing support.
• Practical strategy roadmap.

Cons of working with them

• SEO content strategy is part of wider services.
• May require long-term commitment.

Best for: Businesses that want SEO content strategy combined with wider digital marketing support.

What’s included in a SEO content strategy service?

By now, you should have chosen an agency that fits your business to handle your SEO content strategy. Great decision.

But let’s be clear about something…

SEO content strategy is not just about “writing blog posts.” It’s a full plan. A clear direction. A smart system built to bring the right people to your website and turn them into customers.

If you hire one of the agencies listed above, you should expect a series of services, including:

1. Website & content audit

Before building anything new, they first look at what’s already there.

Think of it like cleaning your house before decorating it. They check:

• What pages you already have
• What blog posts you’ve written
• Which pages show up on Google, which pages don’t
• Where traffic is coming from
• Where you’re losing visitors

Maybe you have 40 blog posts, but only 3 bring traffic. Maybe your service pages don’t rank at all. Maybe your content is good but badly structured.

This step helps them answer one big question: “Where should we start?”

Without this step, they would just guess. And guessing wastes money.

2. Keyword research

Now they go to Google, but not like normal users. They use tools to see:

• What people are typing
• How many people search for it
• How hard it is to rank
• What kind of content shows up

For example: If you sell website design for agencies, they don’t just pick random words like “website design.” They look for things like:

“website design for marketing agencies”

“best website layout for agency”

“how to structure agency website”

Good keyword research focuses on words people actually search, words related to your offer, and words that can bring real customers (not just traffic).

This is how they make sure your content brings buyers, not just readers.

3. Competitor analysis

Now they study your competitors. Not to copy them, but to learn from them. They check:

• What keywords they rank for
• What blog topics they write about
• Which pages bring them traffic
• What they are missing

Maybe your competitor ranks for 50 keywords you’ve never targeted. Maybe they have comparison articles that bring in leads. Maybe their content is ranking because it’s longer or better structured.

This helps answer: “How can we do better?”

Instead of starting from zero, you build smarter.

4. Search intent mapping

This part is very important.

Not every search means the same thing. Let’s look at two examples:

“Best CRM for agencies”

“Buy CRM software”

The first person wants comparison and reviews. The second person is ready to buy.

If you show a sales page to someone who only wants comparison, they will leave. If you show a long blog post to someone ready to buy, they may get tired.

So they match keywords with what people really want. This is called search intent mapping. It helps you create the right content for the right person at the right time.

This makes your content roadmap smarter.

5. Content plan/content roadmap

Now everything comes together.

You don’t just get “write 10 blog posts,” you get a content roadmap. This roadmap shows:

• What topics to write
• What order to write them
• What keywords to target
• What stage of the buyer journey each post supports
• How each piece connects

For example:

Month 1: Educational posts

Month 2: Comparison posts

Month 3: Decision-stage posts

This is part of your editorial strategy. Your editorial strategy explains:

• Your content goals
• Your audience
• Your voice
• Your publishing schedule

Without a roadmap, content feels random. With a roadmap, every article has a purpose.

6. Content structure guidelines

Now they don’t just say “Write about this topic.” They give structure. They explain:

• What the headings should be
• What subtopics to include
• What questions to answer
• Where to add internal links
• Where to add calls to action

This makes content easy to read, easy for Google to understand, and easy for visitors to take action

For example:

Instead of writing long blocks of text, they use: Clear headings, bullet points, short paragraphs, and simple language.

Structure helps content rank better and convert better.

7. On-page SEO optimization

This is the technical clean-up part.

They optimize:

• Title tags (what shows on Google results)
• Meta descriptions (the short preview text)
• URLs (short and clear links)
• Internal links (linking your pages together)
• Image alt text (describing images for Google)

These may look small, but small details matter.

If your title is weak, people won’t click. If your pages don’t link to each other, Google gets confused. If your URLs are messy, ranking becomes harder.

This step makes sure your content is search-friendly.

8. Performance tracking

Now the work doesn’t stop after publishing. They track:

• Keyword rankings
• Website traffic
• Page performance
• Leads
• Sales or conversions

They ask: Is traffic increasing? Are people staying on the page? Are they clicking your offers? Which posts work best?

If something isn’t working, they adjust. Maybe the keyword is too hard. Maybe the title needs improvement. Maybe the call to action is weak.

SEO is not “write and pray.” It’s “write, track, improve.”

Wrapping up

The right agency won’t just write blog posts. They will build a clear plan, target the right keywords, and help you attract people who are ready to buy.

Take your time. Look at your goals. Pick the agency that fits your size, budget, and growth stage.

SEO is not magic. It’s strategy, patience, and smart execution.

Choose wisely, and let your content start working for you.

Frequently asked questions