Top 3 SEO Writing Agencies in 2026

Hiring an SEO writing agency is a big bet. We're talking $10K-$30K+ per month. Get it right and you've got a machine that drives organic traffic and leads for years. Get it wrong and you've burned through a quarter's budget on blog posts nobody reads.

I've watched a lot of companies go through this decision. Here are three agencies that consistently do great work -- and what makes each one different.

1. Siege Media

Best for: Mid-market and enterprise SaaS companies that want high-quality, link-worthy content

Siege Media is the agency you hire when you want content that earns backlinks without begging for them. They combine sharp keyword research with content that's genuinely well-designed -- interactive tools, infographics, long-form guides that actually look good.

Approach: Siege bets on making content so useful and well-designed that people can't help but link to it. They target high-volume informational keywords and then create pieces that flat-out outperform whatever's currently ranking. Design and UX get as much attention as the writing itself.

Pricing tier: Premium. Expect monthly retainers starting in the $10,000 to $20,000 range, with enterprise engagements going higher.

Strengths:

• Excellent content design and visual assets
• Strong track record of earning organic backlinks
• Data-driven topic selection and keyword targeting
• Well-suited for competitive SaaS niches

Considerations:

• Higher price point than many alternatives
• Best suited for companies with established product-market fit
• Longer ramp-up time due to thorough research process

2. Animalz

Best for: B2B SaaS companies that want thought leadership content driven by product and industry expertise

Animalz doesn't do content mills. They're the editorial-first agency -- fewer pieces, but each one is designed to make your company look like the obvious expert in your category. They're especially well-known in B2B SaaS.

Approach: They'll embed with your subject matter experts and pull real insights out of them. The result is content that actually says something, not just another "Ultimate Guide to X" that rehashes what's already on page one. Their editorial bar is high, and they're not afraid to take opinionated angles.

Pricing tier: Premium to high-premium. Monthly retainers typically range from $15,000 to $30,000 or more depending on scope.

Strengths:

• Deep expertise in B2B SaaS content strategy
• Strong editorial standards and original thinking
• Content that builds genuine topical authority
• Strategic guidance beyond just writing

Considerations:

• Premium pricing limits accessibility for smaller companies
• Content velocity is lower than volume-focused agencies
• Requires internal SME availability for best results

3. Omniscient Digital

Best for: Growth-stage SaaS companies that want a content-led growth strategy tied to revenue

Omniscient Digital is the agency that won't let you measure success in pageviews alone. They tie everything back to pipeline and revenue. If your CEO asks "what did our content actually do for us this quarter?" -- Omniscient wants to have a real answer.

Approach: They map content to the full buyer journey -- not just top-of-funnel blog posts, but product-led content, case studies, and narrative pieces too. And they're serious about reporting. You'll know exactly how content is contributing to pipeline, not just traffic.

Pricing tier: Mid-premium to premium. Retainers typically start around $8,000 to $15,000 per month.

Strengths:

• Revenue-focused measurement and reporting
• Holistic content strategy covering SEO, product, and narrative content
• Strong frameworks for content-led growth
• More accessible pricing than some competitors

Considerations:

• Smaller team means capacity can be limited
• Best fit for SaaS companies with clear ICP
• May not be ideal for non-tech industries

A Note on LinkedIn Content

These three agencies are all great at what they do. But none of them do LinkedIn. If you're looking to build a consistent LinkedIn presence -- personal branding, executive thought leadership, team-wide social selling -- an SEO agency isn't the right tool for that job.

That's actually why I built TeamPost. It costs a fraction of an agency retainer and it's purpose-built for LinkedIn. AI-powered drafting from your own content library, scheduling, team management, Slack integration. For most professionals, that combo delivers way more LinkedIn ROI than outsourcing to a generalist content shop.

And honestly? There's no reason you can't use both. An SEO agency for your website content, TeamPost for LinkedIn. Different problems, different solutions.

If you're focused on LinkedIn specifically, check out the top LinkedIn writing platforms or learn what makes a good LinkedIn ghostwriter.