Discover the Top 5481 SEO Companies. SEO is a crucial aspect of digital marketing, constantly evolving and in high demand for its ability to increase website visibility and drive traffic to businesses, creating a growing need for talented professionals. Compare top SEO agencies by reviews, ITP Score, capabilities, and portfolios to confidently choose the best fit for your project.
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5481 Companies Showing 121 - 140 Ranking last updated on: April 21, 2025
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At a high level, top SEO agencies help your website rank better on search engines like Google, but what that means is they help your business get found online by the right people. From keyword research and technical audits to content optimization and backlink strategies, these agencies handle everything that affects your site's visibility.
But the best ones go further. Agencies like WebFX, SmartSites, and Victorious (all listed on ITProfiles) take a strategic approach. They dive into your business goals, understand your customer journey, and tailor SEO campaigns that move the needle. At ITProfiles, we’ve seen that top agencies improve organic traffic by up to 230% within the first 6 months for high-growth clients, especially when paired with on-site content and technical fixes.
Choosing the right SEO agency isn’t just about rankings — it’s about results that align with your business goals. At ITProfiles, we encourage businesses to look beyond buzzwords and focus on actual client outcomes. That’s why we rank agencies based on verified client reviews, success stories, and long-term ROI.
For example, agencies like The SEO Works and SEOValley have a track record of boosting local search visibility for small and mid-sized businesses, while HigherVisibility and HigherSites Group shine in eCommerce SEO. If you're in SaaS or B2B, agencies like Directive Consulting bring deep industry insight to the table. You want a partner who understands your niche, communicates clearly, and reports on the metrics that matter — like leads, conversions, or actual revenue impact.
The right fit usually comes down to industry expertise, transparency in strategy, and a shared mindset about long-term growth.
SEO pricing can vary a lot depending on your goals, the agency’s expertise, and the competitiveness of your industry. On ITProfiles, we see most top-tier SEO agencies offering monthly retainers ranging from $1,500 to $10,000+. For example, SmartSites and Victorious typically start around the $2K/month mark for small to mid-sized businesses, while agencies like WebFX offer scalable plans based on traffic goals and keyword targets.
Project-based pricing is also common for businesses looking for a site audit or one-time optimization, usually between $3,000 and $30,000, depending on site size and complexity. The key thing to remember? The best agencies are transparent about where your budget goes and what kind of ROI you can expect in terms of leads, traffic, and sales.
Great SEO takes time, but the results can be a game-changer. Based on our data at ITProfiles, businesses working with top SEO firms see an average traffic increase of 120% within the first 6–9 months. Agencies like Directive and Thrive Internet Marketing are known for helping clients not just rank higher, but actually convert that traffic into leads and customers.
For example, eCommerce brands often see a 30–50% uplift in organic sales after strategic on-page optimization and technical SEO improvements. B2B companies might notice 2–3x more qualified inbound leads thanks to targeted content and better keyword targeting. The most successful outcomes come from agencies that focus on your broader business objectives, not just keyword rankings.
Start by identifying what you actually need — whether it's technical SEO, local SEO, content strategy, or all of the above. Then, dig into the agency’s portfolio and case studies. At ITProfiles, we’ve found that businesses have the best long-term success when they choose partners that understand their industry. For instance, SEOValley has a strong track record with SaaS brands, while Straight North consistently delivers for B2B companies.
Look for transparency in their process, clarity around KPIs, and real examples of results (not just promises). Bonus points if they tailor strategies to your goals rather than offering cookie-cutter packages. On ITProfiles, companies with the highest client retention rates are the ones that treat SEO as a partnership, not a transaction.
Honestly, any business with an online presence can benefit, but some industries see a much higher ROI. Based on ITProfiles data, companies in eCommerce, healthcare, legal services, SaaS, education, and local service businesses (like HVAC or dental clinics) get some of the strongest gains from top-tier SEO work.
Agencies like OuterBox specialize in eCommerce SEO and have helped clients double their online sales in less than a year. Meanwhile, Boostability works with thousands of local businesses to improve visibility in Google Maps and local listings. SEO is especially valuable in industries with long buying cycles or high competition, where ranking well directly impacts bottom-line revenue.
This one’s a biggie — and it’s where managing expectations is key. Based on patterns we’ve seen on ITProfiles, most businesses working with leading SEO agencies start seeing meaningful improvements in 3 to 6 months, especially for content-driven strategies and technical fixes.
However, competitive industries and brand-new websites might take closer to 6–12 months to reach page one rankings and sustained traffic growth. Agencies like Sure Oak and Delante typically provide monthly reporting that tracks keyword movements, traffic increases, and conversion growth, so you're not flying blind. The real payoff tends to kick in when SEO efforts compound — building trust, authority, and relevance over time.
SEO pricing can vary a lot depending on the agency’s experience, scope of services, and your specific goals. From what we’ve tracked on ITProfiles, most reputable SEO agencies charge between $1,000 to $5,000 per month for ongoing services. That range typically includes keyword research, on-page SEO, link-building, content creation, and monthly reporting.
For project-based work, like a full site audit or a content overhaul, you might pay anywhere from $2,500 to $20,000+, depending on complexity. For example, Victorious and Directive Consulting often work with mid-market and enterprise clients with larger budgets, while agencies like Thrive Internet Marketing and Ignite Visibility offer flexible packages for smaller businesses. Always ask about deliverables, timelines, and what’s included — the best SEO partners are upfront about ROI expectations.
The best SEO agencies don’t just chase keywords — they understand your business. They combine technical expertise with a strategic mindset and are great at communicating what they’re doing and why. Agencies like SEO Brand and WebFX consistently rank highly on ITProfiles because they treat SEO as a long-term investment, not a one-time task.
They stand out by using data to guide decisions, staying on top of algorithm updates, and building strategies tailored to your goals. Bonus if they have industry-specific experience or case studies that align with your business. Transparency, proven results, and proactive communication — those are the real differentiators.
Absolutely — and they should. SEO without quality content or strong backlinks is like a car without gas. Most of the top SEO agencies we feature on ITProfiles — including HigherVisibility, Victorious, and PageTraffic — offer comprehensive services that go beyond just technical audits.
They often build full content strategies, write optimized blog posts and landing pages, and handle white-hat link-building through outreach, PR, and guest posting. The key is alignment: content that ranks and converts. The best agencies will show you how each piece fits into the bigger SEO picture and measure its impact over time.