Your challenge isn’t just improving search engine visibility; it’s about finding an SEO agency that understands the unique landscape of B2B SaaS. Many agencies can increase your website traffic, but few can translate this into meaningful growth.
At Flow Agency, we know this struggle. For SaaS companies, the right SEO agency does more than optimize keywords – it aligns with your business goals and speaks directly to your market. It’s a strategic partnership, crucial for scaling your business.
So whether you’re a:
- Series B SaaS startup looking for an agency with a proven track record in your stage of growth
- Company with a lean marketing team needing an agency that excels in efficiency and agility
- CMO or VP of Marketing seeking an SEO partner that understands the intricacies of SaaS marketing
…this list is your essential guide.
This list cuts through the noise, guiding you to SEO agencies that truly understand and cater to the specific needs of SaaS businesses.
We focus on agencies that don’t just promise, but deliver real results, helping SaaS companies like yours achieve sustainable growth. And hey, this list doesn’t follow any particular order – it’s not a leaderboard. We value each agency for their own kick-ass way of fueling SaaS growth.
Table of Contents
The Elite 13: Leading B2B SEO Agencies Shaping SaaS Growth in 2025
Understanding that different SaaS businesses have varying needs, we’ve segmented our list into three distinct categories:
- Boutique Agencies: Tailored for businesses seeking personalized, niche-focused SEO strategies.
- Full Service SEO: Ideal for companies looking for extensive resources and a broad range of services.
- Content Marketing Agencies: Focused on agencies that excel in integrating SEO with high-quality content marketing strategies.
First let’s take a look at a quick overview of these agencies:
Company | Ideal for | Notable Clients | Company Size | Year founded |
Flow Agency | Tech startups, largely B2B SaaS | MailChartsBeekeeperBetterworks Detrack TrustRadius Lanes & Planes | 11-50 | 2018 |
Growth Sprints | SaaS companies aiming to grow from $10M to $100M in Annual Recurring Revenue (ARR) | Loop & TieDataboxSuperside Navattic | 2-10 | 2021 |
Demandwell | Industries like Medical & health, manufacturing, finance, education, HR & hiring, and IT & tech | QualifiSkytapCrunchbase Lessonly | 11-50 | 2019 |
Organic Growth Marketing | Category-leading SaaS companies | MosaicShipBobHotjarProfitWell | 2-10 | 2016 |
Directive Consulting | Tech companies looking for customized marketing solutions | LitmusAdobeAmazonUber Freight Snap Inc. | 51-200 | 2014 |
First Page Sage | Mid Sized companies and established startups, with a customer composition of approximately 65% B2B and 35% B2C | SalesforceLogitechVerizon Dignity Health | 51-200 | 2009 |
Hallam Internet | Businesses looking for expertise in paid media and organic marketing | CovertSwarm Jimmy FairlyHitachi Solutions Learning Pool | 51-200 | 1999 |
Siege Media | SaaS, Fintech and E-commerce | ZapierCasperAsanaAirbnbAudible Adidas | 51-200 | 2012 |
SmartSites | B2B, B2C, ecommerce, nonprofit, and industrial | AnexioSharemoneyAnko Products | 201-500 | 2011 |
Foundation Marketing | B2B SaaS companies | MiroKong Inc.Yotpo Deel | 11-50 | 2014 |
Animalz | Enterprises, startups, and venture capital firms | AirtableAmplitudeIntercom Amazon | 51-200 | 2015 |
Flying Cat Marketing | HR Tech | TestGorillaLeapsome Learnably Softr Hotjar | 11-50 | 2020 |
Red Cap | Management consulting, insurance/risk advisory, financial services, professional associations, and private equity firms | Aon BetterworksCareerPoint | 11-50 | 2011 |
Boutique Agencies: Tailored SEO Solutions for Niche Markets
1. Flow Agency: Best for SaaS & B2B businesses of all sizes
Notable Clients: MailCharts, Beekeeper, Betterworks, Detrack, TrustRadius, and Lanes & Planes

If you’ve made it past the subheaders and are actually reading into the text (kudos for that!), let me drop a little truth bomb: I’m Viola Eva, the founder of Flow Agency.
Why did I start this agency? I wanted to create the best darn B2B SEO agency out there. Ambitious? Absolutely. But then again, so is our approach to SEO.
At Flow Agency, we’re a crew of 12 – each one a maestro in their own SEO domain. Based in the buzzing heart of Berlin, we’re not just another agency on the block. We’ve orchestrated 81 SEO campaigns, each a symphony of strategy and success.
Our true passion? SaaS startups. We get them. We love them. We grow them.
We’ve launched not 10, not 50, but 81 SEO campaigns. Why so many? Because we can’t get enough of this stuff. We’re known for our love affair with SaaS startups – it’s like a match made in digital heaven. We tailor our strategies specifically for this dynamic sector, because let’s face it, one size never fits all.
So, if you’re an emerging software company looking for real, measurable SEO results, Flow Agency is where your search ends. We’re the go-to choice for companies who don’t just want to play the game, but change it.
H4: Industry Recognition

Here are some highlights of our achievements:
Winners:
- European Search Awards 2023: Best Use of Search in B2B – SEO for Enterprise SaaS (Flow Agency & Betterworks)
- US Search Awards 2023: Best Use of Content Marketing – Scalable Product-led Content Marketing (Flow Agency & MailCharts)
Special Mention:
- Global Agency Awards 2023: Nominated for Best Agency Culture
In total, we’ve been shortlisted for 10 prestigious awards, securing 2 wins, a testament to our dedication and expertise in the field.

Innovation and Trends
At Flow Agency we are actively navigating the integration of AI in search, particularly with Google’s new Search Generative Experience (SGE) announced in May 2022. This transformation has led us to:
- Rethink our content optimization strategies in response to the evolving search landscape shaped by generative AI, focusing on diversifying our approach across different media types.
- Emphasize creating content that not only ranks but also resonates, in light of Google’s Quality Guidelines now including Experience (E-E-A-T).
- Provide adaptive support to our clients, offering workshops, data analysis, and regular updates to help them refine their SEO strategies in this new era of digital search.
Services offered
At Flow Agency, we provide a comprehensive range of services to support your digital business’s growth in the SEO domain. Our expertise includes:
- SEO-Driven Content Marketing: We collaborate with content marketers to develop an integrated editorial calendar that showcases your unique expertise and story.
- Integration of Paid and Organic Strategies: Expert management of Google and Bing Ads to capture demand through highly targeted and integrated advertising campaigns.
- In-Depth Reporting: Custom monthly and quarterly reports tailored to your business goals, navigating tools like GA4, Tag Manager, and Data Studio.
- Specialties in SEO and SEM: Our services extend to Bing Ads, Google Ads, Landing Page SEO, Resource Libraries, ON-SERP Optimization, Pillar Page Design, Index Management, and Link Acquisition.
- Complete SEO Strategy Execution: From backlink building and keyword optimization to internal linking, we handle all aspects of your SEO strategy, allowing you to focus on content creation.
Thought Leadership

- Podcast Appearances: Flow Agency, particularly through Viola Eva, has been featured on episodes of notable podcasts such as “The Modern Marketer,” “MicroConf on Air” “Lion Zeal,” and “Search Engine Journal.”
- Articles Written: Flow Agency has authored insightful SEO articles featured on platforms like Search Engine Land, Weglot, Search Engine Journal, and many others, addressing diverse topics from video SEO to content strategy.
- Webinars and Presentations: We have also delivered valuable content in webinars and live presentations, focusing on topics such as content strategy, B2B SEO, and the art of writing effective SEO content.
- LinkedIn: We maintain a professional presence on LinkedIn, where we share insights, updates, and engage with the industry community. You can follow our activities and connect with us here.
- YouTube: Our YouTube channel features a range of content related to SEO, including webinars, tutorials, and industry insights. Access our YouTube channel at Flow Agency – YouTube
What our clients say
At Flow Agency, we’re proud to share that our clients consistently recognize and appreciate our efforts. They commend us for our structured approach, responsiveness, and holistic SEO solutions. Our work has led to significant achievements for our clients, including:
- A 114% increase in organic sessions in just one year. Read the case study here
- Achieving 162% growth in keywords and a 91% boost in organic sessions. Read the case study here.
- +41% conversions in paid search in 3 months. Read the case study here.
2. Growth Sprints: Optimal for Scaling SaaS Companies
Notable clients: Loop & Tie, Databox, Superside and Navattic

Growth Sprints is a specialized agency focused on aiding SaaS companies in scaling their revenue, particularly through Google. They employ a unique SaaS Growth Sprint Framework, conducting short, targeted marketing sprints to increase a company’s revenue. Their methodology is a four-part approach involving revenue-focused content, demand-focused content, product and content-led SEO, and authority building.
The service was created by Brendan, who leveraged his experience in leading growth teams at two agencies to develop this innovative approach, aiming to help clients double or triple their leads and Marketing Qualified Leads (MQLs).
Services offered
- Revenue-focused content
- Demand-focused content
- Product & content led SEO
- Authority building
Industry Experience
The expertise and success of Growth Sprints have been recognized and featured in prestigious publications such as Forbes, Inc., Ahrefs, and SEMrush, showcasing their authority and influence in the industry.
Brendan Hufford’s insights have further been shared on various platforms, including noteworthy appearances on podcasts and interviews. His featured conversation on the Outgrow Podcast delves into the nuances of digital marketing strategies tailored for SaaS companies. Additionally, his journey and professional insights are detailed in an interview on Growclass providing a deeper understanding of his approach and the philosophy behind Growth Sprints.
3. Demandwell: Best for Organic Growth and SEO Strategy Simplification
Notable clients: Qualifi, Skytap, Crunchbase, and Lessonly
Demandwell, founded in 2019, is a digital marketing platform focused on helping businesses achieve repeatable organic growth, primarily through SEO and content marketing strategies. It was officially launched in April 2021 by Mitch Causey, who serves as the CEO and co-founder, and Sam Smith, the CTO and co-founder.
The company specializes in turning organic search into a reliable source of revenue for B2B SaaS marketers, utilizing a blend of proprietary SEO technology and marketing services. Demandwell’s mission is centered on helping others grow, and it commits to this through its innovative approach to SEO and digital marketing.
Services offered
- SEO strategy development
- Content marketing
- Social media marketing
- Repeatable revenue generation through organic search
- SEO campaign management
- Proprietary SEO technology platform
Industry Experience
They host SEO workshops covering content strategy, Technical SEO, and more. These sessions empower professionals with practical insights and the latest SEO trends, enhancing industry standards while ensuring participants stay ahead in the ever-evolving digital landscape.
3. Organic Growth Marketing: Best for building Revenue-Driving SEO Programs
Notable clients: Mosaic, ShipBob, Hotjar, and ProfitWell
Organic Growth Marketing (OGM) specializes in constructing ICP-focused SEO programs that effectively drive revenue. Their approach involves forming in-depth partnerships with leading SaaS companies, focusing on driving qualified traffic from the client’s ideal customer profile (ICP).
OGM eschews one-off solutions like basic audits; instead, they integrate closely with client teams to deeply understand their buyers. This collaborative effort is aimed at co-owning the success of SEO programs that not only generate traffic but also build pipeline and revenue.
Services offered
- SEO strategy development
- Data-driven analysis including PPC, qualitative customer insights, competitive insights, and organic traffic data
- Diversification of SEO efforts
- Data segmentation and analysis
- Hypothesis formulation and execution
Industry Experience
OGM employs a CRO-driven approach to SEO, focusing on isolating factors as precisely as possible while recognizing the limitations of controlling every aspect in an imperfect environment.
Full-Service Agencies: Your One-Stop Shop for Comprehensive Digital Marketing Impact
5. Directive Consulting: Best for Performance Marketing
Notable clients: Litmus, Adobe, Amazon, Uber Freight and Snap Inc.
Directive Consulting, founded in 2014 by Garrett Mehrguth, is a leading Customer Generation agency for tech companies, particularly large-scale SaaS brands. Based in Irvine, California, the company has expanded to multiple cities, including Los Angeles, San Francisco, New York City, Austin, and London.
Directive’s founder, Garrett Mehrguth, is a thought leader in the industry, known for his commitment to bridging gender gaps in marketing technology and his extensive speaking engagements. The company has been recognized as a “Great Place to Work” in 2020 and was ranked among the top 500 fastest-growing companies in the U.S. in 2019.
Services offered
- SEO
- PPC
- Social Media Marketing
- Search Marketing
- Content Marketing Strategy
- Demand Generation
- Performance Marketing
- Revenue Operations
- Growth Marketing
Industry Experience
Innovation is at the heart of Directive’s operations. They commit $3 million annually to marketing R&D to develop new success strategies, ensuring they stay ahead in the ever-evolving digital marketing landscape. Their strategies include custom assessments, 1st-party data collection, TAM identification, and financial modeling using LTV:CAC models, which underscore their data-driven decision-making process.
6. First Page Sage: Best for Long-Term Lead Generation
Notable clients: Salesforce, Logitech, Verizon and Dignity Health
First Page Sage, founded by Evan Bailyn, an early SEO pioneer, is an esteemed SEO and thought leadership marketing company headquartered in San Francisco, CA. The company primarily serves midsized companies and established startups, with a customer composition of approximately 65% B2B and 35% B2C.
Evan Bailyn’s expertise, gathered over 15+ years of studying Google’s algorithm and content patterns, has positioned First Page Sage as a leader in the field. Their extensive archive of original research has made their website one of the most visited.
Services offered
- Full-scale website health assessment.
- Conversion rate analysis.
- Lead tracking and reporting system
- Demand Generation
- Digital Marketing
- Enterprise SEO
Industry Experience
First Page Sage, renowned for its innovative approach to SEO, has a rich history of industry experience marked by a shift from traditional high-ranking keyword strategies to a more holistic Long Tail approach. Their notable case studies like the collaboration with Cadence Design Systems and iGPS, showcase their ability to significantly improve keyword rankings and conversion rates.
7. Hallam Internet: Best for Building Brand Authority
Notable clients: CovertSwarm, Jimmy Fairly, Hitachi Solutions and Learning Pool
Hallam Internet, founded in 1999, is a forward-thinking digital marketing agency committed to ethical business practices. In 2021, they achieved B Corp status, affirming their commitment to social and environmental responsibility.
Known for its workplace culture, Hallam is ranked among the top 40 marketing employers in the UK. The agency is distinguished by its results-oriented approach and client satisfaction, earning recognition as a top-performing global agency by Google, and ranking in the top 3% of all UK agencies. Hallam’s ethos extends beyond mere profit-making; they aim to make a positive impact on their clients, employees, and the broader community.
Services offered
- Strategy
- SEO
- PPC
- Web Creative
- Brand
- Social Media Content
- CRO
Industry Experience
They offer dynamic services like AI-driven 301 redirect mapping, which uses natural language processing for enhanced accuracy and efficiency. Additionally, Hallam’s hybrid automation workflows blend the creative talents of copywriters with advanced neural networks, producing large volumes of optimized content for search engine visibility. This approach combines precision with innovation, transcending traditional operational limits and fusing strategy with creativity.
Hallam’s successful AI implementations range from client data segmentation to content customization, cementing their status as an industry leader in transforming AI concepts into tangible business assets.
They were the Grand Prix Winner at The Drum Recommended Digital Agency Awards, recognized for their excellence in categories like Search, Usability, Client Service, and Full Digital Service.
Their innovative work in shopping and display for Google Premier Partner Awards also earned them finalist positions, highlighting their achievements among the best digital marketing agencies in EMEA.
Additionally, their innovative use of data in PPC campaigns was highly commended at the Drum Search Awards, where they transformed ecommerce operations for education market players, leading to a substantial revenue increase.
8. Siege Media: Best for Content Marketing
Notable clients: Zapier, Casper, Asana, Airbnb, Audible and Adidas
Siege Media is a renowned content marketing agency specializing in SEO, content marketing, and public relations. Their team of creative professionals is committed to generating significant ROI for their clients, emphasizing the value of high-quality content in driving traffic, links, and rankings.
Their approach is data-driven, customer-centric, and highly effective, ensuring that their clients’ content not only reaches but also surpasses their competitors. Siege Media’s work contributes substantially to their clients’ online presence, making them a trusted partner for brands aiming for exponential growth and visibility
Services offered
- Content Strategy
- Content Marketing
- Link Building
- Digital PR
- SEO Consulting
- Graphic Design
Industry Experience
Siege Media has a proven track record in elevating brands in diverse industries. In the SaaS sector, they notably increased Zendesk’s traffic value by $731,924. Their expertise extends to Fintech, where they generated over $7.7 million in traffic value for The Zebra. In E-commerce, they significantly boosted online traffic for giants like Casper and Instacart, with Instacart’s traffic value soaring by 356%.
9. SmartSites: Best for Diverse Business Growth
Notable clients: Anexio, Sharemoney, and Anko Products
SmartSites is a digital marketing agency and web design company established in 2011 by brothers Alex and Michael Melen, who currently hold the positions of CEO and COO. The company boasts a team of over 365 staff members across six offices, specializing in building new websites, managing PPC campaigns, and implementing long-term SEO strategies.
Recognized for its rapid growth, SmartSites has been named in Inc. 500’s list of America’s fastest-growing companies for six years. It holds certifications as a Google, Microsoft, HubSpot, and Facebook Partner, and is a Zapier Certified Expert.
Services offered
- Blogging services
- Digital PR
- SEO copywriting
- Link building
- Technical SEO
- Pay-per-click advertising
- Custom website design
Industry Experience
SmartSites serves a diverse range of industries including medical, home services, legal, automotive, B2B, and B2C sectors. They’ve also been named one of Adweek’s Fastest Growing Agencies for 2023, showcasing their continued excellence and dynamic growth in the industry. And combined with a global team of over 350 dedicated employees and management of over $100MM/year in advertising spend, SmartSites showcases proven track records of success across various sectors
Content Marketing Agencies: SEO-Driven Content for Brand Amplification
10. Foundation Marketing: Best for Data-Informed Content
Notable clients: Miro, Kong Inc., Yotpo and Deel
Foundation Marketing is a content marketing agency established in 2014, known for its collaboration with ambitious B2B brands. They focus on creating and distributing content that inspires action and shapes culture both inside and outside organizations.
Their approach emphasizes the importance of content distribution, especially during highly competitive times. Foundation Marketing combines thorough B2B research with creativity to develop effective content strategies, create marketing assets, and distribute them efficiently. Their work is driven by a commitment to research and data, aiming to produce tangible results in content marketing.
Services offered
- Content Strategy
- Content Creation
- Content Distribution
- Content Marketing & SEO Audit
- Content Marketing Intelligence
Industry Experience
Foundation Marketing’s case studies demonstrate their prowess in driving significant results across diverse sectors. They successfully increased a SaaS company’s search impressions to over a million in a year. In another instance, their strategies amplified a university recruitment agency’s virtual fair attendance by 101% via paid media. Additionally, they enhanced a mobile app agency’s inbound leads by 133% through strategic SEO and content utilization.
11. Animalz: Best for Holistic Content Solutions
Notable clients: Airtable, Amplitude, Intercom and Amazon
Founded in 2015, the agency has rapidly grown and distinguished itself in the content marketing realm, particularly for B2B SaaS content. Animalz is known for its ability to connect virtual teams, streamline operations, and empower employees through effective content strategies and knowledge management.
This approach has enabled them to build a robust client base, including notable names in the tech and startup sectors. The agency’s growth and success are underpinned by a commitment to delivering tailored content solutions that resonate with their clients’ unique brand voices and business goals
Services offered
- SEO consulting
- Brand awareness
- Lead generation
- Product marketing
- Promotion and distribution
Industry Experience
Their success stories include collaborations with Frontify for organic growth, Exer Health for SEO development, and SupportLogic for content strategy. These collaborations showcase Animalz’s capacity to adapt and thrive in the dynamic content marketing landscape, serving a wide range of industries with impactful content solutions.
12. Flying Cat Marketing: Best for Best for Holistic Content Strategies
Notable clients: TestGorilla, Leapsome, Learnably, Softr and Hotjar
Founded by Maeva Cifuentes in 2020, Flying Cat Marketing stands out as a full-service SEO and content powerhouse, specializing in B2B SaaS. While they are adept across various tech sectors, their expertise shines in fields like HR tech, hospitality tech, and martech. Their approach combines in-house talent with a vetted network of freelancers to cover diverse areas including cybersecurity, fintech, and sales.
This agency is not just about skill, it’s about perspective. With 80% of its team members being women and representation from 15 different countries, Flying Cat Marketing brings experiences and viewpoints to the table, ensuring content that resonates across a global market.
Services offered
- SEO Strategy
- Content marketing
- Content strategy
- Organic growth
- Content writing and Marketing
Industry Experience
The agency claims to have achieved a 700% increase in yearly organic traffic for one client, driven an additional 80,000 visits to another client’s website within two quarters, and achieved a 548% year-over-year growth in blog sessions for another. These successes underline their expertise in driving organic growth and enhancing online visibility for their clients.
13. Rep Cap: Best for Versatile Content Marketing
Notable clients: Aon, Betterworks, and CareerPoint
Rep Cap is a B2B content marketing agency founded in 2011 by Mary Ellen Slayter. They specialize in working with professional service firms, like management consultants and financial advisors, and provide services tailored to their specific needs.
Their approach combines innovative thought leadership strategies with creative solutions, which include ghostwriting white papers and research reports, podcasting, video production, virtual events, and interactive web design. Rep Cap aims to deliver rapid results through advanced social media campaigns, PR initiatives, and email marketing programs, equipping their clients with the necessary tools for successful growth and scalable expansion.
Services offered
- Content marketing
- SEO
- Email marketing
- Graphic design
- Web design
Industry Experience
Their work spans various sectors, including management consulting, insurance/risk advisory, financial services, professional associations, and private equity. They specialize in thought leadership and employer branding, demonstrated through projects like elevating Talent Board’s global job candidate experience research and developing a comprehensive thought leadership campaign for Coursera.
Which SEO Agency is Right for Your Business?
Deciding on the right SEO agency can make a significant difference in your business’s online success. It’s not just about attracting more traffic; it’s about attracting the right traffic – users who are genuinely interested in what you have to offer.
If content creation and distribution are your primary needs, an agency like FlyingCatMarketing can provide specialized expertise, ensuring that your content not only reaches but also resonates with your target audience. On the other hand, if you’re looking for an all-encompassing solution that covers everything from SEO to web design, SmartSites could be the ideal choice, offering a blend of services to enhance both your site’s visibility and user experience.
However, if you already have a strong in-house content team and need to amplify your existing efforts, Flow Agency stands out as the perfect partner. We specialize in on-page and technical SEO, focusing on optimizing your current content and strategies. We don’t just attract visitors; we attract engagements that matter.
We work alongside your team, providing the SEO expertise that complements and elevates your in-house capabilities. With Flow Agency you get a strategy that aligns with your business objectives, turning your online presence into a significant asset. Contact us today!