The 8 Best Fractional CMO Agencies for SaaS Companies [2025]

For B2B SaaS companies looking to accelerate growth without the overhead of a full-time executive hire, a fractional CMO can be transformative.

Finding the right fractional CMO partner isn't just about hiring someone with marketing expertise. You need a strategic partner who understands the unique challenges of B2B SaaS, from complex sales cycles to recurring revenue models. 

This guide will walk you through everything you need to know about fractional CMO services and help you evaluate the top agencies serving SaaS companies in 2025.

Why A Fractional CMO Is A No-Brainer For B2B SaaS Startups

A fractional CMO is a part-time marketing leader who oversees and directs all aspects of your marketing. If your company doesn’t have the budget to hire a full-time CMO or is struggling with demand generation, a fractional CMO can be the right answer for you.

A fractional CMO will take on all the responsibilities that a full-time CMO would, including:

• Developing and executing comprehensive strategies
• Driving growth and lead generation
• Enhancing brand and market position
• Aligning teams and processes
• Data-driven performance management

Having a fractional CMO reduces risk in your marketing hires and provides you with expert advice based on their agency framework and their SaaS expertise. They can scale your business without breaking the bank.

What to Look for in a Fractional CMO Services Agency for SaaS

You should identify eight key areas when looking for the right growth partner for your SaaS business.

1. Holistic SaaS Growth Expertise

   Your marketing can't operate in a silo. Look for a fractional CMO agency that knows how to work with your sales, product, and customer success teams.

   You need a partner who can connect all the dots - from getting new customers to keeping them happy and growing their accounts. When these pieces work together, you'll see real impact on your bottom line.

2. Playbook for Rapid Experimentation

   Marketing needs to move fast and learn faster. Your agency should have a clear system for running and measuring tests - whether it's A/B testing landing pages, trying new pricing models, or optimizing your conversion funnel.

   Quick learning cycles are key: test, measure, adjust, and scale what works. This keeps your budget focused on tactics that actually drive results.

3. Focus on Long-Term Metrics

   Quick wins are nice, but SaaS success is built on long-term metrics.

   Your agency needs to track and optimize for the numbers that really matter: ARR, CLTV to CAC ratio, and net revenue retention. These metrics tell the real story of your growth and show whether your marketing investment is paying off.

4. Content as a Strategic Lever

   Content isn't just blogs and social posts, it's a strategic asset that drives your entire marketing engine.

   Your agency should create content that establishes your authority, ranks for key terms, and moves prospects through your funnel. Good content brings in leads. Great content turns them into customers.

5. Demand Generation and Pipeline Ownership

   Lead generation alone isn't enough. Your agency should own the entire pipeline, from first touch to closed deals.

   That means creating targeted content for each stage, setting up proper lead scoring, and working closely with sales to turn MQLs into revenue. Look for an agency that takes responsibility for real business results, not just marketing metrics.

6. Customer-Centric Messaging Expertise

   B2B doesn't mean boring-to-boring.

   Your agency needs to understand that behind every decision-maker is a real person with real problems to solve. Your messaging should speak directly to their challenges and show how your software improves their lives. When you nail this, everything else becomes easier.

7. Agile Approach to Evolving Needs

   SaaS moves fast. Your marketing needs to keep up.

   Your agency should be ready to pivot strategies, test new channels, and adapt to market changes without missing a beat. This means having processes in place to spot trends, measure results, and make quick adjustments when needed.

8. Transparent Partnership

   Marketing success depends on trust and clear communication.

   Your fractional CMO should feel like part of your team, not just another vendor. This means shared goals, regular updates on what's working (and what isn't), and complete transparency on results. When both sides are aligned and accountable, growth happens faster.

The 8 Best Fractional CMO Agencies for SaaS Companies [for 2025]

After analyzing dozens of fractional CMO agencies that serve B2B SaaS companies, we've identified the top 8 that consistently deliver results for software companies. Each brings unique strengths to the table - here's what you need to know about them:

1. Kalungi – Best for Fractional CMO + Full-Service B2B SaaS Marketing Team

• Website: www.kalungi.com
• Focus Area: Full-Service
• Location: Seattle, WA  
• Case Studies: Customer Testimonials

Kalungi is the only outsourced B2B marketing team that combines strategic leadership with hands-on execution, all delivered by SaaS professionals who've done it before. Our proven T2D3 playbook and instant-on team approach assure 100% accountability for your marketing results.

Over 100 B2B SaaS companies have trusted Kalungi to deliver rapid customer growth, from early-stage to established players. Each engagement is led by an experienced CMO and executed by a flexible team of B2B SaaS experts who own your GTM strategy end-to-end - from identifying markets and customers to creating compelling content and optimizing winning campaigns.

Our pay-for-performance model keeps us focused on vital results, guaranteeing a team that delivers ROI and a dependable pipeline. Whether you need help with strategy, branding, content, automation, or full-service marketing leadership, we meet you where you are with the speed you need and the quality you deserve.

Ready to supercharge your customer growth? Let's talk about how our proven playbook can drive T2D3 results for your software company.

2. NinjaPromo – Best for Finance Expertise

• Focus Area: Full-Service
• Location: New York, NY

NinjaPromo is a marketing agency focused on B2B, Crypto, and FinTech companies. They are a full-service marketing team that work with a subscription-based approach to marketing.

They provide social media marketing, paid advertising, SEO, influencer marketing, PR, video production, branding, community management, website and mobile app development, and blockchain development. NinjaPromo is a versatile digital marketing agency focusing on digital engagement.

3. Able & Howe – Best for In-Source Marketing

• Focus Area: Fractional CMO
• Location: Vancouver

Able & Howe is an agency focused on in-source marketing for B2B companies. They integrate their marketing expertise into a company's internal operations to develop or enhance the in-house marketing team's capabilities.

They do this with their own In-Source Marketing Method. Their services include fractional CMOs, fractional marketing directors & strategists, and fractional marketing execution. Able & Howe helps businesses achieve sustainable, marketing-led growth from within.

4. Marketri– Best for Modernizing Strategies

• Focus Area: B2B marketing
• Location: Philadelphia, PA

Marketri specializes in creating marketing strategies for fast-growing B2B companies. They unify strategy, execution, analytics, and optimization to create a clear path for growth.

Their framework, Marketri Momentum Model (M3), is especially helpful for businesses that need to modernize their marketing approach and technology to grow. 

5. NoGood – Best for AI

• Focus Area: Full-Service
• Location: New York, NY

NoGood works with B2B, SaaS, and AI companies looking to grow. They use data and creativity to stand out. 

They have a multidisciplinary team of growth strategists, creatives, and data scientists, NoGood focuses on high-velocity experimentation to drive measurable outcomes. Their services include paid search, social media advertising, SEO, conversion rate optimization (CRO), lifecycle marketing, and performance branding.

6. SixMarketing – Best for Sales & Marketing Alignment

• Focus Area: Full-Service
• Location: Saratoga Springs, NY

SixMarketing is a full-service agency that aligns digital marketing, sales, and technology to drive client growth. Their services encompass sales and marketing, brand awareness, and lead generation, aiming to create awareness, build demand, and generate revenue.

They offer flexible engagement models, acting as a full-time partner or providing plug-and-play resources tailored to clients' needs, budgets, and goals.

7. Chief Outsiders – Best for Executives-as-a-Service

• Focus Area: Fractional CMOs
• Location: Houston, TX

Chief Outsiders is a nationwide "Executives-as-a-Service" firm that provides fractional Chief Marketing Officers (CMOs) and Chief Sales Officers (CSOs) to drive business growth. Their team comprises seasoned executives who have held VP or higher positions in various industries, offering strategic marketing and sales leadership on a part-time basis.

By aligning marketing and sales efforts, Chief Outsiders helps businesses achieve sustainable revenue growth. Their flexible engagement model enables them to act as an integrated part of the client's team, providing tailored solutions that address specific business challenges.

8. Digital Authority Partners - Best for Medium-Sized Companies

• Focus Area: Fractional CMOs
• Location: Chicago, IL

Digital Authority Partners (DAP) is a full-service digital marketing agency offering services to drive business growth and improve online visibility. They specialize in B2B branding and strategy, helping companies craft strong brand identities and strategic plans. DAP also provides content marketing services, creating valuable content to engage audiences and digital consulting to advise businesses on effective marketing strategies. 

For companies needing high-level marketing leadership, DAP offers fractional CMO services, ensuring expert guidance without the commitment of a full-time hire. 

How to Choose the Right Fractional CMO Agency for Your SaaS Company

Selecting the right fractional CMO partner is critical for your company's growth trajectory. The decision should be based on your specific growth stage and needs:

• MVP Stage: Focus on establishing market presence and attracting early adopters through targeted positioning and messaging.
• Product Market Fit (PMF): Emphasize customer retention strategies and building referral engines to drive organic growth.
• T2D3 Growth Phase: Concentrate on scaling customer acquisition while optimizing Average Revenue Per Unit (ARPU).
• Enterprise Scale ($100M+ ARR): Focus on optimizing Customer Acquisition Costs (CAC) and refining your Ideal Customer Profile (ICP) for maximum efficiency.

Beyond understanding your growth stage, consider these key factors:

1. Industry Expertise: While broad marketing experience is valuable, deep SaaS industry knowledge is crucial for understanding the unique challenges and opportunities in software marketing.
   
   
2. Proven Track Record: Look for agencies with documented success stories and measurable results in the SaaS space. Case studies and client testimonials can provide valuable insights into their capabilities.
   
   
3. Team Capabilities: Evaluate the expertise and experience of the team you'll be working with. In SaaS marketing, you need specialists who understand both marketing and software business models.
   
   
4. Data-Driven Approach: Your fractional CMO should prioritize metrics and ROI, using data to drive decision-making and strategy adjustments.
   
   
5. Cultural Alignment: The success of your partnership depends heavily on cultural fit and communication styles. Look for an agency that matches your company's values and working style.
   
   
6. Scalability: Choose a partner who can grow with you, adjusting their services and support as your needs evolve.

Kalungi Success Story: Over $4M in The Pipeline

CPGvision is a leading SaaS company in trade promotion management. They required a team to focus on their SEO, content, automation, and website re-design. 

Kalungi provided all of those areas, redesigning the brand, website,and improving CPGvision’s SEO and blog. Organic traffic increased by 603%, and first-page search engine results increased by 533%. Altogether, Kalungi sourced $4.7M in the pipeline.

“It all came out of the Kalungi process. Understanding customer personas, their pain points. They have a real instinct for strategy. They quickly pick up on what’s working and what’s not and how to course correct. They have the right balance of pushback versus hearing feedback. All these components are super important. It makes it easy for marketing to hit the target. That’s what gets results.” - Connie Whitehouse, VP Strategy.

Ready to Scale Your SaaS Business? Partner with Kalungi’s Expert Fractional CMOs Today!

While many fractional CMO options are available to B2B SaaS companies, the key is finding a partner who truly understands the unique challenges and opportunities in the software industry. 

You need more than just marketing expertise. You need a proven playbook for B2B SaaS growth, a team that's done it before, and a partner willing to be accountable for results.

This is exactly where Kalungi stands out. With our proven T2D3 playbook, instant-on full-service marketing team, and pay-for-performance model, we're uniquely positioned to drive rapid customer growth for B2B SaaS companies. Over 100 software companies, from early-stage startups to established players, have trusted us to deliver results.

Ready to supercharge your SaaS marketing in 2025? Contact us today to learn how our services can drive predictable, scalable growth for your software company.