Today, more than half of all marketers consider their efforts to be "ineffective". Working with the right tools and agencies is more essential than ever in an increasingly saturated and competitive B2B environment.
The choice between two agencies, Scalability vs Growth Room, becomes decisive in transforming your B2B prospecting into a real growth gas pedal.
Two opposing philosophies: the traditional agency model versus the innovative approach of the hybrid technology platform.
Comparative analysis: Scalability vs Growth Room
I. Scalability: the ultra-powerful outbound stack
Introducing Scalability
Since 2021, Scalability has been transforming French outbound via its innovative hybrid model.
Scalability is a SaaS platform combining multi-channel automation (email, LinkedIn, phone, WhatsApp), in-house human expertise and AI.
The combination of SaaS + AI + human approach has positioned Scalability as a benchmark B2B agency.
Unlike traditional agencies, Scalability offers direct access to its exclusive technology. This allows sales teams to retain total control of their campaigns, while benefiting from high-quality strategic support.
"The only growth solution I recommend. It allows you to exploit outbound 100%."
Edouard Uguen, Growth Lead @Pigment
"Scalability is all about strong expertise, on-the-spot support and lots of fun."
Léo Rousselière, Sales Director @Sopht
Target audience
Scalability is primarily aimed at SaaS startups such as Pennylane, PlayPlay and LumApps, aiming for rapid growth, tech scale-ups needing to industrialize their prospecting, and service SMEs wishing to establish a reliable acquisition channel.
These profiles appreciate the autonomy offered by the platform, while benefiting from strategic support.
Key features
The Scalability ecosystem is based on several technologies:
✅ Multi-channel automation : The platform manages sophisticated multi-channel sequences with behavioral triggers.
✅ Data enrichment: Via Captain Data and its in-house tools, Scalability produces constantly updated databases.
✅ Native CRM integration : bi-directional synchronization with HubSpot, Pipedrive, Salesforce for seamless sales follow-up.
✅ Advanced analytics: Real-time dashboards via Metabase to optimize campaign-by-campaign performance.
Advantages of Scalability
Scalability stands out for its multi-channel approach to prospecting, ensuring that prospects are contacted at the right time and in the right place. The combination of the SaaS model, AI, native integration and human expertise delivers a high-end, cutting-edge service.
Disadvantages of Scalability
❌ Tailor-made pricing may require prior discussion and validation time.
❌The absence of a free offer requires a direct financial commitment to test the service.
II. Growth Room: Full-service growth marketing expertise

Introducing Growth Room
Founded in 2020 in Paris, Growth Room has established itself as a French player in growth marketing, with 230+ customers supported and annual growth of 110%.
The agency of 35 experts structures its offering around four specialties: Paid Media, Outbound B2B, SEO & Copywriting, and Marketing Automation.
Growth Room applies a classic consultative methodology where each customer has a dedicated consultant to develop customized strategies aligned with their business objectives.
Growth Room testimonial - :
" We needed to create a scalable process for generating leads. Growth Room produced leads and distinguished MQLs from SQLs, enabling our sales team to convert more effectively. We have closed over 150 new deals and generate 35 MQLs per month. "
Target audience
Growth Room works with a wide range of clients, from startups raising funds such as Talent.io, Poiscaille and Mon Petit Placement, to established SMEs such as Prestashop and ManoMano, as well as major accounts such as Veolia, Michelin and Figaro Classifieds.
The variety of customers testifies to the agency's ability to adapt to different levels of commercial maturity.
The Growth Room approach
✅ Data-driven approach: each consultant has in-depth expertise in data analysis for complete autonomy in performance assessment.
✅ Full-funnel strategy: From SEO acquisition to paid campaigns, Growth Room covers the entire customer journey and all aspects of marketing + sales + ops.
✅ Personalized follow-up: stable team, weekly reporting and regular strategic reviews.
Advantages of Growth Room
Growth Room offers extensive expertise across all acquisition channels, in-depth strategic consulting, an experienced team with proven processes, and an integrated SEO and Paid Media offering.
Growth Room disadvantages
❌Agency contracts involve a minimum commitment of several months.
❌Campaign management is outsourced, which can reduce your day-to-day operational control.
❌Response and production times may be longer depending on the agency's workload.
Scalability vs Growth Room: Which B2B agency is right for you?

Choose Scalability if:
- You want complete operational autonomy
- Your priority is multi-channel outbound
- You have in-house teams to manage
- You prefer results-based compensation
Choose Growth Room if:
- You're looking for a global strategy (SEO + Ads + Outbound)
- You prefer to outsource the execution
- You need in-depth consulting support
- Your budget allows it
However, if you want to build a reliable and scalable internal growth engine, Scalability is the answer. Its unique hybrid model gives you the control, technology and targeted expertise to become master of your B2B outbound. It's the choice of autonomy and performance built to last.