Lead generation has become more challenging than ever. With a crowded B2B landscape and customers becoming highly selective about the products and services they choose, traditional methods of outreach often fail to deliver results. According to Salesforce, 72% of B2B buyers expect personalized engagement tailored to their needs, which is why generic email campaigns no longer cut it.
This is where tools like Clay come into play. In 2025, personalization and AI-powered scraping are no longer optional—they’re essential for businesses that want to scale their outreach and make meaningful connections. But even with that, achieving success requires expertise.
That’s why partnering with the right Clay lead generation agency can make all the difference, helping you leverage Clay’s AI capabilities to create hyper-targeted campaigns, automate workflows and maximize ROI. In order to help you choose the right one, we’ve compiled a list of the 10 best Clay lead generation agencies to consider in 2025.
Also included is a short guide on selecting the right Clay experts for your unique requirements. So what are you waiting for?
Let’s jump right in.
What is Clay AI? – And Why is it a Game-Changer for B2B Outbound?
Clay has transformed how businesses approach GTM and lead generation campaigns. While traditional prospecting methods often rely on manual data scraping, generic messaging and time-intensive follow-ups, Clay automates them by adding a layer of AI-powered intelligence that enables businesses to achieve personalized, scalable and efficient outreach.
Having spent significant time working with Clay, here are 5 key reasons why I think it’s a game-changer for the B2B outbound world:
1. Dynamic data scraping at scale
Traditional lead generation often involves hours of manual data gathering, leaving room for outdated or irrelevant information to creep into campaigns. Clay changes the game by allowing users to extract enriched data from multiple sources, including:
- LinkedIn: Scraping public profiles for up-to-date professional information.
- Company databases: Gathering insights about company size, industry, and growth trends.
- Custom web scraping: Accessing specific data points like reviews, job postings, or tech stack details from targeted websites.
With these capabilities, Clay lead generation agencies can build precise, hyper-targeted lead lists that are always current.
2. Hyperpersonalized campaigns
Hyperpersonalization is the cheat code for delivering exceptional customer service in 2025. Buyers, especially in B2B, are no longer responding to ‘cookie-cutter’ or bulk email campaigns. As a salesperson, you need to craft messages that resonate with the most pressing pain point of an individual.
Clay addresses this by enabling users to create hyper-personalized cold email campaigns at scale. Partnering with a Clay lead gen agency can help you hyper-personalize your outreach, thereby transforming your outbound engine.
3. Workflow automation
Repetitive tasks—sending follow-ups, updating CRM data, or creating lead lists—consume a significant amount of time for sales and marketing teams. Clay streamlines these processes with advanced workflow automation, allowing teams to focus on strategy rather than execution.
Key automation features include:
- Scheduled Follow-Ups: Automatically sending personalized emails at the right intervals.
- Real-Time CRM Updates: Seamless syncing with platforms like Salesforce or HubSpot ensures data consistency.
- Dynamic Campaign Adjustments: Automatically pivoting messaging based on recipient behavior, like email opens or link clicks.
With McKinsey highlighting how automation can save businesses up to 30% of their time and shift their focus towards more strategic, high-impact activities – Clay expert agencies use these capabilities to maximize efficiency and scaling personalization.
4. Seamless integrations
One of the most powerful features of Clay is its ability to integrate with a wide range of tools, ensuring a unified and streamlined workflow. Whether you’re managing customer relationships, running email campaigns, or analyzing data, Clay integrates effortlessly with popular platforms like:
- HubSpot and Salesforce: For real-time CRM updates and lead tracking.
- Google Sheets: To manage and enrich lead lists dynamically.
- Zapier: For connecting with thousands of apps to build custom workflows.
This seamless integration eliminates silos, allowing teams to collaborate and execute campaigns more effectively.
5. Scalability
Scaling outreach campaigns often means sacrificing the personal touch, but not with Clay. The platform ensures that even as you reach thousands of prospects, the messaging remains tailored and impactful.
How does it achieve this?
- Dynamic Templates: Generate unique email content for each recipient based on their data.
- Batch Campaign Management: Handle multiple campaigns simultaneously without losing oversight.
- Quality Control Features: Monitor performance metrics like bounce rates and response rates in real-time to make adjustments on the fly.
For businesses running large-scale outbound campaigns, Clay lead generation agencies ensure every touchpoint feels personalized, resulting in higher engagement and conversions.
The Top 10 Clay Lead Generation Agencies for 2025: [Reviewed]
Finding the right Clay.com generation agency can be a daunting task – with a bunch of different options available in the market.
To help you choose the right one, here’s a detailed list of the top 10 Clay lead generation agencies you can look to collaborate with, in 2025:
1. Cleverviral
Cleverviral has carved a niche as one of the most trusted Clay lead generation agencies in just under 2 years – offering scalable cold outreach and Clay solutions tailored to companies in the B2B services, SaaS and tech industries. Our team of Clay experts excel in creating hyper-personalized outreach campaigns using Clay’s powerful data enrichment & automation capabilities – often pairing it up with tools like MyLeadFox, Apollo and Smartlead to scale their outreach to the next level.
One of our standout campaigns in the recent past generated a whopping 9-17% reply rates for a 3PL service, leveraging Clay to score the list based on annual revenue data and personalizing our outreach with highly-targeted messaging.
If you’re looking for a reliable Clay lead gen agency that delivers results with an innovative approach, Cleverviral is the answer!
2. Growth Engine X
Founded by the OG Clay expert Eric Nowoslawski, Growth Engine X is a B2B outbound agency with extensive experience working on Clay’s AI-powered data platform. They leverage over 20+ data sources to send relevant and highly-personalized cold emails to your prospects.
The company has helped the likes of Bequest Income Fund, Instantly.ai and multiple other big names solve their most pressing outbound problems – including deliverability, data-backed email writing and AI-powered list building among others.
Part of the Clay expert program, GEX also provides training for in-house teams on using Clay effectively, making it a great choice for companies that want to scale their outreach while keeping some control in-house.
3. Sculpted
Run by renowned B2B expert Jacob Tuwiner, Sculpted is one of the top Clay lead generation agencies in the market currently. The company leverages Clay’s dynamic capabilities to design outreach campaigns that blend storytelling with automation, creating a unique connection with prospects.
As per the website, the agency seeks to replace the effort required to maintain a large SDR team, and instead allow them to focus on more high-impact activities.
Their Clay expert team has successfully partnered with a bunch of SaaS and B2B businesses since their founding, replacing “spray-and-pray” outbound tactics with more aligned, hyper-targeted outreach.
4. BlueprintGTM
BlueprintGTM is a bespoke Go-To-Market (GTM) data science company that specializes in creating tailored sales lists and data solutions to enhance sales and marketing strategies.
Counted amongst the top Clay lead generation agencies in the market today, Blueprint is focused on providing actionable insights by analyzing various data sources, enabling businesses to identify and target their ideal customers more effectively.
Leveraging AI and machine learning to refine their outbound processes, Blueprint’s services are particularly beneficial for companies seeking to optimize their sales processes through data-driven decision-making.
5. StackOptimise
StackOptimise is a data-first Clay lead gen agency that caters to businesses in fintech, healthcare, and education. They specialize in using Clay to enrich lead lists with highly specific, actionable data points.
This agency goes beyond basic outreach, designing end-to-end campaigns that include follow-ups, CRM updates, and real-time performance tracking. Their expertise in workflow automation ensures efficiency while maintaining a high level of personalization.
6. Content Marketing Media
While the name could suggest otherwise, Content Marketing Media is a renowned B2B Clay lead gen agency that leverages tools like Clay, Instantly and Octave to generate leads for businesses.
Apart from buying and setting up email infrastructure, the company also specializes in crafting hyper-focused Clay workflows for clients – ensuring that you convert your emails into meetings. If you’re looking for Clay lead generation agencies that combine the expertise of seasoned cold email pros and a robust infrastructure, CMM is the go-to option.
7. RevGrowth.ai
RevGrowth.ai is one of the most innovative Clay lead generation agencies, specializing in AI-powered campaigns. They focus on helping SaaS companies, consulting firms, and tech startups maximize ROI through highly targeted outreach strategies.
Being certified partners for modern B2B outbound tools like Clay, Prospeo and Smartlead – RevGrowth leverages their expertise to create cold email campaigns that grow your pipeline consistently.
8. SalesCaptain
Recognized as the #1 B2B outbound agency in the UK, SalesCaptain is amongst the top Clay lead generation agencies known for creating super-targeted GTM motions and high-volume cold email campaigns – having sent out a whopping 1.2 million emails every month. Serving industries like manufacturing, logistics, and retail, SalesCaptain helps businesses leverage Clay for LinkedIn outreach, email marketing, and lead nurturing.
Their approach focuses on building trust through consistent, value-driven messaging, making them an ideal choice for companies with complex sales cycles.
9. DFY Meetings
DFY Meetings lives up to its name by delivering fully managed cold outreach systems that predictably fill client pipelines with qualified leads. With extensive expertise in email infrastructure setup and management, DFY Meetings is amongst the few Clay lead generation agencies who take care of everything from data scraping to building automated workflows, providing a fully hands-off experience for clients.
Run by cold email pros with over 7 years of experience, they’re also offering 1:1 training to help companies set up their cold email systems by themselves.
10. The Kiln
Founded by Patrick Spychalski (who also handles Partnerships at Clay), The Kiln is amongst the earliest Clay lead generation agencies that specializes in GTM and outbound strategies. With a team consisting of early Clay employees, data scientists and outbound experts – they’ve helped businesses across industries optimize their tech stack, creating custom Clay workflows and GTM roadmaps that bring them more top-of-the-funnel revenue.
With clients like VaynerX, T-Roc and Terraboost Media – the company specializes in creative problem solving through campaigns that resonate deeply with your target audience.
How to Choose the Right Clay Expert Agency for Your Needs?
Selecting the right Clay agency is crucial for enhancing your outreach & achieving business goals. Here’s a quick primer on things to consider while selecting the Clay lead generation agencies of your choice:
1. Identify your goals
Before partnering with a Clay agency, clearly define what you aim to achieve. Are you looking to increase lead volume, improve lead quality, or enter new markets? Understanding your specific objectives will help you find an agency that aligns with your vision.
Additionally, understand whether your focus is top-of-funnel (awareness and visibility), mid-funnel (engagement and nurturing), or bottom-of-funnel (conversion and sales). Clay lead generation agencies with clarity about your long-term business goals can design workflows and campaigns that align with your business’s position in the buyer journey.
All in all, with more than 61% marketers considering lead generation as their top challenge, it is crucial to have proper goal clarity in this domain.
2. Evaluate their Clay expertise
Clay is a robust tool, but unlocking its full potential requires specialized knowledge and expertise. To choose the right Clay lead gen agency, you have to assess their familiarity with the core features (dynamic data scraping, personalization and workflow automation).
Ask for tangible evidence of their expertise – certifications (or recognition), case studies or past testimonials. You must also look for agencies that can demonstrate deep technical knowledge, such as integrating Clay with CRMs like HubSpot or using API calls to enhance campaign efficiency.
It’s also beneficial to check whether the agency is part of Clay’s expert program, as this certification signifies advanced proficiency.
3. Assess industry-specific experience
Different industries have different nuances, and a one-size-fits-all approach rarely works. A Clay lead generation agency with experience in your niche is better equipped to craft campaigns that resonate with your target audience. For instance, an agency specializing in healthcare would understand the importance of compliance, while one focused on tech startups might prioritize speed and scalability.
A Clay expert familiar with your industry will know how to scrape relevant data points, create personalized outreach, and engage decision-makers effectively. To choose the right one from among a slew of Clay lead generation agencies, you must ask the company for examples of their work in your sector.
Have they achieved measurable results for similar businesses? Do they understand the challenges unique to your industry? Agencies with relevant experience will already have a playbook for success, saving time and reducing risk.
4. Evaluate communication & collaboration
The success of any partnership hinges on clear and open communication. Evaluate how the agency plans to keep you informed about campaign progress and whether they incorporate your feedback into their strategy. Frequent check-ins, transparent reporting, and access to dashboards are indicators of a collaborative approach.
Ensure the agency provides a clear roadmap for your campaigns, including timelines, key milestones, and performance metrics. During the evaluation process, assess their responsiveness.
Do they reply promptly to emails or queries? Top-level Clay lead generation agencies often prioritize collaboration, treating your success as their own.
5. Proficiency with scalability
One of the hallmarks of great Clay lead generation agencies is the ability to scale campaigns effectively. As your business grows, so will your lead generation needs, and the agency must be equipped to handle increasing volumes without compromising quality.
Ask about their experience managing large-scale campaigns. Have they successfully scaled outreach from 1,000 to 10,000 leads while maintaining personalization?
The ability to adapt workflows, enrich larger datasets, and automate processes is critical for scaling effectively.
6. Pricing and ROI
Finally, consider the agency’s pricing model and evaluate whether it aligns with your budget and ROI expectations. Some agencies charge a flat fee, while others offer performance-based pricing. Understand the scope of services included—does the price cover data enrichment, campaign management, and follow-ups?
It’s also essential to discuss expected outcomes. For instance, if you’re investing $10,000 in a campaign, what is the anticipated return? A good Clay expert agency should provide projections based on past performance and industry benchmarks.
Additionally, ensure there are no hidden costs. Transparency in pricing builds trust and allows you to allocate resources effectively.
Tips for Maximizing Results with Clay Lead Generation Agencies
Working with a Clay lead generation agency offers immense potential for streamlining outreach and scaling your business. However, to truly unlock the platform’s full capabilities, active collaboration and strategic planning are essential.
Here are some detailed tips to help you maximize results:
1. Collaborate with the agency for tailored campaigns
Effective collaboration is the cornerstone of successful campaigns. A good Clay agency will work closely with you to design workflows and strategies tailored to your unique needs. Instead of relying on a generic approach, ensure your agency understands your business goals, target audience, and market dynamics.
Start by sharing critical insights about your Ideal Customer Profile (ICP), including industry, job roles, and challenges your prospects face. Providing this information upfront ensures the agency creates outreach that resonates with your audience.
Collaboration should also include detailed discussions on campaign messaging. Ask your Clay experts to incorporate personalized touches such as referencing pain points or recent company milestones for prospects. This makes your outreach feel more human and engaging, improving response rates.
2. Regular Performance Reviews and Updates
Campaign performance should never be a guessing game. Establish a system for regular reviews and updates with your Clay lead generation agency to ensure transparency and optimization.
During these reviews, track key metrics such as email open rates, click-through rates, and response rates. By keeping an eye on these metrics, you can identify what’s working and what needs adjustment.
Your partner agency should provide detailed reports on progress, highlighting successes and areas for improvement. Consider setting up bi-weekly or monthly check-ins to stay aligned with the agency and address any challenges in real-time.
This iterative process ensures your campaigns stay effective and agile in response to changing market conditions.
3. Leverage Clay’s dynamic capabilities for continuous improvement
Clay is a powerful platform, but its true potential lies in how effectively you leverage its features. Work closely with your Clay experts to unlock advanced functionalities like dynamic data scraping, API integrations, and workflow automation.
For instance, use dynamic fields in email templates to create hyper-personalized messaging for each prospect. With Clay’s capabilities, personalization becomes scalable, enabling you to maintain quality across large campaigns. Advanced features like real-time data enrichment can also help you update prospect information on the fly, ensuring your outreach is always relevant.
Your Clay agency should also guide you in setting up automation workflows that reduce manual effort while improving efficiency. In addition, they should also monitor what messaging resonates most with your audience & refine your approach accordingly.
As a client, you must ask your vendor about their approach towards A/B testing to identify the best performing campaigns.
Scaling Your Outbound Engine With the Right Clay Lead Generation Agency
Maximizing the value of a Clay lead generation agency requires a proactive and collaborative approach. By working closely with your agency to create tailored campaigns, scheduling regular performance reviews, and leveraging Clay’s dynamic capabilities, you can unlock the full potential of your outreach strategy. This partnership isn’t just about automation—it’s about driving meaningful engagement, scaling your efforts efficiently, and achieving measurable growth for your business.
If you’re ready to take your outbound strategy to the next level, Cleverviral can help. As one of the top Clay lead generation agencies – we specialize in designing personalized workflows, crafting dynamic campaigns, and delivering results that matter. So if you’re looking for Clay experts who help you scale without the conventional roadblocks of B2B outbound, Cleverviral is the right choice.
Reach out to us at [email protected] or drop your requirements on our website.
Until then, happy prospecting!!
