Key Takeaways
- Email campaign companies vary widely in pricing models - retainer-based vs performance-based affects your risk and ROI.
- Personalization and targeting quality matter more than email volume when booking qualified meetings.
- Multi-channel outreach (email + LinkedIn + phone) typically delivers higher response rates than email alone.
- Deliverability infrastructure is critical. Poor inbox placement kills even the best campaigns.
- Performance-based pricing models reduce financial risk compared to expensive monthly retainers with no guarantees.
- Match your choice to your budget, deal size, and whether you need done-for-you service or just software tools.
Email remains one of the highest ROI channels in B2B. For every dollar spent, the average return is $36. But building and managing effective campaigns requires expertise, consistency, and the right infrastructure.
That's where email campaign companies come in.
These companies handle everything from strategy and list building to copywriting, A/B testing, and email deliverability management. Some operate on retainer models. Others charge per lead or meeting booked.
The challenge? Not all providers are created equal.
Some focus on volume over quality. Others promise personalization but deliver templated blasts. And many charge upfront fees with no guarantee of results.
In this guide, we're ranking the top 10 providers based on pricing model, targeting quality, personalization, and actual performance.
Whether you're a mid-sized SaaS company looking to scale outbound or an enterprise team evaluating agency partners, this comparison will help you find the right fit.
Let's dive in.
How We Evaluated the Top Email Campaign Companies
We evaluated each provider based on what actually matters when choosing email campaign management companies:
- Personalization and targeting capabilities – Do they customize messaging or send generic blasts?
- Strategy vs volume execution – Are they focused on quality meetings or just high send counts?
- Deliverability management – How do they protect sender reputation and inbox placement?
- ICP alignment – Can they accurately target your ideal customer profile?
- Reporting transparency – Do you get clear visibility into campaign performance?
- Best fit – Which company size and industry does each provider serve best?
- Pricing model – Retainer, per-lead, or performance-based?
Let's break down each company.
Know More: How To Actually Get B2B Clients With Cold Email
Top 10 Email Campaign Companies in 2026
We've ranked these providers based on targeting precision, personalization quality, deliverability standards, and pricing transparency. Here's how they compare.
1. Cleverly - #1 Cold Email Agency

Cleverly is a performance-based email campaign company that's worked with over 10,000 clients including Amazon, Google, Uber, PayPal, Slack, and Spotify. We have generated $312 million in pipeline revenue and $51.2 million in closed revenue using a unique pay-per-meeting-ready-lead model.
Unlike traditional email campaign management companies that charge retainers regardless of results, Cleverly only gets paid when you get qualified leads that are ready to meet.
What Makes Cleverly Different
- Performance-based pricing – You only pay for meeting-ready leads, not email volume or monthly retainers.
- Multi-layer personalization – Every email is customized based on prospect research, not just merge tags.
- Real human SDR execution – Trained sales development reps manage campaigns, not bots or automation alone.
- Enterprise-grade deliverability infrastructure – Dedicated IP warming, domain health monitoring, and inbox placement optimization.
- Clear ROI tracking – Full transparency into meetings booked, pipeline generated, and revenue closed.

Results That Speak for Themselves
Cleverly's clients have generated:
- $312 million in pipeline revenue
- $51.2 million in closed revenue
- Thousands of qualified meetings with decision-makers at companies like Amazon, Google, Uber, PayPal, Slack, and Spotify
These aren't vanity metrics. These are real meetings that turned into pipeline and closed deals.

Pricing Model
Cleverly uses a performance-based model. You pay per meeting-ready lead, not per email sent or month of service.
This eliminates the biggest risk with traditional email campaign companies: paying thousands upfront with no guarantee of results. If Cleverly doesn't deliver qualified leads, you don't pay.
It's a lower-risk, higher-accountability approach compared to retainer-based agencies.

Best For
- Mid-sized B2B companies (50–500 employees) that need predictable pipeline growth.
- SaaS, tech, and professional services companies selling to other businesses.
- Revenue teams that care about meetings and closed deals, not open rates and click-throughs.
- Companies looking for how to build effective email campaigns for mid-sized companies without hiring an in-house SDR team.

See More Case Studies & Testimonials
Why We Rank It #1
Cleverly stands out among email campaign companies because of its performance-based model and proven results.
Most agencies charge $5,000–$15,000 per month regardless of outcomes. Cleverly flips that model and only charges when you get results.
The combination of human execution, multi-touch personalization, and enterprise-level deliverability makes it one of the top companies for personalized email campaigns in 2026. If you want qualified meetings, not just email blasts, Cleverly delivers.
2. Belkins

Belkins is a B2B lead generation and cold email agency founded in 2015. They focus on appointment setting through manual, high-touch outreach and use proprietary tools to optimize email deliverability.
What They Offer
- High deliverability rates – Uses Folderly (their own tool) to achieve strong inbox placement while staying compliant with GDPR and CAN-SPAM.
- Manual lead vetting – Prospects are verified by hand instead of relying purely on automation.
- Omnichannel outreach – Combines cold email with LinkedIn and phone calls for better conversion.
- Dedicated teams – Assigns SDRs, copywriters, and account managers to study your brand voice.
Pricing Model
Belkins operates on a monthly retainer, typically $5,000 to $14,800+ per month. Most projects require a minimum commitment of $10,000 or more.
Best For
- Established B2B companies (SaaS, IT, agencies) with budgets over $10k per month.
- Teams looking for a high-touch, white-glove approach to appointment setting.
Limitations
- High cost – Premium pricing makes it unsuitable for startups or smaller teams.
- Slower ramp-up – Manual processes can take longer to scale compared to more automated providers.
Belkins is solid for companies that can afford a premium retainer and want hands-on campaign management. But if you're budget-conscious or need faster results, the pricing and timeline may not fit.
3. SalesBread

SalesBread is a boutique B2B lead generation agency that specializes in done-for-you LinkedIn lead gen and email outreach. They focus on securing high-quality meetings through hyper-personalized messaging.
What They Offer
- 1 lead per day guarantee – Promises around 20+ qualified sales leads per month, prioritizing quality over volume.
- Hyper-personalized outreach – Uses manual research to craft relevant messages instead of automated templates.
- Multi-channel strategy – Combines LinkedIn outreach with email follow-ups to boost response rates.
- Boutique approach – Clients work directly with experienced specialists for tailored service.
Pricing Model
Monthly retainer starting around $3,000, plus a one-time setup fee. No long-term contracts required.
Best For
- Small to mid-sized B2B companies looking for highly personalized outbound campaigns.
- Teams that want a hands-on, boutique experience with direct access to strategists.
Limitations
- Higher cost for startups – $3,000+ per month may be steep for early-stage companies.
- Waitlist possible – Their boutique model means availability can be limited.
- LinkedIn Sales Navigator required – You'll need your own subscription, and the service works best for industries active on LinkedIn.
SalesBread works well if you want personalized, low-volume campaigns with direct specialist support. But if you need scalable outreach or don't rely heavily on LinkedIn, it may not be the best fit.
4. CIENCE

CIENCE is a B2B lead generation and sales acceleration company that combines AI-powered technology with human SDRs to run multi-channel outbound campaigns. They act as an outsourced sales department, managing the entire prospecting process from data to outreach.
What They Offer
- "People-as-a-Service" model – Provides trained, dedicated SDRs to act as an extension of your sales team.
- Multi-channel orchestration – Integrates email, LinkedIn, and phone outreach in coordinated campaigns.
- High-accuracy data – Leverages proprietary database (CIENCE GO Data) for precise targeting.
- Customized strategy – Dedicated campaign managers build tailored playbooks based on your ICP.
Pricing Model
Custom-quoted, typically ranging from $2,500 to $10,000+ per month. Requires a minimum 3–6 month contract, plus additional setup fees.
Best For
- B2B companies with high Average Contract Value (ACV) targeting senior-level personas.
- Teams looking for top companies for personalized email campaigns with LinkedIn and phone support.
Limitations
- High cost of entry – Custom pricing and long-term contracts make it prohibitive for startups with tight budgets.
- Performance inconsistency – Heavy reliance on human SDRs can lead to variable lead quality depending on the assigned team.
CIENCE is a solid choice for established B2B companies with budget for a full outsourced sales team. But if you're cost-sensitive or need predictable, consistent results, the high pricing and variable performance may be concerns.
5. Martal Group

Martal Group is a B2B lead generation and email campaign company founded in 2009. They use a combination of human-led execution and AI-assisted targeting to book meetings with high-value prospects, with a focus on technology companies.
What They Offer
- Highly targeted prospecting – Uses proprietary data and AI to identify and reach specific ICPs.
- Hyper-personalized copywriting – AI-driven messaging that's vetted and customized by humans.
- Experienced B2B sales agents – Access to trained SDRs who act as an extension of your sales team.
- Multi-channel approach – Combines email with LinkedIn outreach and cold calling for higher engagement.
Pricing Model
Monthly retainer starting at $4,500 to $6,195+ per month. Most clients start with a 3–4 month pilot contract.
Best For
- B2B SaaS and technology companies looking to outsource lead generation.
- Teams that want to scale outbound sales and book qualified meetings with decision-makers.
Limitations
- High cost – Pricing starts at $4,500+ per month, which is steep for early-stage startups.
- Variable results – Some users report inconsistent lead generation despite the premium pricing.
Martal Group works well for established tech companies with budget to invest in outsourced SDR support. But if you're cost-conscious or need guaranteed ROI, the retainer model and variable results may be a concern.
6. Lead Cookie

Lead Cookie is a done-for-you B2B lead generation agency that focuses on manual LinkedIn outreach and personalized cold email campaigns. They position themselves as a digital sales team that builds authentic connections instead of sending automated spam.
What They Offer
- LinkedIn-first strategy – Specializes in high-touch outreach using personal LinkedIn profiles.
- Done-for-you execution – Handles list building, copywriting, and daily manual sending.
- High-quality prospecting – Uses manual research to identify specific decision-makers instead of broad lists.
- Personalized messaging – Crafts tailored messages designed to start conversations, not just push sales.
Pricing Model
Monthly subscription ranging from $1,500 to $3,700+ per month. Requires a 6-month initial commitment, with Core and Boutique (more comprehensive) package options.
Best For
- B2B companies that want LinkedIn-first campaigns with email support.
- Teams looking for authentic, conversation-driven outreach instead of high-volume blasts.
Limitations
- High cost and commitment – Requires a 6-month contract and ongoing monthly fees, making it hard to test or scale quickly.
- Dependent on your brand – Since outreach comes from your personal LinkedIn profile, your profile quality and reputation heavily impact results.
Lead Cookie works well if LinkedIn is your primary channel and you're comfortable with a longer commitment. But if you need flexibility or want to test before committing to six months, the contract structure may be restrictive.
7. Lyne.ai

Lyne.ai is an AI-powered sales personalization tool that automates the creation of custom icebreakers for cold email outreach. It scrapes LinkedIn profiles, company blogs, and news sources to generate personalized opening lines at scale.
What They Offer
- Deep personalization – Generates custom icebreakers based on prospect news, blog posts, or LinkedIn activity.
- High-volume scaling – Creates 1,000+ personalized lines in minutes.
- Email verification – Built-in validation to improve deliverability and reduce bounce rates.
- Integrations – Connects with cold email tools like Lemlist, Woodpecker, and Mailshake.
- LinkedIn-first – Scrapes LinkedIn profiles to enrich data and craft relevant messages.
Pricing Model
Credit-based system starting at $6 for 20 credits (1 credit = 1 personalized lead), or monthly plans starting around $120/month for higher volumes.
Best For
- Sales teams and agencies looking for AI-driven email personalization support.
- Teams that need to scale personalized outreach without manual research.
Limitations
- Variable quality – AI-generated lines sometimes feel generic and require human review.
- Support and stability issues – Some users report slow customer support and a clunky interface.
Lyne.ai is useful if you want to automate personalization at scale and already have your own email infrastructure. But it's a tool, not a full-service solution. You'll still need to manage campaigns, deliverability, and follow-ups yourself.
8. Buzzlead.io

Buzzlead.io is a premium, done-for-you B2B lead generation agency designed for SaaS and service companies seeking a predictable pipeline of qualified meetings. They handle technical setup, signal-based prospecting, copywriting, and multi-channel outreach so you don't have to.
What They Offer
- Complete done-for-you service – Handles infrastructure (domains/warm-up), list building, and copywriting.
- Signal-based targeting – Uses data triggers like hiring, funding, and tech changes to reach prospects during active buying windows.
- High-volume multi-channel – Orchestrates personalized outreach across cold email, LinkedIn, and sometimes calls.
- Result-driven focus – Offers guarantees on pipeline generation (e.g., "$500K in 90 days") or continues working for free until goals are met.
Pricing Model
High-ticket retainer model, typically around $5,000 per month. Usually structured as a 4-month pilot program to prove ROI.
Best For
- B2B SaaS founders, marketing leaders, or service agencies with high-ticket offerings ($10k+ LTV).
- Teams looking for how to build effective email campaigns for mid-sized companies without handling outreach in-house.
Limitations
- High cost – Significantly more expensive than DIY tools like Instantly or Apollo, making it unsuitable for early-stage startups.
- Long onboarding and pilot – Requires commitment to a multi-month contract and intensive setup before seeing consistent results.
Buzzlead.io works well if you have high-ticket offerings and want a hands-off approach to outbound. But if you're budget-conscious or need faster results without a lengthy pilot, the cost and timeline may not align.
9. Sapper Consulting

Sapper Consulting is a B2B lead generation agency that specializes in high-touch, personalized email and multi-channel outreach. They focus on generating sales-qualified meetings using data-driven targeting and expert copywriting.
What They Offer
- Guaranteed appointments – Performance-based model that guarantees booked meetings or they work for free.
- Hyper-targeted data – Uses 125M+ proprietary data points for precise audience segmentation.
- Multi-channel approach – Integrates email with LinkedIn and phone follow-ups for better engagement.
- Custom copywriting – Personalized messaging tailored to specific industries.
Pricing Model
Performance-based pricing. They typically charge per booked, qualified appointment rather than per email sent or monthly retainer.
Best For
- Traditional B2B companies looking for email campaign management companies with guaranteed results.
- Teams that want a multi-channel approach with accountability built in.
Limitations
- Higher cost – Done-for-you services come at a premium compared to self-service tools.
- High-volume dependent – Their model works best for high outbound activity, not small niche targeting.
Sapper Consulting is a strong option if you want guaranteed meetings and multi-channel execution. But if your target audience is very small or you prefer to control costs upfront, the performance-based pricing may add up quickly.
10. Callbox

Callbox is a global B2B lead generation company founded in 2004 that specializes in multi-channel outreach. They combine email, voice calls, and LinkedIn to connect businesses with high-value prospects using a "Human + AI" approach.
What They Offer
- Multi-channel strategy – Integrates email with LinkedIn, voice calls, and web engagement across touchpoints.
- High-quality data enrichment – Uses in-house, human-verified data and AI to target decision-makers.
- Global reach – Proven success across North America, APAC, EMEA, and LATAM, especially in tech, SaaS, and healthcare.
- Account-based marketing (ABM) – Focuses on tailored messaging for high-value accounts.
Pricing Model
Retainer-based subscription model. Typical campaigns start around $15,000 to $30,000 per campaign pod (covering one region/language) per quarter.
Best For
- Enterprises and large B2B companies running high-volume outreach programs.
- Teams targeting multiple regions or languages with complex, multi-touch campaigns.
Limitations
- High upfront cost – $15,000+ per quarter makes it unsuitable for startups or smaller teams.
- Over-reliance on scripts – Some users report SDRs rely too heavily on pre-written scripts, limiting flexibility in technical or complex discussions.
Callbox works well for large-scale, multi-region campaigns with significant budget. But if you're a smaller company or need more personalized, flexible outreach, the high cost and scripted approach may not fit.
How to Choose the Right Email Campaign Company

Not every email campaign company will be the right fit for your business. Here's what to consider before you commit:
- Deal size and sales cycle length – High-ticket, complex sales benefit from personalized outreach. Shorter sales cycles can handle more volume.
- Personalization vs scale needs – Do you need deeply customized messaging for a small audience, or high-volume campaigns with lighter personalization?
- Budget vs expected meeting volume – Retainer models can add up quickly. Performance-based pricing reduces risk if you're focused on ROI.
- Channel strategy – Are you running email-only campaigns, or do you need LinkedIn and phone support as well?
- In-house SDR maturity – If you already have SDRs, you might just need software. If not, a done-for-you service makes more sense.
Match your choice to your budget, goals, and internal resources. The wrong fit wastes time and money.
Explore More: Appointment Setting Best Practices (Practical Guide)
How Cleverly Builds Effective Email Campaigns That Actually Book Meetings
Most email campaign companies prioritize volume. Cleverly prioritizes precision.

How we do it differently:
- ICP-first targeting – We don't just spray and pray. Every campaign starts with deep research into your ideal customer profile.
- Email + LinkedIn sequencing – Multi-touch outreach across channels increases response rates and keeps your brand top of mind.
- Deliverability protection – Dedicated IP warming, domain health monitoring, and inbox placement optimization keep your emails out of spam.
- Qualification before calendar booking – We pre-qualify every lead before they hit your calendar. No tire kickers or unqualified meetings.
- Focus on booked meetings, not just replies – Open rates and clicks don't close deals. We measure success by qualified meetings that turn into pipeline.
- Alignment with B2B sales processes – Our campaigns are built around how your buyers actually make decisions, not generic templates.
The best part? Only pay for the meeting ready leads we send you! No pricing guesswork.
Looking for an email campaign company focused on precision outreach instead of bulk volume?
🚀 Book a strategy call with Cleverly

Conclusion
Choosing the right email campaign companies comes down to how they charge, how they execute, and what results they guarantee.
Most agencies lock you into expensive retainers with no accountability. Cleverly flips that model. You only pay for meeting-ready leads, backed by real human execution and enterprise-grade deliverability.
If you want predictable pipeline growth without the risk of traditional email campaign management companies, Cleverly delivers.
Frequently Asked Questions




