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Cold outreach might sound simple, but turning a cold email into a meeting takes skill and precision.
That’s where cold email agencies come in. They blend strategy, copywriting, and deliverability expertise to make sure every message has a chance to be opened and considered.
Behind the scenes, agencies rely on outreach platforms like Manyreach to handle the technical foundation: connecting mailboxes, setting up scalable infrastructure, monitoring deliverability, and keeping campaigns running seamlessly across teams. It’s this kind of system that lets agencies focus on what really matters: results.
Let’s explore the top 10 cold email agencies leading the U.S. landscape in 2025
- IntentSignal
- LevelUp Leads
- Hypergen
- Cleverly
- Pearl Lemon Leads USA
- Superhuman Prospecting
- 310 Creative
- SalesBread
- SalesHive
- Omni Online
Top 10 Cold Email Agencies in the USA (2025 Update)
Finding the right cold email agency can be challenging, given the number of options available today. To simplify your search, we’ve handpicked the best cold email agencies in the USA based on:
- Their cold emailing process and personalization approach
- Range of services and campaign strategy
- Pricing transparency and flexibility
- Authentic client reviews and case studies
1. IntentSignal
IntentSignal is a data-driven B2B lead generation agency specializing in intent-based targeting. Their campaigns align marketing and sales signals to connect brands with decision-makers most likely to convert.
Why They Stand Out: IntentSignal helps companies generate millions in sales pipeline opportunities. For that they collaborate with a select group of high-growth executives.
Key Services:
AI-Infused Outbound Sales Campaigns: IntentSignal designs bespoke outbound campaigns for enterprise companies using advanced AI technology and data-driven strategies to generate high-quality leads.
Cold Email & Deliverability Infrastructure: They manage and optimize email systems to ensure outreach consistently lands in inboxes, maximizing deliverability and engagement rates.
Rapid Testing & Scaling: IntentSignal runs continuous experiments on messaging and targeting, and quickly identifies what works best and scaling winning campaigns for maximum impact.
Custom Engineering Solutions: Their team builds proprietary tools and infrastructure to enhance outreach performance and deliver unique, highly effective campaign results.
Revenue: Not Specified
Company Size: 11-50 Employees
Location: California, USA
Pricing: Contact IntentSignal via their website form for a custom quote.
2. LevelUp Leads
LevelUp Leads is a performance-based cold email agency that helps B2B SaaS and service companies reach verified leads through targeted prospecting and outreach. Their data-first process ensures every campaign hits the right decision-makers.
Why They Stand Out: LevelUp Leads blends human-led research with data enrichment and ICP refinement. So they can deliver highly personalized campaigns that consistently convert.
Key Services:
Fractional & Full-Service SDRs: They provide both flexible fractional SDR support and fully outsourced SDR teams to manage your outbound sales process from start to finish.
Cold Calling Services: They run intent-driven cold-calling campaigns to reach decision-makers who haven’t interacted with your brand and generate high-quality leads.
Email Services: They build target lists and deploy data-driven outbound email campaigns to generate qualified leads aligned with your ideal customer-profile.
LinkedIn Lead Generation & Content Marketing: They enhance businesses’ LinkedIn presence through strategic content creation and outreach to build brand authority and generate inbound and outbound leads.
List Building Services: They build custom contact lists, based on your ideal customer profile. So your outreach targets the right people in the right companies.
SEO Services for B2B Marketing: They execute keyword research, on-site optimization, content creation, technical SEO and link-building to boost search visibility and generate high-quality organic leads.
Go-to-Market Strategy Consulting: They help businesses launch new products or services with market research, competitive analysis and audience targeting to support outbound and inbound growth.
Revenue: $3.5 Million-$5 Million
Company Size: 51-200 Employees
Location: California, USA
Pricing: Request a customized proposal directly from LevelUp Leads.
3. Hypergen
Hypergen helps fast-growing startups and enterprise teams scale lead generation through cold email and multichannel outreach. Their precision targeting uses social and intent data to engage the right audience.
Why They Stand Out: Hypergen’s AI-powered targeting and adaptive testing make campaigns smarter over time. And so they can ensure improved engagement and conversion rates.
Key Services:
B2B Lead Generation & Sales Outreach: HyperGen helps businesses to connect with high-value prospects through data-driven targeting and personalized outreach to accelerate growth.
Cold Email & Deliverability Optimization: They manage and optimize cold email campaigns, including domain setup, inbox warm-up, and authentication, ensuring messages reach the inbox instead of spam.
CRM Consulting & Sales Automation: HyperGen streamlines sales operations by improving CRM architecture, automating workflows, and centralizing data for better lead tracking and team efficiency.
Revenue Operations (RevOps): They align sales, marketing, and customer success teams to optimize revenue processes, improve forecasting, and accelerate deal cycles.
Intent-Based Prospecting & Data Intelligence: HyperGen leverages buying intent signals and data analytics to identify and target companies actively seeking solutions in your market.
Revenue: <$5 Million
Company Size: <25 Employees
Location: Virginia, United States
Pricing: Book a free strategy consultation on Hypergen’s website.
4. Cleverly
Cleverly is a U.S.-based LinkedIn and cold email agency known for merging automation with creativity. They help SaaS and agency clients generate consistent B2B leads through authentic outreach.
Why They Stand Out: Cleverly stands out for its balance of automation and human touch. So they make sure the emails feel personal and deliver measurable ROI.
Key Services:
LinkedIn Lead Generation: Cleverly runs targeted LinkedIn outreach campaigns with personalized messages to connect businesses with ideal prospects and generate qualified leads.
Cold Email Outreach: They design and manage hyper-personalized cold email campaigns that help companies reach dream clients and drive new sales opportunities.
White-Label LinkedIn Services: Cleverly also provides LinkedIn lead generation under your agency’s brand, handling list building, message sequences, and lead delivery.
Lead Generation for Small Businesses: At the same time they create tailored LinkedIn outreach strategies for small companies, optimizing profiles, building prospect lists, and turning connections into clients.
LinkedIn Recruiting Service: Cleverly helps businesses find and recruit top candidates on LinkedIn through targeted outreach, list building, and managed follow-up, without traditional hiring fees.
SEO Blog Writing Service: They offer done-for-you SEO blog content creation to attract high-intent visitors, improve search visibility, and convert readers into leads.
Revenue: <$5 Million
Company Size: <25 Employees
Location: California, United States
Pricing: Schedule a demo for a tailored pricing plan.
5. Pearl Lemon Leads USA
Pearl Lemon Leads USA combines global experience with a local U.S. presence to deliver personalized cold email, LinkedIn, and phone outreach campaigns.
Why They Stand Out: Their tailored strategies align closely with each client’s brand voice. So they can help businesses build credibility and drive high-quality meetings.
Key Services:
B2B Lead Generation: Pearl Lemon Leads provides end-to-end B2B lead generation services to help businesses find, engage, and convert high-quality leads through targeted outreach strategies.
Prospect Research: They build and deliver verified prospect lists that match the ideal buyer profile, including key details like company size, industry, and decision-maker roles.
Multichannel Outreach: The team runs outreach campaigns across LinkedIn, cold email, and other digital channels to connect with the right prospects effectively.
Lead Qualification: Pearl Lemon Leads filters and qualifies prospects based on interest, fit, and buying intent, making sure only high-potential leads are passed to your sales team.
Campaign Optimization: They use data analytics and continuous testing to refine messaging, targeting, and outreach methods for better conversion rates over time.
Appointment Setting: Their service can also include booking meetings with qualified leads, giving your sales team ready-to-convert opportunities.
Revenue: <$5 Million
Company Size: 29 Employees
Location: London, UK
Pricing: Request a quote via the Pearl Lemon Leads website.
6. Superhuman Prospecting
Superhuman Prospecting is a human-led cold outreach agency that combines email, phone, and social strategies. It starts real conversations with prospects.
Why They Stand Out: Their U.S.-based team personally crafts every email. So they can offer authentic outreach that feels genuine and drives stronger engagement.
Key Services:
Cold Calling Services: Superhuman Prospecting offers professional cold calling to connect businesses with potential customers, introduce products or services, and create high-quality sales conversations.
Appointment Setting: They schedule qualified meetings between your sales representatives and interested prospects, ensuring your team focuses only on high-value opportunities.
Lead Generation: The company also generates targeted leads that fit your ideal customer profile, delivering verified prospects ready for your sales pipeline.
List Building: Superhuman Prospecting builds accurate and customized contact lists based on industry, job title, company size, and region to maximize outreach success.
Revenue: $5.8 Million
Company Size: 34 Employees
Location: Pennsylvania, USA
Pricing: Contact Superhuman Prospecting team for package details.
7. 310 Creative
310 Creative is a Los Angeles growth agency that integrates cold outreach with inbound marketing and HubSpot automation for B2B and SaaS clients. They also use demand generation to filter sales-ready websites for clients.
Why They Stand Out: They combine creative strategy with technical expertise. So they build scalable systems that unite sales and marketing efforts seamlessly.
Key Services:
Inbound Marketing: They define the buyer’s journey, by identifying buyer personas, developing messaging, and sales presentations.
Sales Pipeline Management: 310 Creative modernizes the sales pipeline, leveraging CRM software, and building effective sales plans with supporting content and email campaigns.
Revenue Operations (RevOps): They provide analytics and reporting for deal forecasting, lead-to-customer velocity, revenue by source, and data governance through custom dashboards.
CRM Selection & Implementation: They also help businesses choose and implement the right CRM platform such as HubSpot CRM or Sales Hub—to streamline sales processes.
Demand Generation: 310 Creative drives new business through Account-Based Marketing- ABM, outbound lead generation, sales-ready websites, and sales enablement strategies.
Digital Marketing Services: They enhance visibility and performance through inbound marketing, search engine optimization, paid media management, and conversion optimization.
Revenue: <$5 Million
Company Size: <25 Employees
Location: California, USA
Pricing: You have to visit their website for a customized quote.
8. SalesBread
SalesBread is a precision-driven cold email agency and it guarantees one qualified lead per client per day through hyper personalized campaigns.
Why They Stand Out: What stands out is their handcrafted, one-to-one outreach approach. It focuses on quality over quantity, and delivers measurable results after every campaign.
Key Services:
B2B Lead Generation: SalesBread offers done-for-you lead generation services designed to deliver one qualified lead per day through personalized LinkedIn and email outreach.
Multi-Channel Outreach: They also create targeted prospect lists, craft customized content, and use both LinkedIn and email to connect with ideal clients effectively.
Sales Copywriting & Research: The team conducts in-depth research to identify the right decision-makers and writes tailored, high-converting copies for each campaign.
Consultation & Strategy: SalesBread helps businesses define their ideal customer profiles and build smart outreach strategies that maximize results.
Training & Courses: At the same time they also provide educational programs and courses to teach companies how to master cold email and outbound lead generation.
Revenue: Not Mentioned
Company Size: 2-10 Employees
Location: Florida, USA
Pricing: Book a meeting or call them to learn more.
9. SalesHive
SalesHive delivers scalable outbound campaigns using a blend of human research, automation, and deliverability best practices for B2B growth.
Why They Stand Out: Their hybrid model combines automation and human oversight. So they make consistent results with transparent reporting and performance tracking.
Key Services:
Cold Calling: SalesHive hires and manages professional B2B cold callers and reaches out to potential clients. They introduce your business, discuss your offers and generate high-quality leads for your company.
Email Marketing: They run highly targeted outbound email campaigns using their own email platform. Through this they reach the right audience, spark interest, and drive engagement effectively.
Remote SDRs: SalesHive provides part-time and full-time remote Sales Development Representatives to help scale your sales team. These reps qualify leads, and set up appointments, helping your business to grow efficiently without additional overhead.
Revenue: $34 Million
Company Size: 100 Employees
Location: Colorado, USA
Pricing: Reach out to the SalesHive team for more, on detailed pricing.
10. Omni Online
Omni Online Strategies helps small and mid-sized U.S. businesses grow with data-driven cold email, nurturing, and automation campaigns.
Why They Stand Out: Their ROI-focused approach makes sure the delivery is optimized, outcomes are measurable, and pipeline growth is sustainable through smart outreach systems.
Key Services:
Website Solutions: Omni Online offers tailored online business solutions, based on businesses’ needs and goals.
E-commerce for Businesses: They know that many businesses need ways to deliver products and services without face-to-face interaction. That’s why they offer online store solutions with various options, pros & cons.
SEO Strategies: The agency uses SEO as a strategic process to improve a website’s visibility in search engines like Google, and Binge.
Social Media Consultation: Their service also includes social media platforms like Facebook, Twitter, Instagram, Pinterest, and LinkedIn. Omni Online also shows how it is effective for many businesses and can be incredibly powerful to establish, maintain and expand a customer base.
Revenue: $6.3 Million34 Million
Company Size: 100 Employees
Location: Colorado, USA
Pricing: Reach out to the SalesHive team for more, on detailed pricing.
How to Choose the Right Cold Email Agency
The best cold email agency for your business depends on your goals, audience, and budget. When evaluating options, look for agencies that:
Understand Your ICP
A top-performing agency should start by deeply understanding your Ideal Customer Profile or ICP — the specific prospects who’re most likely to convert. So this involves analyzing firmographics, buyer intent data, pain points, and decision-making behaviors.
Agencies that tailor messaging tone, and value propositions around your ICP makes sure that every outreach feels relevant and personalized.
These firms significantly improve response rates and conversion potential by matching campaign strategies with your audience’s real-world challenges and goals.
Prioritize Deliverability
Even the best-crafted emails will fail if they don’t reach the inbox. That’s you should partner with agencies that prioritize deliverability.
The best ones implement domain warmup procedures, maintain sender reputation, and ensure compliance with anti-spam regulations like GDPR and CAN-SPAM.
Moreover, they use advanced tools to monitor bounce rates, engagement patterns, and sender health, optimizing every step to achieve strong inbox placement. Reliable agencies understand that consistent deliverability is the foundation of sustainable lead generation success.
Offer Transparent Reporting
Transparency is a symbol of a trustworthy outreach partner. Leading agencies provide comprehensive and easy-to-read performance reports, showing open rates, reply rates, meetings booked, and conversion outcomes.
So they don’t hide behind vanity metrics; rather they offer clear insights into what’s working and what needs improvement. Our list’s agencies build trust, foster accountability, and empower clients by maintaining open communication and data-backed reporting.
Start with a small pilot campaign to evaluate performance before scaling to a full outbound strategy.
How Manyreach can Help
Cold email agencies have to send thousands of emails every day for themselves and clients alike, and it’s not possible manually. That’s where Manyreach can come to their rescue.
It helps in mass outreach by letting agencies connect mailboxes to send cold emails to unlimited contacts. It also lets agencies connect unlimited team members under unlimited workspaces.
Apart from that Manyreach has advanced deliverability features, smart sending algorithms, and analytics dashboards that track opens, replies, and conversions in real time.
And what’s best, Manyreach’s flexible pricing tiers make it suitable for startups, growing agencies, and enterprise-level teams alike. It ensures your outreach remains efficient, compliant, and results-driven; whether it’s one campaign or a hundred.
Conclusion
Once you choose the right cold email agency in the USA it can transform your outreach into a scalable revenue engine.
These 10 agencies combine personalization, testing, and deliverability expertise to drive measurable sales impact.
If you want to manage outreach in-house with advanced personalization and automation, try Manyreach — your all-in-one cold email solution built for B2B growth.
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