Top Cold Outreach Agencies in United States

Discover the best cold outreach and outbound agencies in United States

Discover Trusted Outbound Experts in United States

Sales Captain

SalesCaptain is a B2B outbound sales agency that helps businesses grow their sales pipeline by generating leads through cold email, LinkedIn outreach, and multi-channel campaigns. The agency uses advanced AI-driven tools, intent data, and sales infrastructure to optimize prospecting efforts. By integrating with popular CRMs like HubSpot and Salesforce, SalesCaptain ensures a seamless conversion process for its clients.

Services Offered:

Outbound Sales Campaigns

Sales Data & CRM Enrichment

LinkedIn Marketing

AI & Clay Automation

Email Deliverability & Infrastructure

CRM Integration

Belkins

A B2B sales agency offering lead generation, appointment setting, and sales development services. They specialize in B2B sales, outbound marketing, and account-based marketing.

Services Offered:

B2B Lead Generation

Appointment Setting

Cold Email Outreach

Website

SalesRoads

A B2B sales agency specializing in appointment setting and outbound sales. They work with B2B companies in various industries and offer services such as lead generation and sales coaching.

Services Offered:

Appointment setting

Outbound sales

Lead generation

Sales coaching

Website

The Sales Developers

A B2B sales agency that specializes in appointment setting and outbound sales. They focus on providing quality leads that convert to sales.

Services Offered:

Appointment setting

Outbound sales

Lead generation

Website

Bandalier

A B2B sales agency specializing in sales enablement, sales training, and sales process optimization services for companies across various industries.

Services Offered:

Sales enablement

Sales training

Sales process optimization

Website

Ironpaper

A B2B sales agency specializing in lead generation and nurturing for businesses. They focus on effective marketing strategies that grab prospects’ attention, improve brand visibility, and convert leads to customers.

Services Offered:

Lead generation

Lead nurturing

Marketing strategy

Brand visibility

Website

FlyTech Inc

A lead generation and sales development company specializing in outbound campaigns, prospect identification, and strategic collaboration. They have a consistent track record of timely project delivery and effective communication.

Services Offered:

Outbound campaigns

Prospect identification

Strategic collaboration

Website

Leadium

A sales outsourcing solutions provider specializing in sales team augmentation and lead generation. They consistently receive high praise for their proficiency in increasing lead quality and conversion rates.

Services Offered:

Sales team augmentation

Lead generation

Sales outsourcing

Website

LevelUp Leads

A sales outsourcing solutions company specializing in enhancing sales performance through tailored lead generation and sales development strategies. They are praised for their strategic approach and ability to deliver results on time.

Services Offered:

B2B Lead Generation

Appointment Setting

Sales Development

Website

Atlantic Growth Solutions

A sales outsourcing solutions company providing services such as lead generation and value proposition validation. They are consistently praised for professionalism and timely delivery.

Services Offered:

B2B Lead Generation

Value Proposition Validation

Sales Outsourcing

Website

Curral

A B2B sales and marketing agency providing account-based marketing (ABM) services, lead generation, and outbound sales services. They work with companies across various industries.

Services Offered:

Account-based marketing

Lead generation

Outbound sales

Website

Blue Zebra

A B2B sales agency and telemarketing firm specializing in appointment setting and lead generation services. They focus on delivering qualified sales leads and appointments tailored to clients’ specific sales goals.

Services Offered:

Appointment setting

Lead generation

Telemarketing

Website

Leadroot

A B2B sales agency and lead generation firm specializing in data-driven prospecting. They focus on delivering high-quality leads tailored to clients’ target markets and business objectives.

Services Offered:

Data-driven prospecting

Lead generation

Sales development

Website

Martal Group

A sales outsourcing and lead generation agency providing customized solutions to businesses across various sectors such as finance, technology, and healthcare.

Services Offered:

B2B Lead Generation

Appointment Setting

Sales Development

Website

glassCanopy

A specialized B2B marketing agency focusing on content and lead generation for complex B2B sales, particularly in enterprise software, healthcare, IT infrastructure, and cybersecurity.

Services Offered:

B2B Lead Generation

Content Marketing

Digital Campaigns

Website

vsynergize

An AI-driven automation-enabled outsourcing company offering lead generation and demand generation solutions, serving various industries including BFSI, healthcare, and e-commerce.

Services Offered:

B2B Lead Generation

Demand Generation

Sales Outsourcing

Website

UnboundB2B

A marketing agency catering to enterprise and technology companies, aiming to improve ROI on marketing spend and shorten sales cycles through market insight and demand generation services.

Services Offered:

B2B Lead Generation

Demand Generation

Market Insight Services

Website

Green Leads LLC

A lead generation company specializing in outbound cold calling and business development services, noted for professionalism and effective communication.

Services Offered:

B2B Lead Generation

Outbound Cold Calling

Business Development

Website

BuzzBoard

A company providing AI-powered sales intelligence and data solutions to help businesses discover and manage target audiences effectively.

Services Offered:

B2B Lead Generation

Sales Intelligence

Data Solutions

Website

ContactWorks

Lead gen agency specializing in outbound cold calling and business development.

Services Offered:

B2B Lead Generation

Outbound Cold Calling

Business Development

Website

Treemont Consulting

Consulting firm for sales outsourcing and strategic market expansion.

Services Offered:

B2B Lead Generation

Sales Outsourcing

Market Expansion

Website

EBQ

Full-service sales and marketing outsourcing firm.

Services Offered:

B2B Lead Generation

Appointment Setting

CRM Services

Website

Invenio Solutions

Sales outsourcing firm providing lead generation and sales support services.

Services Offered:

B2B Lead Generation

Sales Support

Sales Outsourcing

Website

DJM Sales and Marketing

Sales and marketing firm offering back-office outsourcing and lead gen.

Services Offered:

B2B Lead Generation

Back Office Outsourcing

Sales Support

Website

Launch Marketing

Austin-based marketing firm focused on lead generation and revenue growth.

Services Offered:

B2B Lead Generation

Marketing Strategy

Revenue Growth

Website

Speedwork Social

LinkedIn marketing agency offering lead generation and campaign management.

Services Offered:

LinkedIn Marketing

B2B Lead Generation

Campaign Strategy

Website

Hit Rate Solutions

Known for effective telemarketing services and strong project management, focusing on lead generation and client conversion.

Services Offered:

B2B Lead Generation

Telemarketing

Sales Outsourcing

Website

Blue Valley Marketing

Specializes in outbound cold calling and business development services, noted for professionalism and effective communication.

Services Offered:

Sales Outsourcing

Customer Service Outsourcing

Call Center Services

B2B Lead Generation

B2B Appointment Setting

B2B Lead Qualification

Website

Acquirent

Offers lead generation and sales support services to help businesses increase revenue through effective outbound strategies.

Services Offered:

B2B Lead Generation

Sales Support

Sales Outsourcing

Website

Treetop Growth Strategy

Specializes in inbound content marketing and customer acquisition using Facebook for businesses with at least $3MM in annual revenue.

Services Offered:

B2B Lead Generation

Inbound Marketing

Customer Acquisition

Website

Alphoric

Provides lead generation and value proposition validation services, focusing on professionalism and timely delivery.

Services Offered:

B2B Lead Generation

Value Proposition Validation

Sales Outsourcing

Website

LeadsFlow180

Specialized in lead generation & automated sales funnels for B2B businesses.

Services Offered:

Lead Generation

Cold Outreach

Sales Funnel Automation

Website

ONTO Agency

Marketing agency helping businesses with revenue-focused growth and lead generation strategies.

Services Offered:

Cold Outreach

Lead Generation

Marketing Strategy

Paid Ads

Website

Mark My Words Media

Lead generation agency focused on delivering exclusive, inbound leads for service-based businesses.

Services Offered:

Lead Generation

Inbound Marketing

Local SEO

Website

eGenerationMarketing

Digital marketing firm specializing in lead generation for attorneys and legal firms.

Services Offered:

Lead Generation

Pay-Per-Lead

SEO for Law Firms

Website

REALTOP Digital Marketing

Performance marketing agency focused on generating leads and increasing ROI.

Services Offered:

Lead Generation

SEO

Paid Ads

Funnel Optimization

Website

GenSales

GenSales specializes in lead generation and sales development with a strategic and adaptable approach.

Services Offered:

Sales Outsourcing

Email Marketing

B2B Lead Generation

B2B Appointment Setting

Website

ExitVision Growth

ExitVision Growth specializes in lead generation and growth marketing with innovative strategies and transparent communication.

Services Offered:

Sales Outsourcing

B2B Lead Generation

B2B Appointment Setting

B2B Lead Qualification

Website

Growth Rhino

Specializes in B2B cold email outreach, crafting personalized campaigns to generate high-quality leads.

Services Offered:

Cold email outreach, lead generation, B2B sales development.

Website

Pearl Lemon Leads

Specializes in B2B lead generation, offering personalized cold outreach campaigns tailored to various industries.

Services Offered:

Cold email outreach

lead generation

appointment setting

LinkedIn outreach.

Website

Callbox

Provides B2B lead generation through effective telemarketing and prospecting campaigns, helping companies connect with high-quality prospects.

Services Offered:

Telemarketing

lead generation

appointment setting.

Website

Cleverly

Specializes in B2B lead generation through hyper-personalized cold email campaigns and LinkedIn outreach, leveraging data from thousands of campaigns.

Services Offered:

Cold email outreach

LinkedIn outreach

appointment setting.

Website

SalesHive

Utilizes cold calling, email, and LinkedIn to book meetings with qualified buyers, using a proprietary sales outreach platform and CRM.

Services Offered:

Cold calling

email outreach

LinkedIn outreach

appointment setting.

Website

How Salescaptain can help You

outbound sales

Generate a predictable pipeline with multi-channel Cold Email and LinkedIn Outreach campaigns.

b2b Paid advertising

Capture market demand at the source using Google and LinkedIn ads combined with intent data.

Linkedin content

Become an influencer and generate your own sales intent data, with a LinkedIn content program.

Belkins

A B2B sales agency offering lead generation, appointment setting, and sales development services. They specialize in B2B sales, outbound marketing, and account-based marketing.

belkins.io

B2B Lead Generation

Appointment Setting

Cold Email Outreach

SalesRoads

A B2B sales agency specializing in appointment setting and outbound sales. They work with B2B companies in various industries and offer services such as lead generation and sales coaching.

salesroads.com

Appointment setting

Outbound sales

Lead generation

Sales coaching

The Sales Developers

A B2B sales agency that specializes in appointment setting and outbound sales. They focus on providing quality leads that convert to sales.

thesalesdevelopers.com

Appointment setting

Outbound sales

Lead generation

Bandalier

A B2B sales agency specializing in sales enablement, sales training, and sales process optimization services for companies across various industries.

bandalier.co

Sales enablement

Sales training

Sales process optimization

Ironpaper

ironpaper.com

Lead generation

Lead nurturing

Marketing strategy

Brand visibility

FlyTech Inc

flytechinc.com

Outbound campaigns

Prospect identification

Strategic collaboration

Leadium

leadium.com

Sales team augmentation

Lead generation

Sales outsourcing

LevelUp Leads

levelupleads.com

B2B Lead Generation

Appointment Setting

Sales Development

Atlantic Growth Solutions

A sales outsourcing solutions company providing services such as lead generation and value proposition validation. They are consistently praised for professionalism and timely delivery.

atlanticgrowthsolutions.com

B2B Lead Generation

Value Proposition Validation

Sales Outsourcing

Curral

A B2B sales and marketing agency providing account-based marketing (ABM) services, lead generation, and outbound sales services. They work with companies across various industries.

curral.com

Account-based marketing

Lead generation

Outbound sales

Blue Zebra

bluezebraappointmentsetting.com

Appointment setting

Lead generation

Telemarketing

Leadroot

A B2B sales agency and lead generation firm specializing in data-driven prospecting. They focus on delivering high-quality leads tailored to clients’ target markets and business objectives.

leadroot.com

Data-driven prospecting

Lead generation

Sales development

Martal Group

A sales outsourcing and lead generation agency providing customized solutions to businesses across various sectors such as finance, technology, and healthcare.

martal.ca

B2B Lead Generation

Appointment Setting

Sales Development

glassCanopy

A specialized B2B marketing agency focusing on content and lead generation for complex B2B sales, particularly in enterprise software, healthcare, IT infrastructure, and cybersecurity.

glasscanopy.com

B2B Lead Generation

Content Marketing

Digital Campaigns

vsynergize

An AI-driven automation-enabled outsourcing company offering lead generation and demand generation solutions, serving various industries including BFSI, healthcare, and e-commerce.

vsynergize.com

B2B Lead Generation

Demand Generation

Sales Outsourcing

UnboundB2B

A marketing agency catering to enterprise and technology companies, aiming to improve ROI on marketing spend and shorten sales cycles through market insight and demand generation services.

unboundb2b.com

B2B Lead Generation

Demand Generation

Market Insight Services

Green Leads LLC

A lead generation company specializing in outbound cold calling and business development services, noted for professionalism and effective communication.

greenleads.com

B2B Lead Generation

Outbound Cold Calling

Business Development

BuzzBoard

A company providing AI-powered sales intelligence and data solutions to help businesses discover and manage target audiences effectively.

buzzboard.com

B2B Lead Generation

Sales Intelligence

Data Solutions

ContactWorks

Lead gen agency specializing in outbound cold calling and business development.

https://www.contactworks.com/

B2B Lead Generation

Outbound Cold Calling

Business Development

Treemont Consulting

Consulting firm for sales outsourcing and strategic market expansion.

https://www.treemontconsulting.com/

B2B Lead Generation

Sales Outsourcing

Market Expansion

EBQ

Full-service sales and marketing outsourcing firm.

https://www.ebq.com/

B2B Lead Generation

Appointment Setting

CRM Services

Invenio Solutions

Sales outsourcing firm providing lead generation and sales support services.

https://www.inveniosolutions.com/

B2B Lead Generation

Sales Support

Sales Outsourcing

DJM Sales and Marketing

Sales and marketing firm offering back-office outsourcing and lead gen.

https://www.djmsales.com/

B2B Lead Generation

Back Office Outsourcing

Sales Support

Launch Marketing

Austin-based marketing firm focused on lead generation and revenue growth.

https://www.launch-marketing.com/

B2B Lead Generation

Marketing Strategy

Revenue Growth

Speedwork Social

LinkedIn marketing agency offering lead generation and campaign management.

https://speedworksocial.com/

LinkedIn Marketing

B2B Lead Generation

Campaign Strategy

Hit Rate Solutions

Known for effective telemarketing services and strong project management, focusing on lead generation and client conversion.

hitratesolutions.com

B2B Lead Generation

Telemarketing

Sales Outsourcing

Blue Valley Marketing

Specializes in outbound cold calling and business development services, noted for professionalism and effective communication.

bluevalleymarketing.com

Sales Outsourcing

Customer Service Outsourcing

Call Center Services

B2B Lead Generation

B2B Appointment Setting

B2B Lead Qualification

Acquirent

Offers lead generation and sales support services to help businesses increase revenue through effective outbound strategies.

acquirent.com

B2B Lead Generation

Sales Support

Sales Outsourcing

Treetop Growth Strategy

Specializes in inbound content marketing and customer acquisition using Facebook for businesses with at least $3MM in annual revenue.

treetopgrowth.com

B2B Lead Generation

Inbound Marketing

Customer Acquisition

Alphoric

Provides lead generation and value proposition validation services, focusing on professionalism and timely delivery.

alphoric.com

B2B Lead Generation

Value Proposition Validation

Sales Outsourcing

LeadsFlow180

Specialized in lead generation & automated sales funnels for B2B businesses.

https://leadsflow180.com/

Lead Generation

Cold Outreach

Sales Funnel Automation

ONTO Agency

Marketing agency helping businesses with revenue-focused growth and lead generation strategies.

http://ontoagency.com/

Cold Outreach

Lead Generation

Marketing Strategy

Paid Ads

Mark My Words Media

Lead generation agency focused on delivering exclusive, inbound leads for service-based businesses.

https://www.markmywordsmedia.com/boston-ma/

Lead Generation

Inbound Marketing

Local SEO

eGenerationMarketing

Digital marketing firm specializing in lead generation for attorneys and legal firms.

https://www.egenerationmarketing.com/

Lead Generation

Pay-Per-Lead

SEO for Law Firms

REALTOP Digital Marketing

Performance marketing agency focused on generating leads and increasing ROI.

https://www.realtop.com/

Lead Generation

SEO

Paid Ads

Funnel Optimization

GenSales

GenSales specializes in lead generation and sales development with a strategic and adaptable approach.

https://gensales.com

Sales Outsourcing

Email Marketing

B2B Lead Generation

B2B Appointment Setting

ExitVision Growth

ExitVision Growth specializes in lead generation and growth marketing with innovative strategies and transparent communication.

https://exitvisiongrowth.com

Sales Outsourcing

B2B Lead Generation

B2B Appointment Setting

B2B Lead Qualification

Growth Rhino

Specializes in B2B cold email outreach, crafting personalized campaigns to generate high-quality leads.

growthrhino.com

Cold email outreach, lead generation, B2B sales development.

Pearl Lemon Leads

Specializes in B2B lead generation, offering personalized cold outreach campaigns tailored to various industries.

pearllemonleads.com

Cold email outreach

lead generation

appointment setting

LinkedIn outreach.

Callbox

Provides B2B lead generation through effective telemarketing and prospecting campaigns, helping companies connect with high-quality prospects.

callbox.com.sg

Telemarketing

lead generation

appointment setting.

Cleverly

Specializes in B2B lead generation through hyper-personalized cold email campaigns and LinkedIn outreach, leveraging data from thousands of campaigns.

cleverly.co

Cold email outreach

LinkedIn outreach

appointment setting.

SalesHive

Utilizes cold calling, email, and LinkedIn to book meetings with qualified buyers, using a proprietary sales outreach platform and CRM.

saleshive.com

Cold calling

email outreach

LinkedIn outreach

appointment setting.

More than 60 organizations have trusted SalesCaptain so far

What to look for in an outbound agency in United States?‍

Choosing the right outbound agency can be the difference between a full pipeline and wasted budget.
With so many options out there, it's important to focus on agencies that understand your target market, personalize at scale, and deliver measurable results.

Clear ICP & List Building Process

A great agency starts by deeply understanding your Ideal Customer Profile, not just job titles, but intent signals, buying triggers, and firmographics.

Cold Email Framework That Converts

The agency should have a structured cold email approach. Think subject lines that get opened, messaging that drives replies, and sequences built to book meetings.

Domain Safety and Deliverability

Protecting your sender reputation is critical. The right agency will set up SPF, DKIM, and DMARC, warm up your domains, and follow sending limits to keep you out of spam folders.

Personalization at Scale

Great cold emails feel human. Look for an agency that uses smart data, tools, or AI to personalize each message in a way that actually resonates with the reader.

Multichannel Outreach Options

Top agencies don’t rely on just one channel. If needed, they can blend cold email with LinkedIn, calls, or even retargeting to increase your chances of getting noticed.

Transparent Reporting and Feedback

You deserve to know what’s working. Great agencies share real performance metrics, explain what they’re testing, and constantly iterate to improve campaign results.

Frequently Asked Questions about Cold outreach agencies

What does a cold outreach agency actually do?

A cold outreach agency helps B2B companies generate qualified leads by running outbound email campaigns. They handle everything from building your ideal customer profile, sourcing leads, writing personalized cold emails, and booking meetings directly for your team. This lets your sales reps focus on closing, while the agency fills your pipeline consistently with high-intent prospects.

How can a cold outreach agency help grow my business?

A cold outreach agency drives growth by getting your product or service in front of the right people at scale. Instead of spending hours manually prospecting, you get a team that uses tools like Clay or Apollo to find leads based on real buying signals. They create and manage cold email sequences that generate replies, drive conversions, and increase your monthly sales pipeline with minimal lift from your team.

How much does it cost to hire a cold outreach agency?

Prices usually range from $2,000 to $10,000 per month. It depends on how many leads you want, how complex your targeting is, and whether you need guaranteed meetings. Some agencies offer packages with a fixed number of leads or booked calls. Others charge based on performance. The key is to measure ROI. One good deal often covers the entire cost.

How long does it take to see results from cold outreach?

Most campaigns take around 2 to 3 weeks to start showing signs of traction. That includes email deliverability setup, warming up domains, testing subject lines, and refining your messaging. By the end of the first month, you should start seeing consistent replies and meetings. Cold outreach isn’t instant, but when it’s done right, it scales fast and keeps your pipeline healthy.

What should I look for when choosing a cold outreach agency?

Look for an agency that understands your industry, uses modern prospecting tools, and can show you proof of results. Ask if they personalize emails, test different messaging angles, and track performance transparently. Agencies that use Clay, Instantly, or Smartlead tend to be more advanced. A good agency doesn’t just send emails, they act like a strategic partner that helps you convert outreach into revenue.