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Top Sales Development Representative (SDR) Services Companies

Outsourced sales development representative (SDR) services put trained prospectors to work on your pipeline without you hiring, training and managing them. The provider researches accounts, runs cold calls, email and LinkedIn sequences, qualifies interest and books meetings straight onto your account executives' calendars. Companies turn to SDR firms when they enter a new market, when a founder is still doing all the prospecting, or when an in-house SDR team cannot ramp fast enough.

The providers listed here differ most in channel mix, the markets and languages their reps cover, and how they define a qualified meeting. Pin down that definition before anything else.

How this list is built

We evaluate companies on verified profile data: services, pricing, locations, and portfolio. Client reviews are being collected. We may earn a fee for some placements. How we rank and verify

List of the Best Sales Development Representative (SDR) Services Agencies

  1. Curral logo
    Curral
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    Curral offers what other agencies cannot: a reliable, assured flow of sales-qualified appointments within 2 to 4 weeks, or you won’t pay the full amount. Our fees are performance-based, making it a low-risk, results-oriented, quality-first approach to outbound sales development. Our globally situate

    Highlights

    $5,000+

    Min Project Size

    $50-99/hr

    Avg Hourly Rate

    10-49

    Employees

    London, England, Gb

    Services Provided
    100% Sales Development Representative (SDR) Services
    AI Summary

    “Curral delivers guaranteed performance-based outbound sales appointments across EMEA and North America, specializing in quality-focused, results-driven sales development with elite, globally-based SDRs.”

  2. Outboundless logo
    Outboundless
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    Outboundless is a phone-centric outbound partner designed for early-stage teams seeking quick, authentic conversations. We quickly deploy experienced North American callers within three days, making over 200 calls each day and utilizing live feedback to refine messaging and identify genuine opportun

    Highlights

    $5,000+

    Min Project Size

    2-9

    Employees

    Elizabeth City, North Carolina, Us

    Services Provided
    100% Sales Development Representative (SDR) Services
    AI Summary

    “Outboundless provides rapid deployment of North American outbound callers for early-stage teams, delivering authentic conversations, market insights, and lead generation without in-house BDR hiring.”

  3. Sale-Art logo
    Sale-Art
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    Sale-Art focuses on B2B lead generation, providing customized solutions that deliver outcomes for your business. Our team performs thorough research on your company and develops targeted campaigns aimed at optimizing your lead generation capabilities.

    Highlights

    $1,000+

    Min Project Size

    < $25/hr

    Avg Hourly Rate

    2-9

    Employees

    Istanbul, Istanbul, Tr

    Services Provided
    100% Sales Development Representative (SDR) Services
    AI Summary

    “Sale-Art specializes in B2B lead generation by delivering tailored research-driven campaigns that enhance business growth through optimized, targeted outreach and client-focused solutions.”

  4. ZipQuote logo
    ZipQuote
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    ZipQuote, backed by Underground Elephant, assists insurance agents in securing more contracts. Our in-house lead generation and extensive support teams link you with motivated prospects, enabling you to increase your policy sales while conserving time and resources. In summary, utilizing ZipQuote as

    Highlights

    $1,000+

    Min Project Size

    $25-49/hr

    Avg Hourly Rate

    10-49

    Employees

    San Diego, California, Us

    Services Provided
    100% Sales Development Representative (SDR) Services
    AI Summary

    “ZipQuote, supported by Underground Elephant, provides insurance agents with digital lead generation and extensive support, enhancing prospecting efficiency and increasing policy sales.”

  5. Brandigade logo
    Brandigade
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    Brandigade is a sales development agency focused on B2B that creates outbound pipelines for tech firms. We integrate specialized SDR teams into your sales process, manage outreach strategies, find potential contacts, and schedule qualified meetings directly on your calendar. There’s no need for hiri

    Highlights

    $5,000+

    Min Project Size

    < $25/hr

    Avg Hourly Rate

    10-49

    Employees

    Mountain Home, Arkansas, Us

    Services Provided
    100% Sales Development Representative (SDR) Services
    AI Summary

    “Brandigade is a B2B sales development agency that builds outbound pipelines for tech firms by integrating specialized SDR teams and managing outreach, contact sourcing, and meeting scheduling.”

  6. Connections Outsourcing Inc logo
    Connections Outsourcing Inc
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    Connections Outsourcing Inc., founded in 2024 and located in Mandaue City, Cebu, Philippines, is a rapidly expanding Business Process Outsourcing (BPO) firm that delivers customized outsourcing services to international clients. Their offerings include customer support, technical support, recruitmen

    Highlights

    < $25/hr

    Avg Hourly Rate

    50-249

    Employees

    Mandaue City, Central Visayas, Ph

    Services Provided
    100% Sales Development Representative (SDR) Services
    AI Summary

    “Connections Outsourcing Inc. is a growing Philippine BPO offering tailored customer support, technical assistance, recruitment outsourcing, and virtual services, focusing on cost-effective, secure, and scalable solutions.”

  7. Interforce Marketing logo
    Interforce Marketing
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    We offer marketing services to automotive dealerships and manufacturers aimed at increasing their sales of cars and services across Canada, France, and the USA. Our main offering is the management of loyalty events, and we also run our own call center (BDC).

    Highlights

    $5,000+

    Min Project Size

    $25-49/hr

    Avg Hourly Rate

    10-49

    Employees

    Montreal, Quebec, Ca

    Services Provided
    100% Sales Development Representative (SDR) Services
    AI Summary

    “Interforce Marketing provides comprehensive automotive marketing services including loyalty event management and call center operations to enhance car sales and service revenue across Canada, France, and the USA.”

  8. Remote Reps Sourcing logo
    Remote Reps Sourcing
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    We take pride in being your reliable ally in revolutionizing businesses with effective digital marketing strategies.

    Highlights

    $1,000+

    Min Project Size

    $25-49/hr

    Avg Hourly Rate

    50-249

    Employees

    Services Provided
    90% Sales Development Representative (SDR) Services
    10% Other Digital Marketing
    AI Summary

    “Remote Reps Sourcing is a dependable partner specializing in transforming businesses through effective digital marketing strategies that enhance online presence and drive growth.”

  9. MarketStar Bulgaria logo
    MarketStar Bulgaria
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    MarketStar enhances growth from initial leads to recurring revenue through innovative customer engagement strategies focusing on B2B sales and customer success initiatives. By leveraging a variety of channels, MarketStar has successfully launched, marketed, and supported countless products and servi

    Highlights

    $25,000+

    Min Project Size

    1000-9999

    Employees

    Sofia, Sofia, Bg

    Services Provided
    75% Sales Development Representative (SDR) Services
    20% Go-to-Market Strategy
    5% Marketing Services
    AI Summary

    “MarketStar Bulgaria, part of MarketStar, specializes in B2B sales development and demand generation, enhancing customer engagement and driving revenue growth through innovative strategies across multiple channels.”

  10. Escalate Partners logo
    Escalate Partners
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    At Escalate, we assist B2B companies in developing their outbound strategies and ensuring a steady flow of new prospects. Instead of just generating more leads, what you really need is to create more opportunities in your pipeline to expand your business. We handle everything for you, allowing you t

    Highlights

    $5,000+

    Min Project Size

    10-49

    Employees

    Services Provided
    80% Sales Development Representative (SDR) Services
    20% Other Digital Marketing
    AI Summary

    “Escalate Partners specializes in developing outbound strategies for B2B companies, managing prospecting processes to create qualified leads and expand sales pipelines effectively.”

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Buyer's guide

Hiring Sales Development Representative (SDR) Services companies

What the work covers, how to judge a partner and what drives the price.

What outsourced sales development (SDR) firms do

A typical program starts with an ideal customer profile workshop, then list building from data tools, message writing and a test phase across channels. Reps work dedicated or shared: a dedicated SDR works only your accounts and learns your product deeply, while a pod shares reps across several clients to lower cost. Most firms run calls, email and social touches together and log every activity in your CRM.

Engagement models include a full-time dedicated rep billed monthly, pay-per-meeting programs where you pay only for meetings held, and hybrids with a lower retainer plus a meeting bonus. Some providers also supply the tech stack, such as dialers, sending domains and data credits, while others work inside the tools you already own.

Good programs report weekly on dials, connects, replies and meetings, and run a regular feedback loop with your account executives about which meetings turned into real opportunities.

Chapter 1 of 3
FAQ

Sales Development Representative (SDR) Services FAQs

Short answers to what buyers ask before hiring a Sales Development Representative (SDR) Services company.

Question not covered? Ask our team

Outsourced SDR services include prospect research, list building, cold calling, email and LinkedIn outreach, lead qualification and booking meetings for your account executives. Most providers also write the messaging, manage sending infrastructure and report activity and meetings in your CRM each week.

Outsourced SDR services cost a monthly fee per rep, a price per qualified meeting, or a base fee with performance pay. Most providers on Edverise set a minimum engagement of $1,000 to $5,000. Rep location, buyer seniority, channel count and data costs move the price most.

An SDR program needs setup before meetings arrive: profile definition, list building, messaging, domain warm-up and a test phase. How fast results follow depends on your market, offer and data quality. New sending domains and unclear qualification criteria are the usual causes of a slow start.

SDR services cover the whole prospecting function, including research, multichannel outreach, qualification and handoff, while appointment setting focuses narrowly on booking calls, often by phone. SDR firms usually work as an extension of your sales team; appointment setters often sell meetings by volume.

Business services, IT and software, marketing agencies, financial services, healthcare and ecommerce firms make up most clients of SDR providers in this listing. SaaS sellers use them to test new segments, while financial and healthcare buyers need reps trained on compliance-sensitive conversations.

Many SDR service providers on Edverise are based in London, New York, Dubai, Mumbai and Toronto. Rep location matters more here than for most services, since accent, language and working hours need to match the markets you are calling into.

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