8 Best Outsourced SDR Companies in 2026

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An outsourced SDR company provides Sales Development Representatives who find prospects, qualify leads, follow up, and book meetings for your sales team. The right provider can help generate pipeline faster without the cost and ramp-up time of building a team from scratch.

But which providers are worth considering?

Here are 8 outsourced SDR companies to evaluate in 2026.

What Does an Outsourced SDR Company Do?

An outsourced SDR team typically handles:

• Prospect research
• Lead qualification
• Cold calling
• Email outreach
• LinkedIn prospecting
• Follow-ups
• Appointment setting
• Sales pipeline reporting

Some providers are fully managed, while others work as an extension of your existing sales team.

For example, a co-managed SDR model allows an external team to work within your CRM, sales process, messaging, and qualification criteria.

If you're building or improving an SDR function, understanding the qualities of a well-performing SDR can also help you evaluate potential providers.

8 Best Outsourced SDR Companies in 2026

1. Callbox — Best for B2B Tech and SaaS

Callbox offers a co-managed SDR model designed to work as an extension of your sales team.

Its approach combines phone, email, LinkedIn, and social outreach with prospect research and campaign management.

Best for: B2B technology, SaaS, enterprise companies, and businesses entering new markets.

You can learn more about Callbox outsourced SDR services and how the model works.

2. CIENCE — Best for High-Volume Outbound

CIENCE combines SDR services with data and outbound technology.

It can be a good fit for companies that need to scale prospecting and maintain a high volume of outbound activity.

Best for: Companies focused on high-volume outbound.

3. Belkins — Best for Appointment Setting

Belkins focuses on outbound lead generation and appointment setting.

Its model can work well for companies that want to outsource prospecting while their internal sales team focuses on closing.

Best for: SMB and mid-market businesses.

4. Martal Group — Best for SaaS and Technology

Martal Group specializes in technology and software sales development.

Its fractional SDR approach can be useful for companies that need sales support without building a large internal team.

Best for: SaaS, software, and technology companies.

5. SalesRoads — Best for Phone-Based Prospecting

SalesRoads has a strong focus on phone-led outbound sales.

This can be valuable for businesses where direct conversations remain an important part of the sales process.

Best for: Professional services, fintech, healthcare, and other B2B markets.

6. MemoryBlue — Best for Tech Startups

MemoryBlue combines outsourced sales development with SDR training and talent development.

This makes it an option for startups that need pipeline while developing future sales talent.

Best for: Technology startups and scale-ups.

7. Operatix — Best for EMEA Expansion

Operatix focuses heavily on technology sales and international markets, particularly EMEA.

Its regional expertise can help companies entering European markets.

Best for: Technology companies expanding into EMEA.

Companies expanding internationally can also explore cross-border marketing strategies before launching an outbound campaign in a new market.

8. VSA Prospecting — Best for SMB Phone Prospecting

VSA Prospecting specializes in B2B phone prospecting and can be a practical option for smaller companies targeting local or regional markets.

Best for: SMBs and local B2B businesses.

How Much Do Outsourced SDR Services Cost?

Pricing depends on the provider, market, channels, and engagement model.

Common options include:

• Monthly retainer: A fixed monthly fee for an SDR program
• Pay-per-meeting: Payment based on qualified appointments
• Hybrid: A base fee plus performance-based costs
• Fractional SDR: Part-time SDR support

Don't choose a provider based only on the lowest price.

A cheaper program isn't necessarily better if it produces poor-quality meetings.

Instead, ask about cost per qualified meeting and meeting-to-opportunity conversion.

If you're comparing outsourcing costs with building an internal team, understanding the benefits of SDR outsourcing can help you determine which approach makes more sense.

Outsourced SDR or In-House SDR?

Outsourcing may be a better option if you:

• Need pipeline quickly
• Want to enter a new market
• Need to test a new ICP
• Don't want to hire and train SDRs
• Need multi-channel prospecting

Building an in-house team may make more sense if you already have a proven sales process and enough volume to support full-time SDRs.

A co-managed model can provide a middle ground by combining external SDR resources with your internal sales process.

For companies that need more than prospecting, combining SDR outsourcing with B2B appointment setting can help turn outbound activity into qualified sales conversations.

How Do You Choose the Right SDR Company?

Before signing a contract, ask five simple questions:

1. Do they understand your ICP?
Your SDR partner should know exactly who you want to reach.

2. Which channels do they use?
Look for providers that can combine phone, email, and LinkedIn when appropriate.

3. What counts as a qualified meeting?
Define qualification before the campaign starts.

4. How do they measure results?
Ask for reporting on meetings, opportunities, conversion rates, and campaign activity.

5. How quickly can they launch?
A clear onboarding process can help you start generating pipeline faster.

For larger account-based campaigns, consider whether the provider also offers account-based marketing services.