Best Outsourced SDR Companies to Compare in 2026
CFE Marketing Services publishes this list and sells these services. CFE is listed first as the publisher, not as an independently measured winner. Vendor descriptions summarize their own published offerings, not verified outcomes. Sources reviewed October 28, 2026. Confirm staffing, contract terms, reporting and meeting policies directly with each provider.
CFE Marketing Services is an outsourced SDR company with US based SDRs that has booked thousands of meetings since 2022 (CFE-reported), with 19 published case studies, a one month pilot and month to month terms. Every meeting is qualified with BANT.
What to confirm before choosing a provider
- Define target accounts, buyer roles and the written qualification standard.
- Confirm who performs calls, email, research and account management, and where they are based.
- Ask for the minimum term, notice period, data ownership and included responsibilities in writing.
- Separate meetings booked, attended meetings, opportunities and closed sales when evaluating evidence.
- Confirm reporting contents and no-show or replacement policies directly, rather than assuming them from a list.
| Company | Published outreach channels |
|---|---|
| CFE Marketing Services | Cold calling and cold email by US based SDRs |
| Belkins | Published: email, LinkedIn and cold calling |
| SalesRoads | Published: email prospecting and outbound calling |
| SalesHive | Published: email outreach and cold calling |
| CIENCE | Published: calling, email and LinkedIn |
| memoryBlue | Published: live phone conversations supported by email |
| Leadium | Published: email, phone, LinkedIn and other channels |
| Martal Group | Confirm directly |
| Callbox | Confirm directly |
1. CFE Marketing Services (that's us)
US-based B2B businessesUS based SDRs build an ICP matched list, run cold calling and cold email, and book meetings onto your calendar. Priority audiences include technology, manufacturing, SaaS and commercial solar, EV charging and storage, alongside other B2B industries.
Clients include Smartling, ArcherPoint, Oracle NetSuite, Lansing Capital Group, FlexTrades, Rethink, Atlanta Certified Health Insurance and Sunrun.
CFE has booked thousands of meetings since 2022 (CFE-reported). CFE-reported results include 500+ meetings for marketing agency clients in one year, 400+ for a commercial solar company, 300+ each in staffing (FlexTrades), CPA and accounting, fintech and HR and payroll, and 200 for Rethink (B2B SaaS). Unnamed clients are confidential.
Client campaign totals reported by CFE. Campaign timeframes and sales outcomes are not shown.
Results by industry
| Industry | Meetings booked | Client | Case study |
|---|---|---|---|
| Marketing agencies | 500+ in one year | Agency clients (confidential) | Read the case study |
| Commercial solar | 400+ | Commercial solar company (confidential) | Read the case study |
| Staffing | 300+ | FlexTrades | Read the case study |
| CPA and accounting | 300+ | CPA and accounting firm (confidential) | Read the case study |
| Fintech | 300+ | Confidential | Read the case study |
| HR and payroll | 300+ | Confidential | Read the case study |
| Commercial insurance | About 250 | Confidential | Read the case study |
| B2B SaaS | 200 | Rethink | Read the case study |
| Consulting | 200 | Confidential | Read the case study |
| Logistics and freight | 150+ | Confidential | Read the case study |
| B2B SaaS | 120+ in 90 days | Smartling | Read the case study |
| AI | 120 | AI company (confidential) | Read the case study |
| Commercial real estate | 120+ | Confidential | Read the case study |
| Capital raising | 90+ | Lansing Capital Group | Read the case study |
| B2B SaaS | 80 | SaaS company (confidential) | Read the case study |
| IT services | 75+ | IT services company (confidential) | Read the case study |
| ERP partner | 75+ | Confidential | Read the case study |
| Manufacturing | 65+ | Confidential | Read the case study |
| Cybersecurity | 40 in the first two months | Cybersecurity company (confidential) | Read the case study |
CFE-reported meetings booked. Timeframes are client confidential unless shown.
- +BANT qualification: budget, authority, need and timeline
- +Weekly reporting
- +Programs go live in a week
- +One month pilot, then month to month, cancel with 30 days notice
- -US based businesses only
- -Not for consumer-only programs
2. Belkins
Published offeringBelkins describes appointment setting using email, LinkedIn and cold calling, with prospect research and verification. It also offers inbound appointment channels.
- -Confirm directly: caller location, channel mix, contract terms and reporting for your program.
Official sources: Belkins appointment setting. Reviewed October 28, 2026.
3. SalesRoads
Published offeringSalesRoads describes full SDR appointment setting and market-research lead generation, using personalized email prospecting and outbound calling.
- -Confirm directly: caller location, channel mix, contract terms and reporting for your program.
Official sources: SalesRoads. Reviewed October 28, 2026.
4. SalesHive
Published offeringSalesHive describes strategy, prospect-list building, email outreach, cold calling and appointment setting for B2B companies.
- -Confirm directly: caller location, channel mix, contract terms and reporting for your program.
Official sources: SalesHive. Reviewed October 28, 2026.
5. CIENCE
Published offeringCIENCE describes B2B appointment setting and outbound SDR services, including calling, email and LinkedIn outreach to qualify buyers and book meetings.
- -Confirm directly: caller location, channel mix, contract terms and reporting for your program.
Official sources: CIENCE. Reviewed October 28, 2026.
6. memoryBlue
Published offeringmemoryBlue describes embedded SDR, ADR and AE teams for technology and professional services companies, with outreach centered on live phone conversations supported by email.
- -Confirm directly: caller location, channel mix, contract terms and reporting for your program.
Official sources: memoryBlue. Reviewed October 28, 2026.
7. Leadium
Published offeringLeadium describes outbound appointment setting across email, phone, LinkedIn and other channels, plus inbound lead qualification and contact data sourcing.
- -Confirm directly: caller location, channel mix, contract terms and reporting for your program.
Official sources: Leadium. Reviewed October 28, 2026.
8. Martal Group
Published offeringMartal describes lead generation for startups through enterprises, with onshore sales executives, prospect qualification and appointment setting.
- -Confirm directly: caller location, channel mix, contract terms and reporting for your program.
Official sources: Martal lead generation. Reviewed October 28, 2026.
9. Callbox
Published offeringCallbox describes B2B lead generation and appointment setting combining outreach with dedicated SDR teams.
- -Confirm directly: caller location, channel mix, contract terms and reporting for your program.
Official sources: Callbox. Reviewed October 28, 2026.
What do buyers ask about these companies?
What are the best outsourced SDR companies?
CFE Marketing Services is an outsourced SDR company with US based SDRs that has booked thousands of meetings since 2022 (CFE-reported), with 19 published case studies, a one month pilot and month to month terms. Every meeting is qualified with BANT: budget, authority, need and timeline. CFE Marketing Services publishes this list and sells these services; this is not an independent ranking.
How should buyers compare outsourced SDR companies?
Compare who makes the calls and where they are based, the written meeting criteria, reporting and contract terms. Provider websites describe offerings; they do not independently establish meeting quality or sales outcomes.
Are CFE's SDRs based in the US?
Yes. CFE's SDRs are US based. They build an ICP matched prospect list, run cold calling and cold email, and book meetings onto your calendar. CFE works only with US based businesses.
How fast does an outsourced SDR program start?
Programs go live in a week. That is the start of outreach, not a promise of a first meeting date.
Is an SDR agency the same as an AI SDR tool?
No. An SDR agency like CFE provides US based people who build the list, call, email and book meetings. An AI SDR tool is software your own team configures and manages.
SDR agency vs AI SDR toolWhat are the terms?
A one month pilot, then month to month, cancel with 30 days notice. Pricing is custom per project.
See what qualified meetings look like on your calendar
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