If you’re exploring outsourced SDR services (aka outsourced BDR), this guide gives you everything: how it works, when it wins over in-house, pricing signals, tech stack, multi-channel playbooks, and a short list of the best outsourced SDR companies to consider in 2025.
Last updated: August 2025
Outsourced SDR services provide a ready-made team to run outbound pipeline: list research, multi-channel prospecting (email, LinkedIn, cold calling), qualification, and appointment setting for your AEs. Think of it as a GTM engine you can spin up fast—without hiring, managing, and tooling SDRs in-house.
Good programs include data enrichment, deliverability management, dialing, messaging tests, reporting, and QA. Elite programs layer in AI SDR capabilities to boost throughput and consistency.
If you’re comparing to classic “telemarketing,” note that modern SDR outsourcing is multi-channel and outcome-driven—closer to full-cycle outbound ops than one-channel calling. See our breakdown of multi-channel outbound.
Outsourced SDR services win when speed, expertise, and controlled cost are critical. Common fits:
If you’re weighing cost, see in-house vs outsourced SDR costs and outsourced SDR pricing.
Pricing varies by ICP difficulty, channel mix, pod size, and expected outcomes. Typical models:
To model ROI, combine accepted meetings, held rate, SQL rate, and win rate with your ACV. Then compare to in-house fully-loaded costs (recruiting, management, tools, data). Start with our pricing guide.
Benchmarks vary by ICP and list quality, but these 2025 ranges are common for B2B outbound:
Use weekly dashboards: list health, inbox placement, connects/hour, talk time, conversation quality, accepted meetings, held %, and pipeline created. See our pricing & metrics guide and funnel benchmarks.
Top outsourced SDR programs now blend AI SDRs (agents and copilots) with human closers. The goal is not to replace humans on calls, but to increase throughput and consistency across research, prioritization, personalization, and follow-up.
Learn more in our deep dives: AI SDRs for Outbound Sales and AI SDRs vs. Human SDRs.
High-converting outbound warms via email, builds social proof on LinkedIn, and converts with live conversations. Use this 4-stage flow:
See the full funnel with examples in Multi-Channel Outbound Sales.
Shortlist of reputable providers to begin your RFP. Always request recent call recordings and segment-specific references.
Best for: AI-enabled, multi-channel SDR programs where quality outcomes matter (accepted & held). Parallel dialing standard; deliverability safeguarded; ICP research + weekly coaching loops. See our pricing signals.
Best for: Data-heavy, process-driven outbound at scale. Validate calling volume, list refresh cadence, and deliverability practices. Read our CIENCE overview for details. Site ↗
Best for: Multi-channel campaigns with modular offerings. Compare talk-time and held % versus internal benchmarks. Read SalesHive vs OSP. Site ↗
Best for: Appointment setting programs with a strong emphasis on North American coverage. Site ↗
Best for: Email-led outreach and appointment setting. Confirm domain protection and reply handling workflows. Site ↗
Cross-reference independent reviews on G2 and Clutch. Score vendors on ICP fit, coaching cadence, call QA access, and outcome SLAs (accepted + held).
Book a strategy session—we’ll share segment benchmarks and recent recordings in your ICP.
Telemarketing is primarily phone-only and script-based. Outsourced SDR services are multi-channel (email, LinkedIn, calling), data-driven, and measured on accepted/held meetings and pipeline. Start with the multi-channel playbook.
Most programs begin landing meetings in weeks 2–4, with compounding returns as testing identifies winning segments and talk tracks. Aggressive ramping requires strong data and deliverability foundations—see email infrastructure.
Ask for segment-specific recordings, live dashboards, qualification rules, and deliverability safeguards. Validate dialing approach (parallel vs power), and confirm outcome SLAs on held meetings.
Talk time per rep, connects/hour, conversation → meeting %, positive reply → meeting %, accepted and held meetings, SQL rate, and pipeline created. See benchmarks.
Telemarketing is phone-only and script-based. Outsourced SDR services are multi-channel (email, LinkedIn, calling), data-driven, and measured on accepted/held meetings and pipeline.
Most programs begin landing meetings in weeks 2–4, with compounding returns as testing identifies winning segments and talk tracks.
Request call recordings for your ICP, dashboards, qualification rules, deliverability safeguards, and confirm dialing approach (single vs power vs parallel) and SLAs on held meetings.
Talk time, connects/hour, conversation-to-meeting %, positive-reply-to-meeting %, accepted and held meetings, SQL rate, and pipeline created. See our benchmarks.
Our cold email outreach is designed to beat spam filters, generate high quality leads and appointments that close.
Our infrastructure allows us to scale volume quickly. Growing your sales team? We can provide your team with more appointments!
