15 Best Outsourced SDR Companies for SaaS Startups in 2025

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Lauren Newalani

Content Writer for Whistle with multidisciplinary experience spanning over a decade.

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Your sales team has a problem. Salespeople spend only 33% of their time actually selling, with the rest disappearing into administrative tasks and follow-up activities, as per the Salesforce State of Sales report. These numbers reveal why outsourced SDR companies have become essential for growth-focused startups. 

Most SaaS startups struggle to build effective sales development functions internally. Outsourcing sales allows them to remain agile during fluctuating demand periods while eliminating overhead costs, benefits, and training, saving up to 60% compared to in-house operations.

This guide examines the top outsourced SDR companies for SaaS startups in 2025, helping you identify the perfect partner for your growth objectives.

1. Belkins

Founded in 2017, Belkins has built a reputation in the B2B lead generation space, bootstrapping their way to prominence and expanding revenue 2.5x in 2022 despite economic uncertainty.

Key Features:

  • Deep market analysis and competitor research
  • Custom ICP development and lead qualification
  • Personalized email campaigns with deliverability optimization
  • HubSpot CRM integration and workflow automation
  • SDR retention of 3-5 years versus an industry average of 12 months

 

Pricing: Monthly retainers start from $5,000 with dedicated five-person teams.

Pros: Dedicated specialist teams, transparent KPI commitment with guarantee, access to premium tools 

Cons: Higher price point, fixed-term contracts, focus on mid-to-enterprise clients

 

2. SalesBread

SalesBread intentionally limits its client roster to ensure personal attention. Since 2019, their clients have achieved an impressive 19.98% reply rate, with 48.14% resulting in meeting requests.

Key Features:

  • Hyper-targeted list building using 34+ filters
  • Manual personalization with CCQ method (compliment, commonality, or question)
  • Multi-channel approach combining LinkedIn and email outreach
  • Data-driven methodology analyzing successful clients

 

Pricing: $2,000-$3,000 per month plus setup fee.

Pros: No locked-in contracts, direct founder collaboration, ultra-refined prospect lists, guaranteed daily leads 

Cons: 2-3 week waiting list, B2B focus only, no cold calling services.

 

3. CIENCE Technologies

Since 2015, CIENCE has served 2,500+ clients using their “orchestrated outbound” model—AI handles routine activities while human SDRs focus on high-potential opportunities.

Key Features:

  • Multi-channel outreach (email, phone, social media)
  • Inbound lead qualification
  • Go-to-market solutions
  • Multi-threading strategy for multiple decision-makers

Pricing: Platform plans from $2,400/month, services from $2,900/month.

 

Pros: AI-human collaboration, multi-industry experience, strong data capabilities 

Cons: Higher pricing, inconsistent support quality, and delivery delays.

 

4. Martal Group

Since 2009, Martal Group has built international operations across North America, the EU, and LATAM, generating leads across 50+ industry verticals.

Key Features:

  • AI-driven SDR process with omnichannel strategy
  • Intent-based prospecting using real-time data
  • Personalized engagement despite high-volume outreach
  • Proprietary AI platform analyzing millions of touchpoints

 

Pricing: Three tiers starting at $5,000-$6,195/month.

Pros: Full-service approach, North American team, 3× faster ramp-up than in-house

Cons: Higher price point, limited operational control.

 

5. SalesRoads

With 17+ years of experience, SalesRoads has built 500+ outsourced SDR teams and created over 100,000 opportunities for partners.

Key Features:

  • Experienced SDRs averaging 7 years of experience
  • Complete team structure with coaches and specialists
  • Quality-first methodology over volume metrics
  • Brand protection, ensuring authentic representation

 

Pricing: Three tiers from $6,950-$9,500 per 4 weeks.

Pros: No locked-in contracts, highly qualified leads, 4.9-star rating 

Cons: Premium pricing, limited transparency, mid-market focus.

 

6. memoryBlue

A pioneer since 2002, memoryBlue has served 2,000+ clients through its specialized tech sales development approach with global offices.

Key Features:

  • 6-week memoryBlue Academy training program
  • Flexible working arrangements
  • Multi-touch cadence for targeted decision-makers
  • Full tech stack access, including Salesforce and ZoomInfo

 

Pros: 20+ years of high-tech experience, intensive training, and comprehensive reporting 

Cons: Expensive investment, high SDR turnover, limited operational control.

 

7. Leadium

Award-winning Leadium has created over $1 billion in revenue pipeline across 1,200 organizations from its Las Vegas base.

Key Features:

  • US-based SDR teams focused on lead generation
  • Omni-channel strategy with strategic gifting
  • Channel-optimized research from 20+ data sources
  • Enterprise-grade technology integrations

 

Pros: 73% increase in conversations, 21X more likely to see ROI within 90 days 

Cons: Longer-term commitments, entry-level SDRs, teams based in Ukraine/Dominican Republic.

 

8. Outbound Consulting

Focused exclusively on SMBs, Outbound Consulting‘s 100% US-based team has served 2,000+ businesses across 25 industries with over a decade of experience.

Key Features:

  • Three-step formula: Target, Hustle, Profit
  • Rigorous market analysis for ideal client definition
  • Labor-intensive prospecting for qualified leads
  • Continuous process refinement

 

Pros: Dedicated 30+ employee team, $125M in client revenue generated, SMB specialization 

Cons: Limited pricing information, smaller team, fewer integrations.

 

9. LevelUp Leads

LevelUp Leads handles the entire outbound sales process, with one case study showing $1.2 million in pipeline and $280,000 in closed deals within six months.

Key Features:

  • Expert data research using eight premium databases
  • Multi-channel outreach (email, LinkedIn, phone)
  • Regular campaign optimization
  • Direct access to the leadership team

 

Pricing: Silver ($30/lead), Gold ($27/lead), Platinum ($25/lead).

Pros: Consistent results (10+ appointments monthly), responsive team, comprehensive management 

Cons: Higher expense, lead quality issues, limited reporting.

 

10. Newson.io

Newson.io provides both software and services, supporting 3,000+ companies with 50,000+ meetings generated and $1.20M in closed deals.

Key Features:

  • Multi-channel outreach automation
  • Flexible account options including AI Sales Reps
  • Real-time notifications for prospect replies
  • Quick 10-minute campaign setup

 

Pricing: Software plans from $5.92-$6.70/lead, appointment plans from $49.91-$82.50.

Pros: No minimum terms, saves 40 hours weekly, A/B testing capabilities 

Cons: Prolonged onboarding, communication issues, variable results.

 

11. ClickSuggest

Operating from India while serving 15+ countries, ClickSuggest combines copywriting expertise with data analysis for technology companies.

Key Features:

  • AI-powered personalization for specific challenges
  • Multichannel outreach beyond email campaigns
  • Spam-free infrastructure with multiple domains
  • Data-driven campaign optimization

 

Pros: Multichannel expertise, strong lead generation, responsive support 

Cons: Limited pricing transparency, India-based time zone challenges.

 

12. CloudTask

CloudTask operates from Miami Beach with a 9.2/10 client review score, building dedicated sales development teams for SaaS companies worldwide.

Key Features:

  • Seven service areas including B2B sales, customer success, and lead generation
  • Offices in London, Colombia, and the Philippines
  • Multi-channel approach with transparent reporting

 

Pricing: Launch ($10K), Grow ($17.5K), Scale ($40K) monthly.

Pros: Dedicated expert teams, extensive research, multi-channel approach 

Cons: High investment, long ramp-up, communication challenges.

 

13. Revnew

Revnew focuses on booking qualified meetings instead of tracking call volumes, emphasizing quality over quantity.

Key Features:

  • Tele-intent capabilities for precision targeting
  • Pre-vetted sales and marketing professionals
  • Self-sufficient ESP with IP rotation
  • AI technology integration

 

Pricing: Content Syndication ($120/lead), High-Quality Leads ($150/lead), Confirmed Call Back ($500/lead).

Pros: Product-trained SDRs, meeting-based outcomes, comprehensive enablement 

Cons: High minimums ($20K+), higher price points, limited case studies.

 

14. Operatix

Operatix brings global reach to B2B software sales development, with 300+ SDRs conducting outreach in 22 languages across continents.

Key Features:

  • Outbound sales development with multichannel engagement
  • Inbound lead qualification and marketing acceleration
  • Specialization in cybersecurity, big data, cloud, fintech, and martech
  • Global coverage across North America, LATAM, EMEA, and APAC

 

Pricing: Custom programs based on revenue objectives.

Pros: Specialized tech knowledge, global 22-language capability, real-time KPI portal 

Cons: Volume-based outreach, entry-level SDR composition.

 

15. SalesPipe

SalesPipe operates as a marketplace where you choose ideal sales development professionals from a curated talent pool.

Key Features:

  • Tailored matching based on exact requirements
  • Flexible arrangements (full-time, fractional, performance-based)
  • Pre-vetted talent ready for immediate integration
  • Detailed profiles with work history and skills

 

Pricing: Starter ($249/month), Done For You ($2,749/month), Elite (custom).

Pros: Skip team building, experienced B2B specialists, cost-effective, scalable

Cons: Less messaging control, results depend on SDR understanding

 

The right outsourced SDR partner can accelerate your pipeline and drive sustainable growth. Three patterns define successful SDR partnerships:

  1. Best providers blend technology with human insight
  2. Multi-channel outreach strategies consistently outperform single-channel approaches
  3. Transparent reporting allows you to measure progress and optimize campaigns

Your selection criteria should focus on industry alignment, scalability potential, and cultural fit. The upfront investment in outsourcing typically delivers better ROI than building in-house teams when factoring in recruitment, training, and management overhead.

The key to success lies in selecting a partner that aligns with your industry, budget, and growth stage while functioning as a true extension of your sales organization.