Outsourced lead generation can fill a sales team’s calendar, but booked meetings alone do not show whether a campaign is working. Lead quality, timely follow-up, and compliant outreach all affect the result.
Today’s B2B buyers have more ways to research suppliers without speaking to sales. In a Gartner survey of 646 B2B buyers conducted in August and September 2025, 67% preferred a buying experience without a sales representative, and 45% reported using AI during a recent purchase. That makes relevant outreach and clear qualification criteria especially important.
But building the team in-house costs more than salary, and cost savings are among the reasons outsourcing appeals to some businesses, though it is not the only one.
Lead generation outsourcing means hiring an outside provider to research, contact, or qualify prospective buyers. This guide compares ten providers, from full-service teams such as Helpware to specialists in appointment setting, contact data, and LinkedIn outreach. It also explains pricing and the questions to ask before signing.
Our rankings are compiled using publicly available information and objective evaluation criteria. We strive to ensure that every ranking is fair, transparent, and based on the same methodology for all companies.
Key Takeaways
- Full-service providers combine research, outreach, qualification, and handoff. Specialists focus on narrower tasks, such as data or LinkedIn campaigns.
- Compare prices by scope and billing period. A small channel package is not equivalent to a dedicated SDR team.
- Define a qualified lead, meeting acceptance rules, and handoff responsibilities before launching a campaign.
- For regulated markets, verify the security and outreach controls that apply to the work, not just statements on a provider website.
Top Picks by Use Case
| Use case | Provider | Why consider it |
|---|---|---|
| Regulated industries and connected sales operations | Helpware | Lead generation, sales, and customer success services; published security credentials |
| Appointment setting with annual targets | Belkins | Packages organized around annual appointment volumes |
| Technology and SaaS in North America | Martal Group | Tech-focused programs and onshore sales representatives |
| Global, multilingual campaigns | Callbox | International teams and multiple outreach channels |
| Flexible managed SDR capacity | CIENCE | Managed SDR services paired with graph8 |
| Phone and email with published prices | SalesRoads | Published pricing per four-week period |
| US-based SDR delivery | SalesHive | US core team with an offshore calling option |
| Prospect research and contact data | LeadGenius | Research and verified data without outreach |
| UK and EU prospecting | Sopro | Managed multichannel outreach and published privacy practices |
| Lower-cost LinkedIn campaigns | Cleverly | LinkedIn packages starting at $397 per month |
What Lead Generation Outsourcing Covers
Lead generation providers do different jobs. Before comparing companies, decide which parts of prospecting your team wants to outsource.
| Service type | What it covers | Best fit |
|---|---|---|
| Full-service lead generation | Research, multichannel outreach, qualification and handoff | You need a managed top-of-funnel program |
| Outsourced SDR services | Dedicated representatives prospecting and qualifying accounts | You need sales capacity without direct hiring |
| Appointment setting | Outreach and meeting booking against agreed criteria | You primarily need qualified sales conversations |
| Lead research services | Contact data, account research and verification | Your internal team handles outreach |
| Channel-specific outreach | Managed LinkedIn, email or another channel | You want to test or expand one channel |
A full-service provider may combine several categories. B2B lead generation services can cover the process from prospect research to qualified meetings, while lead research services focus on supplying usable contact data. Outsourced SDR services provide representatives who work target accounts under an agreed process.
Channel choice matters too. Cold email lead generation can reach many accounts, but deliverability and targeting need close attention. LinkedIn lead generation and phone outreach offer different ways to reach buyers. Choose the channel based on your audience and the kind of conversation you need.
What Outsourced Lead Generation Costs
Many providers quote prices after discussing the campaign. Published examples use different pricing models, so compare what each package includes.
| Pricing model | How it works | Examples |
|---|---|---|
| Monthly team or SDR retainer | A defined team or SDR allocation | SalesRoads: $11,950 per four weeks for one SDR; Callbox: estimated $16,000–$32,000 per month per campaign team |
| Flat monthly fee | Set monthly charge for an agreed scope | SalesHive: quoted flat fee; month-to-month option |
| Per full-time equivalent (FTE) | Price based on dedicated team members | Helpware: per-FTE monthly pricing; 30–60-day pilots |
| Channel or service package | Price for a specific channel or service | Cleverly: LinkedIn from $397/month; outsourced SDR services from $3,000/month |
Belkins advertises appointment-setting services from $5,000 per month. CIENCE combines setup, platform, and per-SDR fees. Martal Group uses a flat monthly fee and a three-month initial engagement. Check minimum commitments, setup costs, and what happens when a meeting is canceled or a prospect does not qualify.
For appointment-setting programs, cost per qualified meeting held is more useful than monthly cost alone. Also look at the share of meetings your sales team accepts and the pipeline that follows. For research-only work, evaluate contact accuracy and coverage instead.
An in-house team has recruitment, management, data, and software costs as well. The US Bureau of Labor Statistics puts the median wage for wholesale and manufacturing sales representatives at $76,460 a year (May 2025), before benefits, tools, data, and management time. That is not a dedicated SDR salary benchmark, but it illustrates why comparing only a provider’s fee with base pay is incomplete. The same cost considerations apply to SaaS sales outsourcing.
The 10 Best Lead Generation Outsourcing Companies
1. Helpware: Best Overall for Regulated Industries
Helpware combines lead research, outbound outreach, appointment setting, and sales support with customer success services. Founded in 2015, the company reports more than 4,000 employees across 19 locations in 11 countries. This broader service coverage makes it relevant to businesses that want prospecting and later customer interactions coordinated through one provider.
- Services: Lead research, outbound outreach, appointment setting, outsourced SDRs, and account management
- Channels: Phone, email, and LinkedIn; support in 45+ languages
- Delivery: Onshore, nearshore, and offshore locations, including the US, Puerto Rico, Mexico, the Philippines, Ukraine, Uganda, Georgia, and other European locations
- Security and compliance: Publishes SOC 2 Type II, ISO 27001, ISO 9001, and information about HIPAA, GDPR, and PCI DSS. Confirm the scope applicable to your campaign.
- Pricing: Monthly per-FTE pricing and 30–60-day pilots. The company describes wider organizational scaling capacity from 5–10 to 500+ FTE in 90–120 days; this is not a guaranteed lead-generation ramp.
Look elsewhere if: You need a small pay-per-meeting arrangement or a low-cost single-channel trial. Helpware prices by team, not by meeting.
Clutch rating: 4.8
2. Belkins: Best for Appointment Setting with Yearly Targets
Founded in 2017, Belkins focuses on B2B appointment setting and outbound prospecting. It offers programs organized around annual appointment goals and has offices in Delaware, Colorado, Illinois, and London, with teams in the US and Ukraine.
- Services: Appointment setting, cold email, cold calling, LinkedIn outreach, lead research, ABM, and outsourced SDRs
- Channels: Email, phone, voicemail, SMS, WhatsApp, LinkedIn, and paid ads
- Delivery: US and Ukraine
- Security and compliance: Its privacy policy addresses GDPR; request relevant operational documentation.
- Pricing: Appointment setting from $5,000/month; packages targeting 100+ or 200+ appointments annually
Look elsewhere if: You only need a few meetings or a short, limited test. Its published packages are built around longer-term appointment targets.
Clutch rating: 4.9
3. Martal Group: Best for Tech and SaaS in North America
Martal Group has provided outsourced sales services since 2009, with a focus on technology businesses including SaaS, cybersecurity, and fintech. Its programs use experienced sales representatives and begin with a three-month pilot.
- Services: Outbound lead generation, appointment setting, outsourced SDRs, inbound qualification, and ABM
- Channels: Email, LinkedIn, and phone
- Delivery: 200+ onshore sales executives; approximately 60% US, 20% Canada, and the remainder in Europe and Latin America
- Security and compliance: Privacy policy references GDPR, CASL, CAN-SPAM, and CCPA/CPRA.
- Pricing: Flat monthly fee quoted individually; three-month pilot followed by monthly subscription
Look elsewhere if: You cannot commit to a three-month starting period or need a provider focused on a non-tech industry.
Clutch rating: 4.8
4. Callbox: Best for Global, Multilingual Campaigns
Callbox provides multichannel B2B lead generation and appointment setting for international campaigns. Founded in 2004, it reports more than 700 full-time employees and six offices across four continents.
- Services: Appointment setting, lead generation, outsourced SDRs, ABM, demand generation, events, and data research
- Channels: Phone, email, social, chat, events, and AI voice agents alongside human SDRs
- Delivery: Offices on four continents; SDR coverage in seven or more languages
- Security and compliance: States GDPR- and CCPA-aligned data practices; verify the applicable controls.
- Pricing: Estimated $16,000–$32,000/month per campaign team; confirm with a quote
Look elsewhere if: You need a smaller-scale engagement. The cited range is an estimate, not a confirmed minimum.
Clutch rating: 4.6
5. CIENCE: Best for Month-to-Month SDR Capacity
CIENCE combines managed SDR services with the graph8 sales platform. Its model may suit companies that want outreach operations and supporting software managed together.
- Services: Outbound and inbound SDRs, appointment setting, cold email, cold calling, demand generation, and B2B data
- Channels: Phone, email, LinkedIn, chat, and ads
- Delivery: US, Europe, and offshore options
- Security and compliance: SOC 2 Type II is listed in its published information.
- Pricing: Setup, platform, and per-SDR charges with month-to-month terms
Look elsewhere if: You want a single all-inclusive price or a service without a related software platform.
Clutch rating: 4.2
6. SalesRoads: Best for Phone and Email with Published Pricing
SalesRoads is a Boca Raton-based appointment setting company that acquired VSA Prospecting in January 2025. It concentrates on phone and email prospecting and publishes pricing for different SDR team sizes.
- Services: Outbound and inbound appointment setting, lead generation, SDR outsourcing, account reactivation, and list building
- Channels: Phone and email
- Delivery: No specific public staffing locations
- Security and compliance: No public information
- Pricing: $11,950 per four weeks for one SDR, rising to $43,150 per four weeks for six; strategist, coach, and research support included; no long-term commitment
Look elsewhere if: You need LinkedIn outreach or a budget substantially below the published one-SDR price.
Clutch rating: 4.9
7. SalesHive: Best for US-Based SDR Teams With Flexible Delivery
SalesHive provides outsourced SDR services focused on cold calling and email outreach. It combines US-based sales representatives with its own AI platform for prospect research and email personalization. Companies can also choose a lower-cost offshore calling option. Founded in 2016, SalesHive has operated remotely since launch.
- Services: Cold calling, email outreach, list building, intent signals, appointment setting, and SDR outsourcing
- Channels: Phone and email
- Delivery: Core SDR team based in the US; separate lower-cost offshore calling options
- Security and compliance: No public information; request applicable documentation
- Pricing: Flat monthly fee quoted individually, no setup charges; month-to-month and discounted annual plans
Look elsewhere if: You need a LinkedIn or ABM specialist. If strict security documentation is required, confirm its availability before signing.
Clutch rating: Unavailable
8. LeadGenius: Best for Outsourced Lead Research and Data
LeadGenius specializes in B2B contact research and verification. It identifies prospects, maps buying committees, and updates contact records in CRM and marketing systems. Unlike most companies here, it does not conduct outreach or book meetings.
- Services: Contact research, buying committee mapping, contact monitoring, and CRM or marketing-platform data delivery
- Channels: None; data and research only
- Delivery: Researchers and data strategists in more than 30 countries
- Security and compliance: States alignment with GDPR, CCPA, and LGPD
- Pricing: Custom quote based on needs and scale; free data sample available
Look elsewhere if: You need someone to contact prospects and book meetings. Your team or another partner must handle that work.
Clutch rating: Unavailable
9. Sopro: Best for UK and EU Prospecting Campaigns
Sopro is a UK-based agency that combines prospect research with managed multichannel outreach. Founded in 2015, it has offices in Brighton, Miami, and Skopje, and reports more than 300 employees. Its published GDPR and PECR practices are relevant for UK and European campaigns.
- Services: Lead generation, appointment setting, cold email, multichannel and account-based outreach, intent tracking, and web chat
- Channels: Email, LinkedIn, phone, display ads, and gifting
- Delivery: UK, US, and North Macedonia
- Security and compliance: States GDPR and PECR compliance and describes legitimate interest and data protection impact assessments
- Pricing: Custom quote; no minimum contract requirement
Look elsewhere if: You primarily want a dedicated phone-led SDR team; its described approach emphasizes email, LinkedIn, and supporting channels.
Clutch rating: 5.0
10. Cleverly: Best for Lower-Cost LinkedIn Outreach
Cleverly offers managed LinkedIn lead generation alongside cold email, cold calling, and outsourced SDR services. LinkedIn packages start at $397 per month, offering a lower-cost way to test that channel. Originally established in Los Angeles, it now works with a remote team.
- Services: LinkedIn lead generation, cold email, cold calling, appointment setting, and outsourced SDRs
- Channels: LinkedIn, email, and phone
- Delivery: US-based account managers; most cold callers based in Egypt
- Security and compliance: No public information; request applicable documentation
- Pricing: LinkedIn from $397/month; outsourced SDR from $3,000/month; month-to-month cold email plans
Look elsewhere if: You need extensive enterprise ABM or documented security controls that the provider cannot substantiate.
Clutch rating: 4.3
Lead Generation Outsourcing Companies Compared
| Provider | Channels | Delivery | Published security and compliance information | Pricing |
|---|---|---|---|---|
| Helpware | Phone, email, LinkedIn | Onshore, nearshore, offshore | SOC 2 Type II, ISO 27001; published HIPAA, GDPR and PCI DSS information | Per FTE; 30–60-day pilots |
| Belkins | Email, phone, LinkedIn, SMS, ads | US, Ukraine | GDPR in privacy policy | From $5,000/month |
| Martal Group | Email, LinkedIn, phone | US, Canada, EU, Latin America | Privacy policy references GDPR, CASL, CAN-SPAM, CCPA | Flat monthly fee; 3-month pilot |
| Callbox | Phone, email, social, chat, events | Four continents | States GDPR and CCPA compliance | Estimated $16,000–$32,000/month per team |
| CIENCE | Phone, email, LinkedIn, chat, ads | US, Europe, offshore | SOC 2 Type II | Setup, platform and per-SDR fees |
| SalesRoads | Phone, email | Not specified | Specific certifications not identified | From $11,950 per four weeks |
| SalesHive | Phone, email | US core team; offshore option | Specific certifications not identified | Flat monthly fee (quote) |
| LeadGenius | Research only | 30+ countries | States GDPR, CCPA and LGPD alignment | Custom quote |
| Sopro | Email, LinkedIn, phone, ads | UK, US, North Macedonia | States GDPR and PECR compliance | Custom quote; no minimum contract |
| Cleverly | LinkedIn, email, phone | US managers; callers primarily in Egypt | Specific certifications not identified | LinkedIn from $397/month |
Take note that these prices cover different services and billing periods. Published certifications, privacy policies, and regulatory claims provide different types of assurance. Confirm the scope and supporting evidence with each provider.
Lead Generation Vendor Evaluation Scorecard
A provider may book meetings without producing useful sales opportunities. Before signing, check qualification standards, handoff procedures, and how results will be measured.
Score each applicable question from 0 to 2: 0 = no clear answer or evidence; 1 = clear answer with limited documentation; 2 = clear process supported by documentation, reporting examples, or contractual commitments.
| # | Question to ask | What a strong answer looks like |
|---|---|---|
| 1 | How do you define a qualified lead? | Written criteria agreed with your team, including role, company size, need and timeline |
| 2 | What counts as a delivered meeting? | Clear distinction between booked and held meetings, including no-shows and cancellations |
| 3 | How fast do you hand qualified leads to sales? | Agreed timeframe, with lead details recorded in your CRM |
| 4 | What information accompanies a lead? | Contact details, outreach history, notes, and reason for interest |
| 5 | Who owns prospect data and outreach assets? | Written terms covering lists, campaign history, domains, and access at termination |
| 6 | What if a lead misses our criteria? | Documented review, rejection, or replacement process |
| 7 | How do you manage email deliverability? | Sending procedures, domain configuration, bounce monitoring, and remediation |
| 8 | Which privacy and telemarketing rules apply? | Relevant requirements and procedures for each market and channel |
| 9 | What evidence supports security claims? | Current and relevant audit reports, policies, certificates, or other documentation |
| 10 | What reporting will we receive? | Regular reporting on qualified leads, meetings held, sales acceptance, and pipeline |
The importance of these questions is echoed by the community:
“For complex B2B, I’d set acceptance criteria before any outreach starts:
- exact stakeholder/persona rules
- disqualifying company types
- trigger/pain signal required
- what counts as a qualified meeting
- what does not count even if someone books
Otherwise the agency can technically hit the KPI while creating sales waste.”
Mark non-applicable questions as N/A. A data-only provider, for example, does not manage outreach domains or appointment handoffs. Use the scores to compare how clearly each provider explains its processes and supports its claims.
Lead handoff deserves separate attention. Agree on how quickly qualified prospects reach sales and what information follows them. If you also need outsourced inside sales or customer success outsourcing, confirm how the teams will share context and divide responsibilities.
Compliance Checks by Industry
Lead generation requirements depend on the industry, target market, data involved, and outreach channels. Confirm which obligations apply before launching a campaign.
| Industry or market | Requirements to check | What to request |
|---|---|---|
| Healthcare and telehealth | HIPAA when PHI is involved; applicable TCPA rules | Relevant data and outreach procedures, HIPAA training, and a BAA when required |
| Fintech and banking | GLBA for covered data; PCI DSS if card data is involved; TCPA | Relevant security evidence and applicable calling or recording policies |
| EU and UK outreach | GDPR, UK GDPR, and channel rules including UK PECR | Lawful-basis documentation, outreach procedures, and applicable agreements |
| Canadian outreach | CASL | Consent or exemption records, identification and unsubscribe procedures |
| US cold calling | TCPA, Do Not Call, and federal/state telemarketing rules | List screening, calling-hour, and applicable consent controls |
Contacting healthcare organizations does not automatically mean a provider processes PHI. For healthcare lead generation, determine whether a business associate agreement is needed. For telemarketing outsourcing, review applicable Do Not Call and calling restrictions.
Red Flags Before You Sign
These are the signs you might want to look into the potential provider closer:
- No written definition of a qualified lead. Without agreed criteria, you may pay for meetings with prospects who do not fit your target audience.
- Long commitments with limited performance safeguards. Review reporting obligations, termination terms, and scope-change options.
- Unclear prospect data sources. Ask how contact information is obtained and verified. Weak sourcing can create accuracy, privacy, and deliverability problems.
- Activity-only reporting. Calls and emails sent do not show whether the campaign produces useful results. Request metrics suited to the service, including meetings held, pipeline, or contact accuracy.
- Compliance claims without evidence. Request documentation relevant to your campaign before signing.
How to Choose a Lead Generation Partner
Start with the activities you need outsourced, the markets you want to reach, and the outcomes you will measure. Then compare providers that fit.
- Regulated industries: Consider Helpware and CIENCE and confirm their documented controls cover the campaign’s actual data and outreach requirements.
- Technology buyers in North America: Compare Martal Group, SalesRoads, and SalesHive on audience experience, cold calling services, channel mix, and price.
- Several countries or languages: Shortlist Callbox, Sopro, and Helpware. Confirm language coverage and local outreach requirements.
- Your internal team already handles outreach: Consider LeadGenius for prospect research and contact data. Check accuracy, coverage, and CRM usability.
- One-channel test on a small budget: Compare channel-specific packages such as Cleverly’s LinkedIn service and clarify exactly what the fee includes.
- Support beyond lead generation: Consider providers offering sales and customer success services, but confirm responsibilities and handoffs.
Agree on a pilot with clear goals, reporting, and review dates. A 60–90-day period may suit some outbound campaigns, although duration depends on setup and sales cycle length. Helpware offers 30–60-day pilots, while Martal Group starts with a three-month engagement.
For appointment setting, measure qualified meetings held, sales acceptance, and pipeline. For research services, measure contact accuracy and coverage. If you plan to bring the work in-house later, agree on data access, documentation, and transition responsibilities before signing.
For later sales stages, compare broader sales outsourcing companies and inside sales outsourcing companies.
Connect Lead Generation with the Rest of Your Sales Process
Qualified leads are more valuable when your sales team receives the right information and follows up promptly. Helpware provides lead research, outreach, appointment setting, sales, and customer success services, allowing companies to coordinate these activities through one partner.
With delivery teams supporting more than 45 languages and experience serving regulated industries, Helpware can help businesses build lead generation programs around their market and operational requirements.
Talk to Helpware about a 30- to 60-day pilot and discuss how outsourced lead generation could fit your sales process.
