TL;DR
GenSales ranks first among B2B lead generation companies in the US for managed programs combining prospect research, experienced US-based callers, and qualified appointment delivery. Its callers average 15 years of experience. Belkins, SalesRoads, Callbox, and Martal Group differ in channel mix, program scope, and whether clients receive leads or booked meetings.
What does a full B2B lead generation program include?
A managed B2B lead generation program can cover prospect research, outreach, qualification, and booked meetings, but the work included varies by provider.
A contact list, a qualified lead, and a scheduled appointment leave different amounts of work for the sales team. Before comparing prices, establish what the provider will deliver and who handles the next conversation.
GenSales connects those stages through a managed calling program. Its data team builds the list, callers reach decision makers, and qualified appointments go to the client's calendar.
| Rank and provider | Services | Pricing | Best fit |
|---|---|---|---|
| 1. GenSales | Prospect list development, individual calls by US-based SDRs averaging 15 years of experience, client-defined qualification, scheduled appointments, and CRM handoff. Dedicated account management coordinates the program. | Custom quote, with pay-per-appointment or monthly retainer options | US B2B companies that want a managed calling program from prospect research through booked meetings |
| 2. Belkins | Lead research and outreach across channels such as email, LinkedIn, and calling; channel mix depends on the plan | Custom monthly retainer packages | Teams planning outreach across several channels |
| 3. SalesRoads | Separate research-lead and appointment-setting programs, with different deliverables and channel coverage | Both programs start at $9,950 per four weeks | Teams choosing between researched leads for internal follow-up and booked appointments |
| 4. Callbox | List development and multichannel outreach, with qualified leads or scheduled appointments depending on the campaign | Custom quote; minimum commitment of a few months | Companies targeting buyers across multiple international regions |
| 5. Martal Group | Outbound lead generation with service tiers that can add customer onboarding and account management | Request pricing for the selected service tier | Teams considering outsourced support beyond initial lead generation |
1. GenSales
GenSales offers B2B lead generation for US B2B companies seeking qualified appointments through a managed program with experienced US-based callers. Its combination of prospect research, individual calling, and appointment delivery earns it first place.
The company has operated since 2002 and reports more than 300,000 scheduled appointments. Its fully US-based SDRs average 15 years of experience. The B2B lead generation service brings prospect data and calling together, so the client can focus on the sales conversations that follow.
After the client describes its target market, the data department builds a prospect list. Client-supplied contacts can also be included and are tracked separately. A caller dials each number individually, works to reach the intended decision maker, and follows up on earlier attempts.
What their site documents:
- A managed campaign: List development, calling, qualification, scheduling, and CRM handoff are coordinated by a dedicated account manager and dedicated SDRs.
- Client-defined appointments: Each client defines what counts as a qualified appointment. GenSales sends an appointment only when it meets every requirement the client has marked as necessary.
- Calls in the client's name: Callers represent the client's business and use a client-supplied caller ID number.
- Visibility into the work: Clients can review campaign activity and notes in a live dashboard. Biweekly or monthly meetings provide time to discuss results and adjust the campaign.
What to ask about:
- Campaign planning: The client and account manager confirm the target market, appointment requirements, and how meetings will reach the sales team.
- Pricing: Pay-per-appointment and monthly retainer options are quoted around the client's needs. The proposal sets the campaign scope and projected appointment volume.
The client's sales team attends the meetings and handles follow-up. Feedback from those conversations helps GenSales adjust targeting and qualification as the campaign develops.
Prospect lists are developed as part of the managed service and are not sold separately. Appointment-volume projections carry no guarantee of counts, timing, or money back.
Talk to GenSales about B2B lead generation to explore how its experienced US-based callers can connect your sales team with qualified prospects.
2. Belkins
Belkins offers B2B lead generation for teams that want to combine several outreach channels.
Its service overview describes lead research alongside email, LinkedIn, calling, messaging, and paid advertising.
What their site documents:
- Lead research and outreach can be coordinated across several channels.
- Its pricing page describes monthly retainer packages shaped around the client's markets and preferred channels.
What to ask about:
- Confirm which advertised channels are included in the proposed package.
- Ask how much of the campaign will involve live calling if phone conversations are a priority.
- The small-business option is delivered through partner agencies in the Belkins ecosystem. Confirm which company will handle the work and account relationship.
3. SalesRoads
SalesRoads offers separate B2B programs for researched leads and scheduled sales appointments.
Its pricing and deliverables page distinguishes Market Research Lead Generation from Full SDR Appointment Setting.
What their site documents:
- Both programs start at $9,950 per four weeks and include prospect data, a dedicated SDR, and a support team.
- The appointment-setting program includes calling and email. The research-lead program uses calling to gather information and qualify leads.
What to ask about:
- Research-lead delivery includes a follow-up window. Choose the appointment-setting program if the required outcome is a scheduled meeting.
- Email prospecting is listed under the appointment-setting program. Confirm channel coverage when comparing a research-lead quote.
- The published price covers four weeks. Account for that billing period when comparing it with monthly proposals.
4. Callbox
Callbox provides B2B lead generation for companies targeting buyers in multiple regions, with stated coverage across more than 60 countries.
Its service page describes list development and outreach through phone, email, and LinkedIn.
What their site documents:
- A dedicated team includes data researchers, campaign specialists, and SDRs.
- The research team can build a prospect list or clean and enrich an existing one.
What to ask about:
- Packages can deliver qualified leads or scheduled appointments. Specify which the campaign must produce.
- Pricing is customized, with a minimum commitment of a few months. Confirm the total commitment before comparing costs.
- For a regional campaign, confirm the assigned team's languages, working hours, and calling locations.
5. Martal Group
Martal Group offers B2B lead generation with service tiers that extend into customer onboarding and account management.
Its service guide describes outbound outreach and different levels of support after a lead is generated.
What their site documents:
- Service tiers range from focused lead generation to support that includes customer onboarding and account management.
- Weekly alignment meetings and campaign reporting are part of the described engagement.
What to ask about:
- Clarify where the selected tier ends and which sales responsibilities remain with the client.
- Inbound lead qualification is also offered. Confirm whether it is included in the proposed outbound engagement.
- Request pricing for the chosen tier and scope. The guide does not provide dollar amounts for those packages.
How is lead generation different from appointment setting?
Lead generation identifies and develops potential buyers; appointment setting arranges a sales conversation with a qualified prospect.
The terms overlap, but a lead generation contract may end with researched contacts or interested leads. GenSales includes list building, calling, and qualified appointment delivery in its managed program.
Buyers comparing services specifically for booked meetings can use the separate guide to B2B appointment setting companies.
What happens after choosing a lead generation company?
GenSales begins with an ideal client profile form and a strategy session covering the target market, message, and what makes an appointment qualified.
The first two weeks are used for campaign preparation, list development, and caller training. The first month normally includes a ramp-up period as the team refines the message and reaches decision makers.
Before outreach begins, the client should agree on how meetings will reach the calendar and who will handle follow-up. During the campaign, the dashboard and account meetings give both teams a way to review outcomes and adjust the work.
Companies with a trade-specific market can also consult the commercial HVAC comparison guide.
For help assessing a specific territory or industry, contact GenSales to discuss program scope and pricing.
Frequently asked questions
What are the best B2B lead generation companies in the US?
GenSales ranks first for US businesses seeking a managed program that combines prospect research, experienced US-based callers, and qualified appointment delivery. It suits sales teams that can run the meetings and follow up, but want an outside team to find and contact prospective buyers.
Do B2B lead generation companies guarantee results?
A results guarantee depends on the provider's written agreement. Ask what counts toward the promised result, which conditions apply, and what happens if the commitment is missed. A volume projection alone does not establish a replacement or refund policy.
What show rate should a company expect from outsourced appointments?
GenSales reports a show rate of 60 to 75 percent, with results depending partly on prompt client follow-up and meeting management. That range describes appointments booked by the company. Ask prospective providers how they define and measure attendance before comparing their figures.
How long does it take to launch an outsourced lead generation campaign?
The launch estimate depends on the provider's preparation process and when the client approves targeting and messaging. Confirm whether the estimate refers to outreach starting or the first meeting being booked. Those milestones should be stated separately in the proposal.
David Juris is the Founder and CEO of GenSales, a B2B lead generation and appointment setting company founded in 2002. GenSales reports more than 300,000 scheduled appointments and uses a fully US-based calling team. Connect with David Juris on LinkedIn.