Scaling outbound sales across the United States requires more than just cold emails and call scripts. From SaaS startups to enterprise B2B organizations, companies need structured SDR programs, targeted account research, and measurable pipeline generation. Below are the top outbound sales agencies in the U.S. that specialize in appointment setting, lead generation, and building predictable revenue engines.

Net New Solutions positions itself as a specialist in pipeline creation - top and mid-funnel outbound business development that includes cold calling, emailing, sales enablement and GTM planning. They advertise tailored outbound business development solutions and managed top-of-funnel services that deliver demos, decision-makers and booked meetings for clients.
Highlights
Check them out: https://netnew.solutions/


Growth Alliance is a B2B growth agency that blends account-based strategies with outbound execution to drive pipeline and revenue. It works well for companies seeking tightly-aligned marketing + SDR outreach to target high-value accounts.
Highlights
Check them out: https://growthalliance.io/

CIENCE combines human researchers, SDRs, and orchestration software. Their model enables large-scale outbound campaigns with structured execution and data-backed targeting. They build targeted lists, run multichannel campaigns (cold email, LinkedIn outreach, phone calls), and provide sales development specialists who book qualified meetings and create predictable pipeline for B2B sellers. CIENCE emphasizes data enrichment, market research and campaign management so your internal resources can focus on closing deals and revenue growth.
Highlights
Check them out: https://www.cience.com/

SalesRoads is a U.S. appointment-setting and sales outsourcing agency that runs disciplined outbound campaigns to generate high quality leads and qualified meetings. They combine market research and bespoke prospecting to fill the top of the sales funnel, then hand off meetings to your in-house sales team - reducing overhead costs while increasing conversion rates and measurable revenue growth.
Highlights
Check them out: https://salesroads.com/

MarketStar provides Sales as a Service - embedded sales teams that act like part of your company. They offer outbound sales, partner/channel activation, and inside-sales programs that scale across enterprise segments. MarketStar’s model is useful when you need a dedicated team to run outbound campaigns, manage sales activities, and drive sustainable growth without building a full internal team immediately.
Highlights
Check them out: https://www.marketstar.com/

memoryBlue is a U.S. sales development specialist focused on outsourced SDR programs that generate leads, qualify prospects, and book first qualified meetings. They provide SDR recruitment, coaching, and execution to amplify sales development efforts - ideal when you want experienced sales development representatives to drive pipeline and hand off high quality prospects to closers.
Highlights
Check them out: https://memoryblue.com/

EBQ (U.S.-based) runs appointment-setting, outbound lead generation, and CRM-powered sales operations. Their teams combine outreach, list building, and data enrichment to deliver qualified appointments and improve the sales funnel. EBQ positions itself as an extension of your internal sales and marketing teams to increase sales productivity and predictable pipeline.
Highlights
Check them out: https://ebq.com/

Leadium builds and runs SDR teams, combining outbound strategies with research-driven list building. They emphasize sales development, targeted outreach, and delivering qualified leads and appointments that fit your ICP - helping companies scale pipeline and reduce the friction of hiring and training an in-house SDR team.
Highlights
Check them out: https://www.leadium.com/

LeadGenius combines human research, data enrichment and outreach enablement to support outbound sales and lead generation efforts. While they’re known for world-class contact data and buyer intelligence, their services feed outbound campaigns and help sales teams focus on qualified opportunities and conversion improvements across multiple industries.
Highlights
Check them out: https://www.leadgenius.com/

Belkins is a B2B lead generation and appointment-setting agency serving U.S. clients with omnichannel outbound strategies. They deliver personalized email outreach, cold calling, and LinkedIn outreach to book qualified meetings and create meaningful conversations - positioning themselves as a reliable partner for companies that want more leads with lower overhead.
Highlights
Check them out: https://belkins.io/

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