Best SDR & Lead Gen Services Tools (2025)

CIENCE is a B2B lead generation provider that combines AI-powered software with managed SDR teams to build qualified sales pipeline for growth-focused companies.

Dealfront is a Europe-first go-to-market and sales intelligence platform that combines website visitor identification, B2B data, and intent signals to help revenue teams find and convert high-fit accounts.

demandDrive is an integrated sales, marketing, and technology agency that builds and manages outsourced SDR teams, inside sales programs, and full-funnel demand generation for B2B companies.

DemandZEN is a B2B demand generation and outsourced SDR agency that specializes in appointment setting and outbound lead generation for technology companies.

EBQ is a US-based outsourced sales, marketing, and customer experience partner that provides SDR, lead generation, CRM, and RevOps teams for B2B companies. ([ebq.com](https://ebq.com/?utm_source=openai))

Emapta is a global outsourcing and offshoring provider that builds dedicated, high-performing remote teams across sales, customer experience, finance, technology, and more, with transparent pricing and no salary markups.

ExpertCallers is a global call center outsourcing and B2B lead generation provider offering inbound and outbound support, SDR services, and multichannel customer engagement.

Flatworld Solutions is a global BPO and technology services provider that helps organizations outsource sales development, lead generation, customer support, and a wide range of back-office processes. It combines ISO-certified operations, AI-driven automation, and multi-channel contact centers to improve revenue and efficiency.

FullFunnel is a B2B go-to-market and revenue operations (RevOps) services firm that designs, staffs, and runs outsourced SDR, sales, and demand generation programs for organizations that need expert, scalable pipeline growth.

Green Leads is a B2B pipeline generation and appointment-setting agency that helps technology and SaaS companies generate qualified leads and sales-ready meetings worldwide.

Hit Rate Solutions is a Philippines-based, American-owned BPO call center that provides outbound lead generation, cold calling, appointment setting, and 24/7 customer support for small and mid-sized businesses across the U.S., Canada, Australia, and beyond.

HomeX Virtual Agency is a Kosovo-based virtual assistant and call center partner that builds dedicated remote teams for cold calling, sales development, lead generation, customer support and back-office workflows for U.S. and international businesses.

Inside Sales Solutions is a B2B sales development and lead generation agency that helps technology companies build qualified pipeline through outsourced SDRs, appointment setting, and data-driven marketing services.

Inside-Global is a global SDR and inside sales outsourcing agency that helps B2B tech, SaaS and software companies generate qualified pipeline, appointments and revenue opportunities.