B2B Sales & Marketing Service Providers and Tools

1840 and Company

SDR & Lead Gen Services

1840 & Company is a global business process outsourcing and staffing provider that helps businesses hire, manage, and pay vetted remote talent and teams in over 150 countries. They specialize in cost-effective SDR, sales, customer support, back-office, and specialized roles via flexible engagement models.

3Q Digital

Media Buying Agencies

3Q Digital (now 3Q/DEPT) is a data-driven growth marketing and media-buying agency that helps ambitious brands scale through paid media, SEO, CRO, and analytics.([3qdept.com](https://www.3qdept.com/solutions/?utm_source=openai))

6sense

ABM & Intent Platforms

6sense is an AI-powered revenue intelligence and account-based marketing platform that uses intent data and predictive modeling to help B2B companies identify in-market accounts, orchestrate campaigns, and grow pipeline. ([6sense.com](https://6sense.com/platform/account-based-marketing?utm_source=openai))

Abstrakt Marketing Group

SDR & Lead Gen Services

Abstrakt Marketing Group is a St. Louis–based B2B lead generation and business growth agency that provides outsourced SDR, appointment setting, digital marketing, creative, and Salesforce consulting services for growing companies.

Accenture

Systems Integrators

Accenture is a leading global professional services and systems integration firm that helps enterprises build their digital core, optimize operations, and accelerate growth using cloud, data and AI-driven solutions.([newsroom.accenture.com](https://newsroom.accenture.com/fact-sheet?utm_source=openai))

Acquirent

SDR & Lead Gen Services

Acquirent is an outsourced B2B sales and lead generation firm that recruits, trains, and manages dedicated inside sales teams for companies ranging from startups to Fortune 500 enterprises.

Act-On

Marketing Automation

Act-On is a B2B marketing automation platform that helps marketing and sales teams run multichannel campaigns, score and nurture leads, and connect data across their MarTech stack.

ActiveCampaign

Marketing Automation

ActiveCampaign is an AI-powered marketing automation and CRM platform that helps businesses automate email, SMS, and cross-channel customer journeys to drive growth.

Adobe Analytics

Attribution & BI

Adobe Analytics is a digital analytics platform that delivers AI-powered web insights, attribution modeling and tight Adobe Experience Cloud integrations. ([business.adobe.com](https://business.adobe.com/products/adobe-analytics.html))

Ahrefs

SEO & Content Tools

Ahrefs is a SaaS SEO and AI marketing platform that helps marketers research keywords, analyze backlinks, audit websites, and track rankings to grow organic traffic.

Aircall

Dialers & VOIP

Aircall is a cloud-based business phone and call center platform that helps sales and support teams manage calls, SMS, and WhatsApp in one unified workspace with deep CRM and helpdesk integrations.

Allego

Enablement Platforms

Allego is an AI-powered revenue enablement platform that unifies learning, content management, coaching, and digital selling to help B2B teams win more deals.

Alleyoop

SDR & Lead Gen Services

Alleyoop is a sales development and demand generation agency that provides outsourced SDR teams, multi-channel outbound programs, and event support to help B2B companies build qualified pipeline.

Altimeter Group

Strategy Consulting

Altimeter Group, now operating as Altimeter, a Prophet company, is a research and strategy consulting firm that helps enterprises understand and act on digital disruption across customer experience, social business, and emerging technologies. ([slideshare.net](https://www.slideshare.net/slideshow/the-six-stages-of-digital-transformation/60665774?utm_source=openai))

AltiSales

SDR & Lead Gen Services

AltiSales is a B2B go-to-market and sales development firm that combines outsourced SDR teams, GTM consulting, and its own analytics software to build scalable outbound revenue engines.

Alyce

Gifting & Direct Mail

Alyce is an AI-powered B2B corporate gifting and direct mail platform that helps marketing, sales, and customer teams send highly personalized gifts that open doors, build pipeline, and deepen customer relationships.

Ambition

RevOps & Sales Analytics

Ambition is an AI-powered sales coaching, performance intelligence, and gamification platform that helps revenue teams drive productivity, accountability, and a winning sales culture.

Animalz

Creative & Content Agencies

Animalz is a specialized B2B content marketing and SEO agency that partners with SaaS, technology, and venture-backed companies to drive long-term organic growth through high-quality content. Their fully remote team of strategists, writers, and SEO experts designs and runs bespoke content programs for complex, technical audiences. ([animalz.co](https://www.animalz.co/))

Anyword

Content Creation & AI Writing

Anyword is an AI performance writing platform that generates and optimizes marketing copy across channels using predictive analytics trained on billions of data points. It helps marketers create scalable, on-brand content that reliably drives engagement and conversions.

Apollo.io

Sales Intelligence & Data

Apollo.io is an AI-powered sales intelligence and engagement platform that combines a massive B2B contact database with multichannel outreach, automation, and analytics.

Aviso AI

RevOps & Sales Analytics

Aviso AI is an end-to-end AI-powered revenue operating system that unifies revenue forecasting, pipeline inspection, conversation intelligence, sales engagement, and analytics so B2B sales and RevOps teams can run their entire go-to-market motion from a single platform.

Bandalier

SDR & Lead Gen Services

Bandalier provides fully managed, AI-supercharged outsourced SDR and BDR teams that build predictable pipeline for fast-growing B2B companies without the hiring or tech stack headaches.

Belkins

SDR & Lead Gen Services

Belkins is a B2B lead generation and appointment-setting agency that builds outbound engines for SaaS, technology, and other B2B companies. They deliver qualified meetings using omnichannel outreach, human-verified research, and CRM consulting services.﹀citeturn0search1turn11search3

Big Business Agency

SDR & Lead Gen Services

Big Business Agency is a Belfast-based B2B sales consulting and lead generation agency that uses HubSpot-centric technology, omnichannel advertising and workflow automation to build predictable, high-intent pipeline for complex B2B organisations.([bigbusinessagency.com](https://bigbusinessagency.com/))

Big Drop Inc

Dev & Design Agencies

Big Drop Inc is an award‑winning, full‑service digital agency specializing in custom web design, development, branding, and digital marketing for startups, SMBs, and global enterprises.([bigdropinc.com](https://www.bigdropinc.com/services/?utm_source=openai))

BigMarker

Video & Webinar Platforms

BigMarker is a browser-based webinar and digital events platform that lets organizations host highly customizable live, automated, and on-demand webinars, virtual conferences, and hybrid events without downloads.

Bizible

Attribution & BI

Bizible, now Adobe Marketo Measure, is a B2B marketing attribution platform that connects every marketing and sales touchpoint to pipeline and revenue so teams can prove and optimize ROI.

Bluewolf (IBM)

Systems Integrators

Bluewolf, an IBM company, is a global Salesforce consulting agency that designs, implements, and operates cloud-based customer and employee experiences across industries.

Bombora

ABM & Intent Platforms

Bombora provides B2B intent, identity, and audience data that helps sales, marketing, and advertising teams prioritize accounts, personalize outreach, and measure performance using a unique Data Co-op.([bombora.com](https://bombora.com/?utm_source=openai))

BoostUp

RevOps & Sales Analytics

BoostUp is an AI-powered Revenue Operations and Intelligence platform that unifies forecasting, pipeline analytics, deal inspection, and conversation intelligence for B2B revenue teams.

BotPress

Live Chat & Chatbots

Botpress is an AI agent and chatbot platform that lets teams design, deploy, and manage LLM-powered conversational experiences across web and messaging channels.

Bouncer

Email & Phone Validation

Bouncer is a GDPR-first SaaS platform for bulk and real-time email verification that helps marketing, sales, and product teams keep their contact data clean and improve inbox placement.

Brainshark

Enablement Platforms

Brainshark (now branded as Bigtincan Readiness) is a sales readiness platform that helps organizations create, deliver, and track multimedia training and coaching programs for customer-facing teams.

Brevo

Marketing Automation

Brevo (formerly Sendinblue) is an AI-powered, multichannel marketing and CRM platform that helps businesses send email, SMS, and WhatsApp campaigns, automate customer journeys, and manage sales in one place.

BrightEdge

SEO & Content Tools

BrightEdge is an enterprise SEO and content performance platform that helps brands plan, optimize, and measure organic and AI-driven search across large, complex web properties.([brightedge.com](https://www.brightedge.com/about?utm_source=openai))

BriteVerify

Email & Phone Validation

BriteVerify by Validity is a contact verification platform that validates email addresses, phone numbers, and postal addresses in real time and in bulk to keep marketing and CRM data clean and deliverable.

CaliberMind

Attribution & BI

CaliberMind is a B2B GTM intelligence and multi-touch attribution platform that unifies marketing, sales, and RevOps data so teams can see exactly how programs drive pipeline and revenue.

Callbox

SDR & Lead Gen Services

Callbox is a global B2B lead generation and SDR outsourcing company that combines human expertise with AI, proprietary technology and a large B2B database to deliver qualified leads and sales appointments.

Calling Agency

SDR & Lead Gen Services

CallingAgency is a New Castle, Delaware–based call center and B2B lead generation agency that provides cold calling, appointment setting, telemarketing and outbound SDR services for companies across multiple industries. ([clutch.co](https://clutch.co/profile/callingagency?utm_source=openai))

Capgemini

Systems Integrators

Capgemini is a global IT services and systems integration leader that helps enterprises transform their businesses with consulting, cloud, data, AI and managed services. ([capgemini.com](https://www.capgemini.com/about-us/?utm_source=openai))

Catalyst

Customer Success Tools

Catalyst is a customer success and customer growth platform that centralizes customer data, health, and workflows so CS and sales teams can reduce churn and grow recurring revenue.

Challenger Inc

Sales & Marketing Training

Challenger (now powered by Richardson) is a global provider of research-backed sales training, technology, and consulting focused on winning today’s complex B2B sale.([linkedin.com](https://www.linkedin.com/company/challengerinc?utm_source=openai))

Chatfuel

Live Chat & Chatbots

Chatfuel is a no-code AI chatbot and messaging automation platform that helps businesses automate sales, marketing, and support across WhatsApp, Instagram, Facebook Messenger, TikTok, and web chat.([chatfuel.com](https://chatfuel.com/))

ChatGPT (OpenAI)

Content Creation & AI Writing

ChatGPT by OpenAI is a multimodal AI assistant for writing, coding, analysis, and conversation, delivered via web, mobile, and desktop apps with consumer and enterprise plans.

Chorus.ai

RevOps & Sales Analytics

Chorus.ai (Chorus by ZoomInfo) is an AI-powered conversation intelligence platform that records, transcribes, and analyzes customer conversations to help revenue teams improve performance and close more deals.

ChurnZero

Customer Success Tools

ChurnZero is an AI-driven customer success platform that helps SaaS and subscription businesses reduce churn, drive product adoption, and grow recurring revenue by unifying customer data, automation, and digital engagement.

CIENCE

SDR & Lead Gen Services

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.

Cisco Webex

Video & Webinar Platforms

Cisco Webex is an AI-powered collaboration and customer experience platform that unifies meetings, webinars, calling, messaging, events, and devices for secure hybrid work.([webex.com](https://www.webex.com/))

Clari

RevOps & Sales Analytics

Clari is an AI-powered revenue operations and sales analytics platform that unifies forecasting, pipeline management, sales engagement and conversation intelligence so B2B teams can run revenue end-to-end.

Claude (Anthropic)

AI & Automation Tools

Claude, developed by Anthropic, is an enterprise-grade AI assistant and family of large language models for writing, coding, analysis, and workflow automation, available via apps and API.

Clay

Sales Intelligence & Data

Clay is an AI-native go-to-market platform that unifies data from 150+ providers, enriches leads, and automates highly personalized outbound workflows for B2B teams.

Clearbit

Sales Intelligence & Data

Clearbit by HubSpot is a B2B data enrichment and sales intelligence platform that helps companies create, capture, and convert demand from ideal customers with real-time company and contact data.([clearbit.com](https://clearbit.com/platform/enrichment?utm_source=openai))

Clearbit Reveal

Intent Data Providers

Clearbit is a B2B marketing intelligence provider that enriches leads and accounts with real-time data and uses its Reveal IP intelligence to turn anonymous website traffic into actionable intent signals.

Clearout

Email & Phone Validation

Clearout is an AI-powered email and phone validation, email finder and prospecting platform that helps businesses clean their databases, protect sender reputation and reach real customers.([clearout.io](https://clearout.io/?utm_source=openai))

Clearscope

SEO & Content Tools

Clearscope is a content-first SEO platform that helps marketing and editorial teams research topics, write and optimize content, and monitor performance across search and AI answer engines.

ClickFunnels

Web & Funnel Builders

ClickFunnels is an all-in-one sales funnel, website, and marketing platform that helps businesses build high-converting funnels, manage campaigns, and sell online without needing developers.

ClientSuccess

Customer Success Tools

ClientSuccess is a customer success management platform that helps B2B subscription businesses onboard, retain, and grow customers by centralizing health, usage, renewal, and engagement data.

Close

CRM

Close is a sales engagement CRM built for startups and SMBs, combining pipeline management with built‑in calling, SMS, email, automation and AI tools. It helps inside sales teams move faster, stay organized, and close more deals with less manual work.

CloudTalk

Dialers & VOIP

CloudTalk is an AI-powered cloud phone and call center platform for sales, support, and operations teams, offering global numbers, smart routing, AI dialers, and deep CRM integrations.

CloudTask

RevOps Consulting

CloudTask is a RevOps-focused marketplace and outsourced revenue partner that helps B2B companies hire vetted sales, marketing, customer success, and support talent—as well as agencies and software—to accelerate pipeline and revenue. ([cloudtask.info](https://cloudtask.info/))