B2B Sales & Marketing Service Providers and Tools

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.

Groove

Fractional Leaders & Talent

Groove (now Groove by Clari) is a Salesforce-native sales engagement platform that automates multi-channel outreach, captures every seller activity, and connects directly into Clari’s revenue platform to improve productivity and pipeline execution for B2B teams.

Growth Molecules

RevOps Consulting

Growth Molecules is an advisory and technology services firm that helps B2B technology companies protect and grow recurring revenue through customer success strategy, training, and customer success platform implementation.

GrowthMentor

GrowthMentor is a subscription-based mentorship platform that connects founders, marketers, product managers and growth practitioners with vetted startup and growth mentors for 1:1 video calls.

Help Scout

Help Scout is a customer support platform that combines a shared inbox, knowledge base, in‑app messaging, and AI to help growing teams deliver personal, scalable support.

Hit Rate Solutions

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.

Hiver

Hiver is an AI-powered customer service platform that runs inside Gmail and Outlook, turning shared inboxes into a full omnichannel help desk for email, chat, voice, and WhatsApp. ([hiverhq.com](https://hiverhq.com/products/customer-service?utm_source=openai))

HockeyStack

Attribution & BI

HockeyStack is an AI-powered revenue analytics and attribution platform that unifies marketing, sales, and product data to show what truly drives pipeline and revenue. It helps B2B teams visualize buyer journeys, run multi-touch attribution, and power account intelligence in one place.

Homex Virtual Agency

Video & Webinar Platforms

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.

Hopin

Hopin, now part of RingCentral Events, provides an all‑in‑one platform for running virtual, hybrid, and onsite events that feel like in‑person experiences.

Hotjar

CRO & Testing

Hotjar is a product experience insights platform that combines behavior analytics and user feedback tools—like heatmaps, session replay, funnels, surveys, and user interviews—to help teams optimize websites and web apps. ([help.hotjar.com](https://help.hotjar.com/hc/en-us/articles/36820019634961-What-is-Hotjar?utm_source=openai))

HubSpot CRM

CRM

HubSpot CRM is an AI-powered, cloud-based customer platform that unifies marketing, sales, service, content, data, and commerce so teams can manage the entire customer lifecycle in one place.

HubSpot Marketing Hub

Marketing Automation

HubSpot is a public SaaS company that provides an AI-powered CRM platform with marketing, sales, service, content, data and commerce hubs, centered around its Smart CRM. ([en.wikipedia.org](https://en.wikipedia.org/wiki/HubSpot?utm_source=openai))

HubSpot Sales Hub

Content Creation & AI Writing

HubSpot is a public CRM platform that unifies marketing, sales, service, content, and data on one cloud-based system. Sales Hub is its sales engagement and pipeline management product built on the HubSpot Smart CRM. ([en.wikipedia.org](https://en.wikipedia.org/wiki/HubSpot?utm_source=openai))

Hunter.io

Email & Phone Validation

Hunter.io is an all-in-one cold email and email verification platform that helps you identify relevant prospects, find their professional email addresses, verify them, and run simple outbound campaigns.

Hypotenuse AI

Hypotenuse AI is an AI platform that helps ecommerce brands manage product data, generate on-brand content, and optimize images and SEO at scale.

Imprint Engine

Gifting & Direct Mail

Imprint Engine is a global, platform-driven brand experience partner that combines in-house merch production, global fulfillment, and its IEX software to power corporate gifting, swag, and branded offline experiences for modern companies. ([imprintengine.com](https://imprintengine.com/))

Influence & Co

Creative & Content Agencies

Influence & Co is a Columbia, Missouri–based content marketing agency (now Intero Digital’s Content & PR division) that helps B2B companies use strategic content, PR and SEO to drive measurable business results. ([martechcube.com](https://www.martechcube.com/content-marketing-agency-influence-co-adopts-intero-digital-brand/?utm_source=openai))

Inside Sales Solutions

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

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.

Insightly

CRM

Insightly is a modern, affordable CRM platform that unifies sales, marketing, service, and integrations to help growing businesses manage the entire customer lifecycle in one place.

InsightSquared

RevOps & Sales Analytics

InsightSquared is a revenue intelligence and RevOps analytics platform that delivers AI-powered forecasting, pipeline analytics, and full-funnel dashboards for B2B sales, marketing, and customer success teams.

Instantly

Instantly is an AI-powered sales engagement and cold email platform that combines unlimited email sending accounts, automated warmup, a built-in B2B lead database, and a lightweight CRM to help B2B teams and agencies scale outbound outreach.

Intelus Agency

Intelus Agency is a U.S.-managed remote staffing and LinkedIn marketing agency that connects businesses with pre-vetted Filipino virtual assistants and delivers done-for-you LinkedIn lead generation, content, and ads.

Intentsify

Intentsify is a B2B intent data and activation platform that uses AI-generated buyer intelligence and managed programs to help revenue teams turn buying signals into pipeline.

Intercom

Creative & Content Agencies

Intercom is an AI-first customer service platform that combines an AI agent, modern helpdesk, and proactive messaging so businesses can support and engage customers at scale.

Inturact

Inturact is a specialized account-based marketing and SaaS growth agency that helps post–product-market-fit B2B software companies turn early traction into systematic, scalable revenue.

Ironpaper

Content Creation & AI Writing

Ironpaper is a New York–based B2B growth agency specializing in lead generation, demand generation, ABM, and sales enablement for companies with complex, long sales cycles.

Jasper

Jasper is an AI content automation platform purpose-built for marketing teams, helping them plan, create and scale on-brand content across every channel.

Jellyfish

Media Buying Agencies

Jellyfish is an integrated global digital marketing business that unites media, creative, data and proprietary AI technology to help brands accelerate growth across channels. ([jellyfish.com](https://www.jellyfish.com/en-us?utm_source=openai))

Jiminny

RevOps & Sales Analytics

Jiminny is an AI-powered conversation and revenue intelligence platform that records, transcribes and analyzes sales interactions so B2B revenue teams can coach more effectively, forecast accurately and win more deals. ([jiminny.com](https://jiminny.com/))

JumpCrew

JumpCrew is an outsourced B2B sales and marketing partner that builds and runs dedicated, white-labeled sales teams to generate leads, build pipeline, and close revenue for growing brands.([jumpcrew.com](https://jumpcrew.com/?utm_source=openai))

JustCall

Dialers & VOIP

JustCall is an AI-powered cloud phone and messaging platform for sales, support, and customer success teams, combining voice, SMS, WhatsApp, and automations in one tool.

Kaspr

Kaspr is a LinkedIn-focused sales intelligence tool and Chrome extension that gives B2B sales and recruiting teams instant access to verified phone numbers and emails for prospects. ([help.kaspr.io](https://help.kaspr.io/en/articles/8862992-what-is-kaspr?utm_source=openai))

Keap

CRM

Keap (formerly Infusionsoft) is an automation-first CRM that combines contact management, marketing automation, sales pipelines, appointments, and payments in a single platform built for small businesses.

Kickbox

Email & Phone Validation

Kickbox is an email verification platform that helps marketers and developers clean email lists and verify addresses in real time to reduce bounces and protect sender reputation.

KickFire

KickFire is a B2B first-party intent data and IP address intelligence platform that deanonymizes website visitors and enriches sales and marketing systems with account-level insights.citeturn0search9turn22search7turn1search11

Kixie

Dialers & VOIP

Kixie is an AI-powered sales engagement and VoIP platform that combines multi-line power dialing, business SMS, and deep CRM integrations to help revenue teams connect with more prospects and customers.

Klaviyo

Marketing Automation

Klaviyo is an AI-first B2C CRM and marketing automation platform that unifies email, SMS, WhatsApp, mobile, reviews, and analytics to help consumer brands build data-driven customer relationships at scale.

Klenty

Demand Gen & Performance Agencies

Klenty is an AI-powered sales engagement platform that helps B2B sales teams run multi-channel outreach, automate workflows, and book more meetings from the same pipeline.

KlientBoost

KlientBoost is a performance marketing agency that helps SaaS, ecommerce, and lead generation brands grow revenue through data-driven PPC, CRO, SEO, email, and creative services.

Koncert

Dialers & VOIP

Koncert is an AI-powered B2B sales dialer and multi-channel sales engagement platform that helps outbound teams dramatically increase live conversations, connect rates, and pipeline.

Kustomer

Kustomer is an AI-powered customer service CRM that unifies omnichannel support, customer data and automation to help brands deliver fast, personalized experiences at scale.

Launch Leads

Launch Leads is a multi-channel B2B lead generation and appointment-setting agency that fills sales pipelines with qualified meetings with decision-makers. They act as an extension of your sales team, handling prospecting, qualification, and appointment scheduling so your reps can focus on closing.

Lead Express

Lead Express is an Australian B2B lead generation agency that delivers guaranteed, qualified sales opportunities through integrated digital, phone, and data-driven campaigns.

Lead Forensics

Lead Forensics is B2B website visitor identification software that reveals the companies behind anonymous web traffic and surfaces contact and intent data to fuel sales and marketing.

Lead411

Lead411 is a B2B sales intelligence and contact data platform that provides verified emails, direct dials, intent signals and CRM integrations to help revenue teams find and engage decision-makers.

LeadBird

LeadBird is a performance-based B2B lead generation agency that runs done-for-you cold email campaigns and charges per meeting-ready lead, so you only pay for results.

Leadfeeder

Leadfeeder (now part of Dealfront) is a B2B website visitor identification and intent data platform that reveals which companies visit your site and feeds them into your CRM for sales and marketing follow-up.

LeadGenius

LeadGenius is a B2B contact data and sales intelligence platform that combines AI with human researchers to deliver custom, compliant prospect data for global revenue teams.

LeadIQ

LeadIQ is a B2B sales intelligence and prospecting platform that helps outbound teams find verified contact data, track job changes, enrich CRM records, and personalize outreach at scale.

Leadium

Leadium is a B2B lead generation and SDR outsourcing agency that runs multi-channel outbound, inbound qualification, and data research to deliver qualified sales appointments.

LeanData

RevOps & Sales Analytics

LeanData is an AI-powered revenue orchestration and lead routing platform built natively on Salesforce, helping B2B teams match, route, and act on every buyer signal across the customer lifecycle. ([leandata.com](https://www.leandata.com/platform/?utm_source=openai))

Lemlist

Lemlist is a multichannel sales engagement platform that helps B2B teams find leads, enrich contact data, and run highly personalized outreach across email, LinkedIn, calls, and WhatsApp from one place, with built‑in deliverability tools and AI personalization.([g2.com](https://www.g2.com/products/lemlist/reviews))

Lessonly

Enablement Platforms

Lessonly (now Seismic Learning) is a cloud-based training, coaching, and sales enablement platform that helps customer-facing teams ramp faster and improve performance through structured lessons, practice, and analytics.

Level Up Leads

LevelUp Leads is a bootstrapped B2B sales development agency that provides outsourced SDR, appointment setting, and multi-channel outbound campaigns for small to mid-sized companies. They act as an extension of your sales team to fill the pipeline with qualified meetings.

LinkedHelper

LinkedIn Automation

Linked Helper is a desktop LinkedIn automation and CRM tool that automates outreach, follow-ups and data collection while mimicking human behavior to reduce account risk.([linkedhelper.com](https://www.linkedhelper.com/))

LinkedIn Ads

Advertising Platforms

LinkedIn Ads (part of LinkedIn Marketing Solutions) is a B2B advertising platform that lets marketers reach a global audience of professionals using precise targeting, multiple ad formats, and integrated lead-generation tools.

LinkedIn Sales Navigator

LinkedIn Sales Navigator is LinkedIn’s B2B sales intelligence platform that helps sellers find, understand, and engage the right buyers using LinkedIn’s first‑party data and AI‑driven insights.

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