Ontraport

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A platform that combines CRM with marketing automation and e-commerce, targeting small businesses (particularly those selling online courses, memberships, or digital products). Ontraport offers campaign builders, landing pages, payment processing, and a CRM database. Essentially, it’s aimed at entrepreneurs who need to manage contacts and automate marketing but also process orders – a bit like a hybrid of Infusionsoft and Shopify. It’s more niche, but those who use it appreciate having contacts, marketing, and online transaction capability in one place (no need for separate CRM + email + shopping cart). (Mentioned for automating online transactions in Zapier’s list.)

Membrain

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A sales enablement CRM focused on B2B sales process execution. Membrain isn’t as known as others, but it’s included as an example of specialized sales tools – it helps design and enforce sales playbooks (step-by-step activities), especially for longer consultative sales. It offers skills coaching, content recommendations, and analytics to improve sales effectiveness. Midsize companies that want to improve sales team consistency use Membrain on top of or instead of a traditional CRM. (Zapier mentions it for designing sales processes.)

HubSpot CRM

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A free (core CRM) platform that’s part of HubSpot’s suite, very popular with small businesses for its simplicity and power. HubSpot CRM manages contacts, companies, deals, and tasks in a friendly interface – with unlimited users for free. It integrates seamlessly with HubSpot’s Marketing and Service Hubs. Features like email tracking, meeting scheduling, and a built-in dialer give sales reps productivity boosts. It’s especially great for teams new to CRM, as it requires minimal setup and offers a lot of value out-of-the-box (and you can upgrade for advanced features as needed).

Salesforce Sales Cloud

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The market-leading Customer Relationship Management (CRM) platform, used by sales teams worldwide. Salesforce provides a highly extensible system to manage leads, accounts, contacts, and deals with robust tracking and reporting. Its strength lies in customization and a vast app ecosystem – you can tailor workflows, automations, and integrations for almost any sales process. While traditionally used by larger companies, Salesforce offers small business editions, and many SMBs adopt it as they need a scalable CRM that can grow with them. It’s known for pipeline visibility and analytics that help drive sales efficiency.