Category
Sales engagement software: what they are and who makes them
Outreach, Salesloft, Apollo and 6 more, sorted into types, with the company behind each and where it is based.
Types of sales engagement software
Enterprise revenue suites
Outreach and Salesloft sell sequencing together with conversation intelligence, deal tracking and forecasting. Buyers pay per seat, and Outreach adds metered AI credits. Both start with a sales call, so these suit teams of dozens of reps with a RevOps owner and a CRM already in place.
All-in-one prospecting platforms
Apollo combines a contact database, sequences, a dialer and a free tier in one login. Credits meter data lookups, so cost follows how much you export, not only how many seats you add. It suits founders and small teams that have not yet bought separate data.
Cold email at volume
Instantly, Woodpecker and lemlist price around emails sent and connected mailboxes. Instantly and Woodpecker allow unlimited mailboxes and warm-up, while lemlist adds LinkedIn, SMS and calling on a higher plan. Agencies and lean outbound teams tend to choose them, since cost follows volume rather than headcount and a new client rarely needs a new seat.
LinkedIn-first automation
Waalaxy, La Growth Machine and Overloop start from LinkedIn invitations and add email steps around them. Waalaxy and La Growth Machine charge per user or per sender identity, and Overloop charges per user with monthly credits. Fit is strongest for founders and freelancers selling to profiles they find on LinkedIn.
Facts at a glance
| Tool | Publisher | Based in | Access |
|---|---|---|---|
| Outreach | Outreach Corporation | United States | Paid + API |
| Salesloft | Salesloft, Inc. | United States | Paid + API |
| Apollo | ZenLeads, Inc. | United States | Free tier + API |
| lemlist | Lempire | France | Trial + API |
| Instantly | Foo Monk, LLC | United States | Paid + API |
| Woodpecker | Woodpecker AI sp. z o.o. | Poland | Trial + API |
| Waalaxy | SAS Waapi | France | Trial + API |
| La Growth Machine | B3 SAS | France | Trial + API |
| Overloop | Overloop | Belgium | Trial + API |
