Alternatives to Lettermail
The top Email Productivity companies similar to Lettermail, ranked by relevance (named competitors first, then how closely their sectors overlap) and our 0-100 AI-readiness score. Each links to a full profile with funding and team.
monday.com76Work OSTel Aviv, Israel$234.1M
Lindy AI37Agentic AINew York, United States$4.7M- RockpilotAI Agent
- Foundry SolutionsWorkflow Automation
QikflowSMB Software
Atera69EnterpriseTel Aviv, Israel$102.0M
ZIGI AI46Enterprise$1.5M
theGist45Generative AITel Aviv, Israel$7.0M
Supernaut AI44AI Automation$4.1M
libonea.ai35Consulting- Xolum34Conversational AITel Aviv, Israel$1.5M
Tasker AI33Agentic AI- Sora Grp33Agentic AICheltenham, United Kingdom
TargetBoard.ai33Enterprise
Usequantumbloom17AI Agent
Ascentum16Agentic AI
Timing15Productivity
Administrativo7Agentic AISan Francisco, United States
IndurAI-Native Workspace- AnugaVoice AILondon, United Kingdom
- EvictthemLegalTech
- WorkautomatikWorkflow Automation
- StratadeskAgentic AITel Aviv, Israel$1.0M
SortwellEmail Management- EmployershandbookHR TechLondon, United Kingdom
- GodcrmCRM Software
CultivateaiSales Automation
OtariaAI Agent
PergySales AutomationTel Aviv, Israel
TrumacrosMarketing Automation- FinrsEnterprise Software
- EntzettelungWorkflow Automation
- HorizonworkspaceAgentic AITel Aviv, Israel
- AgentatomAI AgentTel Aviv, Israel
- UptodayAgentic AI
ActiveCampaign75Agentic AIChicago, United States$50.0M
Manus AI75Agentic AISingapore, Singapore$150.0M
NemoClaw75Artificial Intelligence
Navan, Inc.74Corporate Travel ManagementPalo Alto, United States$1.6B
EVE-E71LegalTechSan Francisco, United States$47.0M
Adept AI71Agentic AISan Francisco, United States$415.0M
Airtable71Low CodeSan Francisco, United States$1.4B
Hightouch70Customer Data PlatformSan Francisco, United States$322.0M
PagerDuty68Incident ManagementSan Francisco, United States$523.9M
Blitzy66Agentic AICambridge, United States$204.4M
Pylon66Agentic AITel Aviv, Israel$31.0M
Decagon65AI AgentSan Francisco, United States$491.0M
Augmented Intelligence (AUI)64Assistant$54.5M
Basis63AI AgentNew York, United States$137.6M
Sweep63SalesforceSan Francisco, United States$50.5M
Flare63LegalTechEncinitas, United States$52.3M
Avo63HRTel Aviv, Israel$45.0M
Didero62Agentic AINew York, United States$30.0M- CRCreatio62Artificial IntelligenceBoston, United States$200.0M
Motion62ProductivitySan Francisco, United States$76.0M
Viktor62Artificial IntelligenceWarsaw, Poland$64.7M- HIHighlight AI61Agentic AISan Francisco, United States$40.0M
Harvey.61Legal & ComplianceNew York, United States
StackAI60Agentic AISan Francisco, United States
Datarails60FintechTel Aviv, Israel$175.0M
| Company | Sector | HQ | Funding | Score |
|---|---|---|---|---|
| monday.com | Work OS | Tel Aviv, Israel | $234.1M | 76 |
| Lindy AI | Agentic AI | New York, United States | $4.7M | 37 |
| AI Agent | — | — | — | |
| Workflow Automation | — | — | — | |
| Qikflow | SMB Software | — | — | — |
| Atera | Enterprise | Tel Aviv, Israel | $102.0M | 69 |
| ZIGI AI | Enterprise | — | $1.5M | 46 |
| theGist | Generative AI | Tel Aviv, Israel | $7.0M | 45 |
| Supernaut AI | AI Automation | — | $4.1M | 44 |
| libonea.ai | Consulting | — | — | 35 |
| Conversational AI | Tel Aviv, Israel | $1.5M | 34 | |
| Tasker AI | Agentic AI | — | — | 33 |
| Agentic AI | Cheltenham, United Kingdom | — | 33 | |
| TargetBoard.ai | Enterprise | — | — | 33 |
| Usequantumbloom | AI Agent | — | — | 17 |
| Ascentum | Agentic AI | — | — | 16 |
| Timing | Productivity | — | — | 15 |
| Administrativo | Agentic AI | San Francisco, United States | — | 7 |
| Indur | AI-Native Workspace | — | — | — |
| Voice AI | London, United Kingdom | — | — | |
| LegalTech | — | — | — | |
| Workflow Automation | — | — | — | |
| Agentic AI | Tel Aviv, Israel | $1.0M | — | |
| Sortwell | Email Management | — | — | — |
| HR Tech | London, United Kingdom | — | — | |
| CRM Software | — | — | — | |
| Cultivateai | Sales Automation | — | — | — |
| Otaria | AI Agent | — | — | — |
| Pergy | Sales Automation | Tel Aviv, Israel | — | — |
| Trumacros | Marketing Automation | — | — | — |
| Enterprise Software | — | — | — | |
| Workflow Automation | — | — | — | |
| Agentic AI | Tel Aviv, Israel | — | — | |
| AI Agent | Tel Aviv, Israel | — | — | |
| Agentic AI | — | — | — | |
| ActiveCampaign | Agentic AI | Chicago, United States | $50.0M | 75 |
| Manus AI | Agentic AI | Singapore, Singapore | $150.0M | 75 |
| NemoClaw | Artificial Intelligence | — | — | 75 |
| Navan, Inc. | Corporate Travel Management | Palo Alto, United States | $1.6B | 74 |
| EVE-E | LegalTech | San Francisco, United States | $47.0M | 71 |
| Adept AI | Agentic AI | San Francisco, United States | $415.0M | 71 |
| Airtable | Low Code | San Francisco, United States | $1.4B | 71 |
| Hightouch | Customer Data Platform | San Francisco, United States | $322.0M | 70 |
| PagerDuty | Incident Management | San Francisco, United States | $523.9M | 68 |
| Blitzy | Agentic AI | Cambridge, United States | $204.4M | 66 |
| Pylon | Agentic AI | Tel Aviv, Israel | $31.0M | 66 |
| Decagon | AI Agent | San Francisco, United States | $491.0M | 65 |
| Augmented Intelligence (AUI) | Assistant | — | $54.5M | 64 |
| Basis | AI Agent | New York, United States | $137.6M | 63 |
| Sweep | Salesforce | San Francisco, United States | $50.5M | 63 |
| Flare | LegalTech | Encinitas, United States | $52.3M | 63 |
| Avo | HR | Tel Aviv, Israel | $45.0M | 63 |
| Didero | Agentic AI | New York, United States | $30.0M | 62 |
| CRCreatio | Artificial Intelligence | Boston, United States | $200.0M | 62 |
| Motion | Productivity | San Francisco, United States | $76.0M | 62 |
| Viktor | Artificial Intelligence | Warsaw, Poland | $64.7M | 62 |
| HIHighlight AI | Agentic AI | San Francisco, United States | $40.0M | 61 |
| Harvey. | Legal & Compliance | New York, United States | — | 61 |
| StackAI | Agentic AI | San Francisco, United States | — | 60 |
| Datarails | Fintech | Tel Aviv, Israel | $175.0M | 60 |