Alternatives to VoiceOS
The top Voice Agent companies similar to VoiceOS, 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.
Open source alternatives to VoiceOS (60) →
Compare VoiceOS vs alternatives on features, pricing and reviews →
- Website
Kalpa Labs85Voice AgentSan Francisco, United States$2.0M - Website
Synthflow AI62Voice AgentSan Francisco, United States$20.0M - Website
Salient58Voice AgentSan Francisco, United States$78.4M - Website
David AI56Voice Agent$77.1M - Website
Nurix AI54Voice AgentSan Francisco, USA$33.5M - Website SLSlingshot AI51Voice AgentSan Francisco, United States$96.3M
- Website COCognigy50Voice AgentDüsseldorf, Germany$156.5M
- Website
Air46Voice AgentSan Francisco, United States$108.0M - Website
Trillet AI45Voice AgentTel Aviv, Israel$50.0M - Website
Cognigy (NICE)63Voice AgentDüsseldorf, Germany - Website
Marr Labs47Voice AgentSan Francisco, United States - Website
ElevenLabs79AILondon, United Kingdom$1.6B - Website
Uplift AI37Voice AgentKarachi, Pakistan - Website
Verbit70Contextual Speech RecognitionNew York, United States$584.0M - Website
Intercom70Customer ServiceSan Francisco, United States$456.0M - Website
Krisp69AI & ModelsBerkeley, United States$19.0M - Website
Vapi65Voice AISan Francisco, United States$74.3M - Website
Deepgram65NeocloudSan Francisco, United States$177.1M - Website
Forethought65Artificial IntelligenceSan Francisco, United States$25.0M - Website
Bland64Voice AISan Francisco, United States$51.0M - Website
Sierra64Agentic AIUnited States$1.6B - Website
Leaping AI64Voice AISan Francisco, United States$254.8M - Website
VoiceGenie28Voice AgentTel Aviv, Israel - Website
Five962Artificial IntelligenceSan Ramon, USA$71.6M - Website
Retell AI62Agentic AISan Francisco, United States$14.0M - Website
Skit62Conversational AINew York, United States$53.9M - Website
Solidroad61Agentic AISan Francisco, United States$39.2M - Website
Replicant61EnterpriseSan Francisco, United States$34.0M - Website INInfinitus61HealthcareSan Francisco, United States$106.9M
- Website
WellSaid Labs60Voice AISeattle, United States$82.2M - Website
Popai Health24Voice Agent - Website
Aisera58Agentic AIUnited States$90.0M - Website
SUPERDIAL57HealthcareSan Francisco, United States$22.5M - Website
DigitalGenius57AI Tools & AppsLondon, United Kingdom$21.9M - Website
Voxia56EnterpriseSan Francisco, United States$6.0M - Website
Inflection AI55Artificial IntelligencePalo Alto, United States$1.5B - Website
Teneo.ai55AIStockholm, Sweden$14.5M - Website
Fish Audio55Artificial IntelligencePalo Alto, United States$52.0M - Website
Wavel.ai54Voice AISan Francisco, United States$510K - Website
Aiola54Voice AIHerzliya, Israel$25.0M - Website
Assort Health53HealthTechSan Francisco, United States$153.5M - Website
MeetGeek53AIBucharest, Romania$1.9M - Website
Ultravox.ai52Agentic AISan Francisco, United States$10.0M - Website
Yobi52Artificial IntelligenceSan Francisco, USA$1.6M - Website
Hamming AI52Voice AISan Francisco, United States$4.5M - Website SOSonde Health52HealthTechBoston, United States$35.3M
- Website
Vogent51Artificial IntelligenceSan Francisco, United States$1.5M - Website
Voize51Voice AITel Aviv, Israel$54.0M - Website
GuruSup51Agentic AIValencia, Spain$1.3M - Website EQEqual AI50Artificial IntelligenceBengaluru, India$31.0M
- Website
SoundHound AI50Agentic AISanta Clara, United States$587.7M - Website
Cresta50Agentic AIUnited States$125.0M - Website
Truffle AI (YC W25)50Agentic AISan Francisco, United States$500.0M - Website
Avoca49AISan Francisco, United States$12.0M - Website
Atlog49Sales & Payment AI AgentsNew York, United States$1.0M - Website
Coqui48Voice AIBerlin, Germany$2.0M - Website
Champ AI48AI AgentSan Francisco, United States$8.5M - Website
Voxtral TTS13Voice Agent - Website
Certus AI47Voice AI$1.5M - Website
Chaty.ai45AI AgentsGold Coast, Australia$1.0M
| Company | Sector | HQ | Funding | Score | Website |
|---|---|---|---|---|---|
| Kalpa Labs | Voice Agent | San Francisco, United States | $2.0M | 85 | Website |
| Synthflow AI | Voice Agent | San Francisco, United States | $20.0M | 62 | Website |
| Salient | Voice Agent | San Francisco, United States | $78.4M | 58 | Website |
| David AI | Voice Agent | — | $77.1M | 56 | Website |
| Nurix AI | Voice Agent | San Francisco, USA | $33.5M | 54 | Website |
| SLSlingshot AI | Voice Agent | San Francisco, United States | $96.3M | 51 | Website |
| COCognigy | Voice Agent | Düsseldorf, Germany | $156.5M | 50 | Website |
| Air | Voice Agent | San Francisco, United States | $108.0M | 46 | Website |
| Trillet AI | Voice Agent | Tel Aviv, Israel | $50.0M | 45 | Website |
| Cognigy (NICE) | Voice Agent | Düsseldorf, Germany | — | 63 | Website |
| Marr Labs | Voice Agent | San Francisco, United States | — | 47 | Website |
| ElevenLabs | AI | London, United Kingdom | $1.6B | 79 | Website |
| Uplift AI | Voice Agent | Karachi, Pakistan | — | 37 | Website |
| Verbit | Contextual Speech Recognition | New York, United States | $584.0M | 70 | Website |
| Intercom | Customer Service | San Francisco, United States | $456.0M | 70 | Website |
| Krisp | AI & Models | Berkeley, United States | $19.0M | 69 | Website |
| Vapi | Voice AI | San Francisco, United States | $74.3M | 65 | Website |
| Deepgram | Neocloud | San Francisco, United States | $177.1M | 65 | Website |
| Forethought | Artificial Intelligence | San Francisco, United States | $25.0M | 65 | Website |
| Bland | Voice AI | San Francisco, United States | $51.0M | 64 | Website |
| Sierra | Agentic AI | United States | $1.6B | 64 | Website |
| Leaping AI | Voice AI | San Francisco, United States | $254.8M | 64 | Website |
| VoiceGenie | Voice Agent | Tel Aviv, Israel | — | 28 | Website |
| Five9 | Artificial Intelligence | San Ramon, USA | $71.6M | 62 | Website |
| Retell AI | Agentic AI | San Francisco, United States | $14.0M | 62 | Website |
| Skit | Conversational AI | New York, United States | $53.9M | 62 | Website |
| Solidroad | Agentic AI | San Francisco, United States | $39.2M | 61 | Website |
| Replicant | Enterprise | San Francisco, United States | $34.0M | 61 | Website |
| INInfinitus | Healthcare | San Francisco, United States | $106.9M | 61 | Website |
| WellSaid Labs | Voice AI | Seattle, United States | $82.2M | 60 | Website |
| Popai Health | Voice Agent | — | — | 24 | Website |
| Aisera | Agentic AI | United States | $90.0M | 58 | Website |
| SUPERDIAL | Healthcare | San Francisco, United States | $22.5M | 57 | Website |
| DigitalGenius | AI Tools & Apps | London, United Kingdom | $21.9M | 57 | Website |
| Voxia | Enterprise | San Francisco, United States | $6.0M | 56 | Website |
| Inflection AI | Artificial Intelligence | Palo Alto, United States | $1.5B | 55 | Website |
| Teneo.ai | AI | Stockholm, Sweden | $14.5M | 55 | Website |
| Fish Audio | Artificial Intelligence | Palo Alto, United States | $52.0M | 55 | Website |
| Wavel.ai | Voice AI | San Francisco, United States | $510K | 54 | Website |
| Aiola | Voice AI | Herzliya, Israel | $25.0M | 54 | Website |
| Assort Health | HealthTech | San Francisco, United States | $153.5M | 53 | Website |
| MeetGeek | AI | Bucharest, Romania | $1.9M | 53 | Website |
| Ultravox.ai | Agentic AI | San Francisco, United States | $10.0M | 52 | Website |
| Yobi | Artificial Intelligence | San Francisco, USA | $1.6M | 52 | Website |
| Hamming AI | Voice AI | San Francisco, United States | $4.5M | 52 | Website |
| SOSonde Health | HealthTech | Boston, United States | $35.3M | 52 | Website |
| Vogent | Artificial Intelligence | San Francisco, United States | $1.5M | 51 | Website |
| Voize | Voice AI | Tel Aviv, Israel | $54.0M | 51 | Website |
| GuruSup | Agentic AI | Valencia, Spain | $1.3M | 51 | Website |
| EQEqual AI | Artificial Intelligence | Bengaluru, India | $31.0M | 50 | Website |
| SoundHound AI | Agentic AI | Santa Clara, United States | $587.7M | 50 | Website |
| Cresta | Agentic AI | United States | $125.0M | 50 | Website |
| Truffle AI (YC W25) | Agentic AI | San Francisco, United States | $500.0M | 50 | Website |
| Avoca | AI | San Francisco, United States | $12.0M | 49 | Website |
| Atlog | Sales & Payment AI Agents | New York, United States | $1.0M | 49 | Website |
| Coqui | Voice AI | Berlin, Germany | $2.0M | 48 | Website |
| Champ AI | AI Agent | San Francisco, United States | $8.5M | 48 | Website |
| Voxtral TTS | Voice Agent | — | — | 13 | Website |
| Certus AI | Voice AI | — | $1.5M | 47 | Website |
| Chaty.ai | AI Agents | Gold Coast, Australia | $1.0M | 45 | Website |