Alternatives to Google Assistant SDK
The top Voice AI companies similar to Google Assistant SDK, 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.
Voiceflow62Conversational AIToronto, Canada$43.5M
AssemblyAI56Voice AISan Francisco, United States$112.0M
Jack & Jill51Agentic AILondon, United Kingdom$71.5M
Vocode50Open SourceSan Francisco, United States$3.8M
Rasa49Conversational AIBerlin, Germany$13.0M
Symbl.ai36Voice AISan Francisco, United States$6.4M
Twang35VoiceSan Francisco, United States
Eself25Generative AINew York, United States
Onvego19SpeechTel Aviv, Israel- Ttsgenerators14Voice AITel Aviv, Israel
Amazon Alexa Voice Service (AVS)Voice AISeattle, United States- KcrdVoice AI
- FunbuttonVoice AI
- PlayspanglobalVoice AI
Kalpa Labs85Voice AgentSan Francisco, United States$2.0M
Yellow.ai73Conversational AIBengaluru, India
Intercom (Fin by Intercom)71Voice AgentSan Francisco, United States$911.0M
Verbit70Contextual Speech RecognitionNew York, United States$584.0M
Riverside.fm70Voice AINew York, United States$77.0M
Dialpad67Voice AISan Ramon, United States
Whisp Flow66Artificial IntelligenceSan Francisco, United States
Deepgram65NeocloudSan Francisco, United States$177.1M
Vapi65Voice AISan Francisco, United States$74.3M
11x64Agentic AISan Francisco, United States
Bland64Voice AISan Francisco, United States$51.0M
Cartesia64Voice AISan Francisco, United States$191.0M
Genesys Cloud CX64Contact Center AIDaly City, United States$3.9B
Cognigy (NICE)63Voice AgentDüsseldorf, Germany
Suki63HealthTechRedwood City, United States
Eleos Health63HealthcareNew York, United States$126.0M
Ambiance63HealthcareSan Francisco, United States$313.0M
Sanas63SpeechPalo Alto, United States$159.3M
Hyro63Conversational AINew York, United States$79.5M
Syllable63Agentic AISan Francisco, United States$94.3M
hellopatient62HealthcareTel Aviv, Israel$57.6M
Strada62InsuranceSan Francisco, United States$4.5M
Colossyan62Voice AILondon, United Kingdom
Rep AI62E-commerceTel Aviv, Israel$9.7M
Rasa Technologies GmbH62Conversational AISan Francisco, United States$73.4M
OpenPhone62Voice AISan Francisco, United States$45.0M- INInfinitus61HealthcareSan Francisco, United States$106.9M
Sendbird61Conversational AISan Mateo, United States
Solidroad61Agentic AISan Francisco, United States$39.2M
WellSaid Labs60Voice AISeattle, United States$82.2M
Boost AI59Conversational AIAarhus, Denmark$8.0M
Kore.ai59Agentic AIOrlando, United States$150.0M
Harbinger58Conversational AISan Francisco, United States$393.0M
Cluely58Agentic AISan Francisco, United States
SUPERDIAL57HealthcareSan Francisco, United States$22.5M
Voxia56EnterpriseSan Francisco, United States$6.0M
UG labs56Conversational AITel Aviv, Israel$7.0M
Meaning55Artificial IntelligenceTel Aviv, Israel
IFTTT55Workflow AutomationSan Francisco, United States$62.5M
Enchant Labs55Conversational AISan Francisco, United States
PLAUD.AI55Voice AISan Francisco, United States$9.8M
Resemble AI55Voice AINew York, United States$36.5M
AudioBurst55New MediaTel Aviv, Israel$24.3M
Perspective AI55EnterpriseSan Francisco, United States
Lua Global55Agentic AISan Francisco, United States$5.8M- CICignara54Agentic AISan Francisco, United States
| Company | Sector | HQ | Funding | Score |
|---|---|---|---|---|
| Voiceflow | Conversational AI | Toronto, Canada | $43.5M | 62 |
| AssemblyAI | Voice AI | San Francisco, United States | $112.0M | 56 |
| Jack & Jill | Agentic AI | London, United Kingdom | $71.5M | 51 |
| Vocode | Open Source | San Francisco, United States | $3.8M | 50 |
| Rasa | Conversational AI | Berlin, Germany | $13.0M | 49 |
| Symbl.ai | Voice AI | San Francisco, United States | $6.4M | 36 |
| Twang | Voice | San Francisco, United States | — | 35 |
| Eself | Generative AI | New York, United States | — | 25 |
| Onvego | Speech | Tel Aviv, Israel | — | 19 |
| Voice AI | Tel Aviv, Israel | — | 14 | |
| Amazon Alexa Voice Service (AVS) | Voice AI | Seattle, United States | — | — |
| Voice AI | — | — | — | |
| Voice AI | — | — | — | |
| Voice AI | — | — | — | |
| Kalpa Labs | Voice Agent | San Francisco, United States | $2.0M | 85 |
| Yellow.ai | Conversational AI | Bengaluru, India | — | 73 |
| Intercom (Fin by Intercom) | Voice Agent | San Francisco, United States | $911.0M | 71 |
| Verbit | Contextual Speech Recognition | New York, United States | $584.0M | 70 |
| Riverside.fm | Voice AI | New York, United States | $77.0M | 70 |
| Dialpad | Voice AI | San Ramon, United States | — | 67 |
| Whisp Flow | Artificial Intelligence | San Francisco, United States | — | 66 |
| Deepgram | Neocloud | San Francisco, United States | $177.1M | 65 |
| Vapi | Voice AI | San Francisco, United States | $74.3M | 65 |
| 11x | Agentic AI | San Francisco, United States | — | 64 |
| Bland | Voice AI | San Francisco, United States | $51.0M | 64 |
| Cartesia | Voice AI | San Francisco, United States | $191.0M | 64 |
| Genesys Cloud CX | Contact Center AI | Daly City, United States | $3.9B | 64 |
| Cognigy (NICE) | Voice Agent | Düsseldorf, Germany | — | 63 |
| Suki | HealthTech | Redwood City, United States | — | 63 |
| Eleos Health | Healthcare | New York, United States | $126.0M | 63 |
| Ambiance | Healthcare | San Francisco, United States | $313.0M | 63 |
| Sanas | Speech | Palo Alto, United States | $159.3M | 63 |
| Hyro | Conversational AI | New York, United States | $79.5M | 63 |
| Syllable | Agentic AI | San Francisco, United States | $94.3M | 63 |
| hellopatient | Healthcare | Tel Aviv, Israel | $57.6M | 62 |
| Strada | Insurance | San Francisco, United States | $4.5M | 62 |
| Colossyan | Voice AI | London, United Kingdom | — | 62 |
| Rep AI | E-commerce | Tel Aviv, Israel | $9.7M | 62 |
| Rasa Technologies GmbH | Conversational AI | San Francisco, United States | $73.4M | 62 |
| OpenPhone | Voice AI | San Francisco, United States | $45.0M | 62 |
| INInfinitus | Healthcare | San Francisco, United States | $106.9M | 61 |
| Sendbird | Conversational AI | San Mateo, United States | — | 61 |
| Solidroad | Agentic AI | San Francisco, United States | $39.2M | 61 |
| WellSaid Labs | Voice AI | Seattle, United States | $82.2M | 60 |
| Boost AI | Conversational AI | Aarhus, Denmark | $8.0M | 59 |
| Kore.ai | Agentic AI | Orlando, United States | $150.0M | 59 |
| Harbinger | Conversational AI | San Francisco, United States | $393.0M | 58 |
| Cluely | Agentic AI | San Francisco, United States | — | 58 |
| SUPERDIAL | Healthcare | San Francisco, United States | $22.5M | 57 |
| Voxia | Enterprise | San Francisco, United States | $6.0M | 56 |
| UG labs | Conversational AI | Tel Aviv, Israel | $7.0M | 56 |
| Meaning | Artificial Intelligence | Tel Aviv, Israel | — | 55 |
| IFTTT | Workflow Automation | San Francisco, United States | $62.5M | 55 |
| Enchant Labs | Conversational AI | San Francisco, United States | — | 55 |
| PLAUD.AI | Voice AI | San Francisco, United States | $9.8M | 55 |
| Resemble AI | Voice AI | New York, United States | $36.5M | 55 |
| AudioBurst | New Media | Tel Aviv, Israel | $24.3M | 55 |
| Perspective AI | Enterprise | San Francisco, United States | — | 55 |
| Lua Global | Agentic AI | San Francisco, United States | $5.8M | 55 |
| CICignara | Agentic AI | San Francisco, United States | — | 54 |