Solven

About Solven

Solven builds inbound and outbound voice agents for service businesses, covering call overflow and after-hours cover, lead qualification and appointment booking. It is one of the few voice specialists here that publishes named client outcomes: 94% of calls resolved without staff escalation at Anytime Fitness Australia, a 31% booking conversion rate at Colourworks and a 46% increase in sales calls at Sonnabend Capital. Those figures are the agency's own.

It states agents go live on real calls within the first week, and that every call is reviewed and fed back into the agent, which is an evaluation loop rather than a launch and forget deployment. Retell AI's partner directory lists it at Diamond tier since March 2026. No price, founding year or team size is published, and no Clutch, DesignRush, G2 or Google profile was located.

Our verdict

Solven suits a service business with a straightforward problem: calls are going unanswered and bookings are being lost. Named clients with outcomes attached are rarer in this category than they should be, and the habit of reviewing calls and feeding corrections back into the agent is what separates a deployment that improves over time from one that quietly degrades. What a technical buyer will not find is any account of how the call layer works. There is no latency figure, no telephony or SIP detail, no stated position on interruption handling and no infrastructure named beyond CRM connectors, and the agent layer rests entirely on one platform vendor. There is also no independent review record and no published price, so both the commercial terms and the service quality have to be established in conversation.

Where Solven ranks

• Ranked #9 in AI Voice Agencies