fonio.ai

What fonio.ai does

fonio.ai (legal entity fonio GmbH) is a Vienna-headquartered AI communication platform founded in 2024 by Daniel Keinrath and Matthias Gruber that builds autonomous voice agents to handle business phone interactions for primarily small and mid-sized businesses across Europe. The core product is an AI Phone Assistant that answers inbound and outbound calls, qualifies leads, schedules appointments, executes CRM and calendar actions, and transcribes or summarizes conversations, supported by add-ons including WhatsApp AI, fonio Scheduler, and a self-learning knowledge base. Technical differentiation rests on a proprietary in-house orchestration layer (versus white-labeling US services), GDPR/EU AI Act/LGPD/Italian AI Law-compliant infrastructure with servers in Nuremberg, Germany, support for seven languages with local phone numbers in six countries, and a public API with native integrations to HubSpot, Cal.com, eTermin, n8n, make, Airtable, Slack, Google Sheets, and Baserow.

The business combines a self-serve product-led growth motion (10-minute setup, no code) with a direct enterprise sales overlay and a 400+ partner ecosystem offering up to 35% recurring revenue share. Published tiers for the recruiter vertical start at €99/month (1,000 minutes, 1 number) and €299/month (3,000 minutes, 3 numbers), with custom multi-year contracts for accounts exceeding 100 calls per day. Customers span recruitment, hotels and hospitality, medical practices, tradespeople, property management, e-commerce, automotive dealerships, and public authorities. By mid-2026 the company reported 11,000+ customers and 2M+ automated calls per month, with >30% month-over-month growth, $1.5M of ARR added in the most recent month, and a stated target of $10M ARR by summer, backed by EUR 20M+ in funding across a December 2025 angel round and a June 2026 EUR 14.6M seed led by 20VC at a EUR 120M valuation.

The current operating model is expanding beyond voice into omnichannel (WhatsApp, email, chatbot), beyond DACH into the US, UK, France, Italy, Poland, Netherlands, and Brazil, and beyond a single-product offering into platform territory via the public API and proprietary CRM/calendar development funded by the 2026 seed round. The team stood at approximately 50 people with a stated plan to double by year-end, including dedicated GTM leadership in France/Switzerland and Italy and planned offices in New York, Munich, Milan, Paris, London, and Warsaw.

Name

fonio.ai

Legal name

fonio GmbH

Website

https://fonio.ai

Company type

Private

Founded year

2024

Operating status

Operating

Headcount range

51–100 employees

Short description

fonio.ai is a Vienna-based AI platform that provides autonomous voice and WhatsApp agents to handle inbound and outbound phone calls, appointment scheduling, and CRM-integrated customer communications for SMBs and mid-market companies across Europe, with EU-compliant data residency.

Ownership category

akta.pro rank

Product category

Conversational AI / AI Voice Agents

NAICS

Telemarketing Bureaus and Other Contact Centers (561422), Computer Systems Design Services (541512)

SIC

Communications Services, Nec (4899), Services-Computer Programming Services (7371)

akta.pro primary industry

Contact Center Speech AI (agent assist, IVR automation) (HDAAAFAL)

akta.pro secondary industries

AI Application Enablement Platforms (Copilot/Agent Frameworks, SDKs) (HDAEANAJ), AI & Automation in Customer Service (Chatbots, Agent Assist) (EDABACAO)

Keywords

• AI phone assistant
• Voice AI agents
• Conversational AI platform
• Automated call handling
• AI customer service

Headquarters

HQ city

Vienna

HQ country

Austria

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Software

Cost components

Personnel, Technology or R&D, Marketing or Sales, Infrastructure, Operations

Revenue model

1. Subscription - AI Phone Assistant: Monthly subscription plans with included call minutes. Customers pay recurring monthly fees for access to AI phone assistant functionality. Additional minutes charged at per-minute rates when free minutes are exhausted.
2. Usage-based Overage: Consumption-based pricing where customers pay per minute for calls beyond their plan's included minutes. This provides land-and-expand revenue growth as customer usage increases.
3. Partner Revenue Share: Channel partners (resellers and referral partners) earn recurring revenue share (up to 35%) for customers they bring. Partners can also resell with their own pricing and billing.

Pricing tiers

Go-to-market motion2 records

Distribution channels5 records

Marketing channels6 records

Core offering

fonio.ai provides AI-powered phone assistants that autonomously handle business inbound and outbound calls, including appointment scheduling, lead qualification, customer support, and CRM/calendar integrations. The platform is offered via a self-serve product with multilingual support, a WhatsApp AI add-on, and industry-specific configurations for recruiters, hotels, healthcare, field service, and property management.

Product overview

fonio.ai is an AI communication platform for SMBs consisting of a core AI phone assistant product plus modular add-ons and industry-specific solutions. The core fonio AI Phone Assistant provides autonomous voice agents that handle customer calls 24/7 with natural language understanding. The platform has expanded from voice-only to an omnichannel solution with the WhatsApp AI add-on. Additional modules include the fonio Scheduler for appointment booking and the Self-Learning Knowledge Base. Industry-specific solutions include AI Field Service Assistant, AI Support Staff, AI Secretary, AI Answering Machine, and specialized solutions for recruiters, hotels, property managers, tradespeople, car dealerships, authorities, and auto repair shops. The platform is positioned as the top AI phone agent platform for SMBs in Europe with GDPR compliance and EU AI Act compliance.

Differentiator

Problem solved

Functional benefit

Products and services

• fonio AI Phone Assistant Core SaaS offering providing AI voice agents that autonomously handle business phone interactions including inbound/outbound calls, scheduling, and CRM integrations. Enables 24/7 automated customer service with natural language understanding, supporting 7 languages.
• WhatsApp AI Add-on module that enables the AI assistant to handle WhatsApp text-based customer conversations, with human takeover capability for seamless handoff to live agents.
• fonio Scheduler Appointment scheduling module that integrates with Microsoft and Google Calendar via booking links, allowing customers to book appointments based on real-time availability with custom fields filled by AI.

Quantifiable outcome

• 80% of routine calls handled automatically (e.g., KI-Camper case)
• +4 more outcomes

Named customers6 records

Segments6 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

Yes

API docs

API detail

Core technology

AI maturity

App detail

Integration10 records

AI capability8 records

Feature7 records

Partnerships

Nine partnerships are on record, tiered minor and core.

• Schoenherr law firmminorImplementation/ SI/ Consulting Partner · 19 June 2026Schoenherr advised 20VC on the EUR 14.6 million seed financing round for Fonio.ai. Legal counsel for the investment transaction.
• Law & StrategyminorImplementation/ SI/ Consulting Partner · 19 June 2026Law & Strategy served as legal counsel to Fonio.ai for the EUR 14.6 million seed financing round.
• AI UnioncoreChannel Partner/ Reseller/ DistributorAI Union is a key partner generating over €30,000 in monthly revenue from fonio setups. They have built their voice agent business around fonio and expanded their team based on this partnership.
• Digital ApescoreChannel Partner/ Reseller/ DistributorDigital Apes is a partner that has successfully deployed fonio to over 30 customers, achieving immediate value. They integrate fonio as part of their digital solutions offering.
• Meistertelefon.decoreChannel Partner/ Reseller/ DistributorMeistertelefon has built an entire business around fonio, representing a future-oriented partnership model. They report monthly growth with fonio and appreciate the collaborative, equal partnership.
• EasybellminorChannel Partner/ Reseller/ DistributorEasybell is a telecommunications partner whose solutions complement fonio, allowing partners to expand their business scope and build new expertise.
• UnicopeminorChannel Partner/ Reseller/ DistributorUnicope is a partner in the fonio partner ecosystem.
• KYNOVAminorChannel Partner/ Reseller/ DistributorKYNOVA tested other solutions but chose fonio for its quality, excellent support, and intuitive onboarding. They recommend fonio for its superior product performance.
• Base2 IT Consult GmbHminorChannel Partner/ Reseller/ DistributorBase2 uses fonio for their own operations and appreciates the fun factor and daily ease of use. The open API provides unique technical possibilities.

Scale indicators8 records

Recent moves6 records

Expansion highlights8 records

Direct peers

• Synthflow AI: Berlin-based AI voice agent platform for SMBs and enterprises, offering no-code voice assistants for inbound/outbound calls, scheduling, and CRM integration. Direct competitor targeting the same SMB-to-enterprise voice AI market as fonio, with overlapping geographic focus on DACH and Europe.
• Parloa: Berlin-headquartered conversational AI platform for enterprise customer service, with strong voice agent capabilities and recent funding at unicorn-scale valuation. Competes with fonio in enterprise AI voice agents but skews upmarket toward larger contact centers.
• Cognigy: Düsseldorf-based enterprise conversational AI platform providing voice and chat agents for customer service automation. Direct competitor in European AI agent space with broader enterprise focus and existing deployments at large contact centers.
• Vapi: US-based developer platform for building AI voice agents with low-latency voice infrastructure. Competes with fonio in AI voice agent technology though focused more on developer/API customers rather than fonio's SMB self-serve and partner-led motion.
• Retell AI: AI voice agent platform enabling businesses to build, test, and deploy phone-call-handling AI agents. Direct technology peer competing in the same AI phone agent category with similar API-first positioning.
• Bland AI: US-based AI phone calling platform for enterprises to automate inbound and outbound calls using natural-sounding AI agents. Competes directly in AI phone agent space, though targeting larger enterprise customers than fonio's SMB base.
• PolyAI: UK-based enterprise voice AI company building customer-led conversational assistants for call centers and hospitality. Direct peer in AI voice agent technology serving overlapping enterprise and hospitality verticals, though at much larger scale and contract sizes.
• Air AI: AI voice agent platform offering human-like conversational AI for sales and customer service phone calls. Competes with fonio in the broader AI phone agent category targeting SMB and enterprise customers.

Emerging players

• Voiceflow: Collaborative AI agent building platform for designing, prototyping, and deploying conversational AI across voice and chat. Adjacent competitor with overlapping voice agent capabilities, though more platform/builder-focused than fonio's managed voice agent product.

Broad incumbents

• RingCentral: Publicly traded business communications and contact center platform with growing AI agent capabilities (RingSense AI). Broad incumbent offering phone systems, contact center, and increasingly AI voice agents — overlapping with fonio's market but as part of a much wider portfolio.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/fonio-ai

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles15 records

Funding overview

Funding rounds2 records

Investors3 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A1 record

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about fonio.ai