What Zerovoz does

Zerovoz is a Spain-headquartered cloud telephony operator serving Spanish-speaking and European SMB and mid-market enterprises, operating under the Grupo Gigas umbrella following its 2022 acquisition by GIGAS HOSTING, S.A. The company delivers a cloud-based virtual PBX platform built on SIP standards, hosted in redundant cloud infrastructure, that supports softphones, IP phones, SIP trunking, and integrations with Microsoft Teams, leading CRM platforms, and OpenRainbow. Its core product portfolio spans the AI-enabled Centralita Virtual con IA, SIP trunk services for physical PBX systems, call center solutions, unified communications (UC Voice Business IA), and complementary services including Gigas Fibra (FTTH), mobile telephony, SMS broadcast, virtual fax, and numbering services (900/800, geographic, international). More than 5,000 business customers across 8 countries use the platform, with named deployments in healthcare, legal, hospitality, financial services, transportation, government, and manufacturing verticals.

The business model combines recurring subscription revenue (Plan Unlimited at €8.90/user/month, Smart IA at €11.90/user/month, UC Voice Business IA at €12.90/user/month) with usage-based calling charges, hardware sales/rentals (Grandstream, Snom, Jabra/Poly), and custom telecommunications projects scaling up to 10,000 extensions. Go-to-market is hybrid: direct sales via a commercial team (toll-free 900 800 802), inside sales, a self-serve online channel, and a structured channel partner program for IT integrators and telecom installers — with no contractual permanence for core telephony services. Recent strategic emphasis has been on AI capabilities, including the February 2025 launch of the 'Paco' virtual receptionist and AI-driven call transcription/summarization, positioning AI as a standard feature within the subscription stack rather than a premium upsell.

Zerovoz is a brand rather than a standalone entity: it is wholly owned by GIGAS HOSTING, S.A., part of the publicly listed (BME Growth, 2015) Grupo Gigas cloud infrastructure group. The company maintains CNMC telecommunications licensing, ISO 27001/27018, PCI DSS, ENS, CISPE, and GDPR certifications, and supports operations across Spain, Portugal, Ireland, Colombia, Mexico, Peru, Chile, and the United States. Customer service metrics include 97% of support tickets resolved in under 4 hours and a 99.9% availability SLA.

Name

Zerovoz

Legal name

GIGAS HOSTING, S.A.

Website

https://zerovoz.com

Company type

Private

Founded year

2014

Operating status

Operating

Headcount range

11–50 employees

Short description

Zerovoz is a Spain-based cloud telephony operator offering AI-enabled virtual PBX, SIP trunking, unified communications, and fiber services to 5,000+ business customers across 8 countries, operating as a brand within Grupo Gigas.

Ownership category

akta.pro rank

Product category

Cloud Business Telephony

NAICS

Wired Telecommunications Carriers (517111), Wired and Wireless Telecommunications (except Satellite) (5171)

SIC

Telephone Communications (No Radiotelephone) (4813), Services-Telephone Interconnect Systems (7385)

akta.pro primary industry

Cloud PBX & Hosted Telephony (HDAIAHAB)

akta.pro secondary industry

Dedicated Internet Access (DIA) & Business Broadband (HDAIAFAD)

Keywords

• Cloud telephony services
• Virtual PBX solutions
• SIP trunking
• VoIP business communications
• Unified communications platform

Headquarters

HQ city

San Fernando De Henares

HQ country

Spain

HQ region

Europe

Offices12 records

Markets served

GTM type

B2B

Offering type

Software

Cost components

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

Revenue model

1. Virtual PBX (Centralita Virtual) Subscriptions: Monthly subscription fees for cloud-based PBX service, priced per user. Plans include Unlimited (8.90 €/month), Smart IA (11.90 €/month), and UC Voice Business IA (12.90 €/month). Minimum 5 users. Includes flat-rate calling to national fixed/mobile and 50 international destinations.
2. Usage-based Calling Charges: Pay-per-minute VoIP tariffs for calls outside flat-rate bundles. National fixed: 0.013 €/min, mobile: 0.035 €/min. Calls charged by the second without connection fees (except 901/902 special numbers).
3. SIP Trunk Services: SIP trunk channels sold to businesses with physical PBX systems. Pricing based on number of concurrent channels and numerations. Can include inbound/outbound channel differentiation.
4. Mobile Telephony Services: Business mobile lines bundled with cloud communications services.
5. IP Phones and Accessories (Sale/Rental): Grandstream IP phones (GRP2603P, GXP2135, GXP2170, GRP2612W), DECT terminals (DP725, DP755), conference phones (Snom C520), and headsets sold or rented under the Premium plan.
6. Optional Add-ons: Call recording with cloud storage, call transcription and summary, CRM modules, Microsoft Teams integration, and call center packs (5,000 minutes/agent).

Pricing tiers

Go-to-market motion3 records

Distribution channels4 records

Marketing channels5 records

Core offering

Zerovoz provides cloud-based business telephony services centered on a virtual PBX (Centralita Virtual) platform delivered over VoIP/SIP. The company sells monthly subscription plans for cloud PBX features (IVR, call queues, voicemail, call recording), SIP trunk connectivity for existing on-premise PBXs, call center capabilities, unified communications with Microsoft Teams integration, and an AI-powered virtual receptionist ("Paco") with call transcription and summarization. Bundled offerings include business fiber internet (Gigas Fibra), mobile telephony, numbering services, SMS broadcast, and virtual fax, plus IP phone hardware.

Product overview

Zerovoz is a cloud-based telecommunications operator for businesses offering a comprehensive portfolio of VoIP services built around its Centralita Virtual con IA (AI-Powered Virtual PBX) as the core platform. The product suite includes SIP trunking for physical PBX systems, call center solutions, unified communications (UC Voice Business IA), and Microsoft Teams telephony integration. AI capabilities are delivered through the Recepcionista Virtual con IA (Paco) receptionist and call transcription/summarization features. Additional services include numbering (900/800, geographic, international), Gigas Fibra connectivity, mobile telephony, SMS Broadcast, and virtual fax. Hardware offerings encompass IP phones and conference equipment from vendors like Grandstream and Snom. Pricing follows subscription plans (Plan Unlimited from €8.90/month, Plan Smart IA from €11.90/month) with no permanence requirements.

Differentiator

Problem solved

Functional benefit

Products and services

• Centralita Virtual con IA Cloud-based virtual PBX system with over 50 features (auto-attendant, call queuing, IVR menus, voicemail-to-email, call recording, real-time statistics) and AI-powered receptionist for 24/7 customer service, targeted at businesses of all sizes.
• Telefonía IP (Troncal SIP) SIP trunk service connecting physical on-premise PBX systems (Alcatel-Lucent, Siemens-Unify, Asterisk-Digium certified) to the internet for VoIP calling with multiple simultaneous channels and flexible number management.
• Call Center / Contact Center Professional call center solution for businesses managing high call volumes with call queuing, real-time statistics, agent management, call recording, and optional 5,000-minute per-agent packs.
• Comunicaciones Unificadas (UC Voice Business IA) Unified communications platform integrating audio/video calls, messaging, collaboration tools, presence management, and AI capabilities across multiple devices including mobile, PC, and IP phones.
• Telefonía para Microsoft Teams Integration layer enabling Microsoft Teams users to make and receive business calls directly through the Teams application with full PBX functionality, requiring appropriate licensing.
• Recepcionista Virtual con IA (Paco) AI-powered virtual receptionist offering 24/7 automated call handling with multilingual support, intelligent call routing to appropriate departments, and FAQ resolution without human intervention, built on natural language processing.
• Numeraciones Telefónicas Telephone numbering services including geographic numbers, 900/800 toll-free numbers, 901/902 special numerations, and international numbers for business presence.
• Gigas Fibra Fiber optic internet service (FTTH) for businesses with quality-of-service guarantees, complementing the cloud telephony platform.
• Telefonía Móvil Mobile telephony services for businesses with corporate lines and 5G connectivity options, bundled with cloud communications services.
• SMS Broadcast Bulk SMS messaging service for business communications, marketing campaigns, and customer notifications.
• Fax Virtual Cloud-based fax service allowing sending and receiving faxes via email, eliminating the need for physical fax machines.
• Soluciones de Telecomunicaciones a Medida Custom telecommunications solutions developed to specification for unique business requirements, including vertical industry applications for healthcare (emergency alerts), hospitality (cloud reception), retail (emergency notifications), transportation (intercom testing), and industrial sectors.
• Teléfonos IP y Accesorios Range of IP phones and accessories including Grandstream desk phones (GRP2603P, GXP2135, GXP2170, GRP2612W), wireless DECT terminals (DP725, DP755), Snom conference phones (C520, C52-SP), and Jabra/Poly headsets, available for purchase or rental with the Premium plan.

Quantifiable outcome

• Up to 99.9% SLA with redundant cloud infrastructure
• +3 more outcomes

Named customers16 records

Segments7 records

Ideal customer profiles5 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration4 records

AI capability6 records

Feature6 records

Partnerships

One partnership is on record.

• MicrosoftcoreTechnology or IntegrationZerovoz's virtual PBX integrates natively with Microsoft Teams, allowing extensions to be configured within Teams for making and receiving calls directly from the Teams application with appropriate licensing.

Scale indicators5 records

Recent moves7 records

Expansion highlights5 records

Direct peers

• 8x8: Cloud communications provider offering hosted PBX, contact center, and unified communications for SMB and mid-market. Comparable pricing-model approach and AI feature roadmap.
• RingCentral: Global UCaaS leader offering cloud PBX, AI receptionist, and call center solutions to SMBs and enterprises. Closely comparable in product mix (cloud PBX, SIP trunking, AI features, Teams integration) and target customer base.
• Fonvirtual: Spain-based virtual PBX and cloud telephony provider targeting SMBs with subscription pricing. Directly comparable product set (cloud PBX, call center, mobile, fiber) and Spanish-speaking customer base.
• NFON: European cloud PBX specialist headquartered in Germany serving SMBs and partners across DACH and other European markets. Closely comparable in cloud-PBX-only positioning, partner channel model, and SMB focus.
• Vozelia: Spanish cloud telephony operator offering virtual PBX, VoIP, and SIP trunk services to SMBs. Direct domestic competitor with overlapping customer segments and similar regulatory positioning.

Broad incumbents

• Vonage (now part of Ericsson): Global cloud communications provider with strong API and UCaaS offerings for SMB and mid-market. Comparable product breadth including SIP trunking, AI features, and Teams integration.
• Avaya: Legacy enterprise communications provider transitioning to cloud PBX and CCaaS offerings. Competes with Zerovoz in the SIP trunk and enterprise migration segment, especially among customers with existing Avaya on-premise PBXs.
• Zoom (Zoom Phone / Zoom Contact Center): Global unified communications platform that has expanded into cloud telephony (Zoom Phone) and AI-powered features (Zoom AI Companion). Competes with Zerovoz for SMB communications budgets and is rapidly adding AI capabilities.
• Telefónica (Solución Empresas / O2 Cloud PBX): Spain's incumbent telecommunications operator offering cloud PBX and unified communications to enterprise and SMB customers. Major competitive threat due to network ownership, brand, and bundling with connectivity.
• Microsoft Teams Phone: Microsoft's native cloud telephony offering tightly integrated with Microsoft 365. Largest competitive threat for Zerovoz given bundling with the productivity suite that many SMBs already use.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/zerovoz
• Facebookfacebook.com/zerovoz
• LinkedInlinkedin.com/company/zerovoz
• Instagraminstagram.com/zerovoz_telecom

Compliance7 records

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

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

M&A

Investments

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

Frequently asked questions about Zerovoz