What Star Net Telecomunicacoes does

Telsim, operating under the legal entity Star Net Telecomunicacoes, is a privately held Brazilian business-to-business telecommunications provider headquartered in São Paulo. The company delivers an integrated suite of voice, data, and internet services, including SIP/PABX trunking, 0303 telemarketing and 0800 toll-free number services, dedicated internet links (Link Dedicado) with symmetric bandwidth and a 99.9% SLA, L2L (Location-to-Location) VPN for multi-site enterprises, and an Omnichannel unified communications platform with WhatsApp integration, chatbot, and sentiment analysis. Underlying technology is based on SIP, PABX, dedicated internet links, and L2L VPN infrastructure operating over a privately managed network, with Anatel regulatory compliance for the special-number services.

Telsim serves primarily enterprise and multi-location corporate customers in Brazil through a direct sales motion, with quote-based subscription pricing personalized by company size, number of sites, call volume, and bandwidth requirements. Recurring monthly contracts drive four revenue streams: voice (SIP/PABX, 0800, 0303), dedicated internet access, L2L VPN data services, and Omnichannel platform subscriptions, with additional charges for customization and integration. Distribution is direct via field and inside sales, supported by a client portal (Área do Cliente) and basic email/phone marketing channels; no partner or reseller channel is in use.

The firm reports 10+ years of operating history (founded circa 2014), 500+ active corporate clients, 99.9% uptime across services, and 24/7 technical support, while operating with a lean headcount of 8 employees. Ownership, management team composition, and financial metrics are not disclosed in available materials.

Name

Star Net Telecomunicacoes

Legal name

Telsim

Website

https://telsim.com.br

Company type

Private

Founded year

2014

Operating status

Operating

Headcount range

1–10 employees

Short description

Telsim (Star Net Telecomunicacoes) is a São Paulo-based B2B telecommunications provider offering SIP/PABX voice, Anatel-compliant 0303/0800 numbers, dedicated internet, L2L VPN, and an Omnichannel platform to 500+ Brazilian enterprise and multi-location clients via subscription contracts.

Ownership category

akta.pro rank

Product category

Business Telecommunications Services

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)

Keywords

• Business telecommunications services
• Voice over IP services
• Dedicated internet links
• VPN network services
• Unified communications platform

Headquarters

HQ city

São Paulo

HQ country

Brazil

HQ region

Latin America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Voice Services: Recurring revenue from SIP/PABX trunking, toll-free numbers (0800), and telemarketing services (0303). Revenue generated through monthly subscription fees and per-call charges based on usage patterns.
2. Internet Dedicated Links: Monthly recurring fees for dedicated internet connections with guaranteed bandwidth and SLA commitments. Typically billed on annual or multi-year contracts.
3. Data Services (L2L VPN): Recurring revenue from private network connections between business locations, charged based on bandwidth requirements and number of connected sites.
4. Omnichannel Platform: Subscription-based access to unified communication platform with additional charges for customization and integration services.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels4 records

Core offering

Star Net Telecomunicacoes (Telsim) is a B2B telecommunications provider delivering business-grade voice and data services, including SIP trunking with PABX, 0303 and 0800 non-geographic numbers, dedicated internet links, L2L VPN networking, and an omnichannel communications platform. The company serves business customers with consolidated telecom contracts, 99.9% uptime guarantees, and 24/7 support from its base in São Paulo, Brazil.

Product overview

Telsim (Star Net Telecomunicacoes) is a telecommunications company offering a unified portfolio of business telecommunications services. The product suite includes SIP & PABX for voice over IP telephony, 0303 & 0800 special number services, dedicated internet (Link Dedicado), L2L VPN for multi-site connectivity, and an Omnichannel platform for unified communications. These services work together to provide comprehensive voice, data, and internet solutions for businesses of all sizes.

Differentiator

Problem solved

Functional benefit

Products and services

• SIP & PABX Business telephony service combining SIP trunking with PABX (Private Automatic Branch Exchange) functionality, enabling companies to manage internal and external voice communications over IP. Targeted at business customers seeking to replace or upgrade traditional phone systems with VoIP-based enterprise telephony.
• 0303 & 0800 Non-geographic business numbers (0303 and 0800 toll-free lines) for customer-facing operations such as sales, support, and service centers. Provided for businesses that need national reach and easy-to-remember contact numbers for their customers.
• Link Dedicado Dedicated internet link service providing businesses with a private, high-availability connectivity line. Designed for companies requiring guaranteed bandwidth and uptime for their operations, supporting the 99.9% uptime SLA advertised by Telsim.
• L2L VPN LAN-to-LAN (L2L) VPN service that securely connects multiple business sites or offices over a private network. Targeted at multi-location businesses that need secure, reliable interconnection between branches, data, and voice systems.
• Omnichannel Omnichannel customer communications platform that unifies phone, WhatsApp, Telegram, Messenger, and Webchat into a single business interface. Designed for businesses that interact with customers across multiple digital channels and want centralized management of customer conversations.

Quantifiable outcome

• Up to 60% cost reduction in telecommunications expenses through SIP technology
• +2 more outcomes

Named customers3 records

Segments2 records

Ideal customer profiles1 record

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Scale indicators4 records

Recent moves3 records

Expansion highlights2 records

Regional players

• Algar Telecom: Regional incumbent operating primarily in Brazil's interior with corporate telecom, data, and cloud offerings. Closest mid-sized incumbent to Telsim in business model, with a similar focus on SMB and corporate voice/data services.

Broad incumbents

• TIM Brasil: Major Brazilian mobile and fixed telecom carrier offering enterprise connectivity, VoIP, and dedicated links. Direct overlap with Telsim on B2B communications and dedicated internet services.
• Claro Brasil: Major Brazilian carrier (part of América Móvil) providing fixed and mobile telecom, broadband, and enterprise solutions. Overlaps with Telsim on dedicated internet, SIP/PABX, and corporate communications for SMBs and enterprises.
• Avaya: Global provider of business communications, UCaaS, and contact center solutions with presence in Brazil. Comparable to Telsim on the SIP/PABX and omnichannel/contact center stack, though Avaya is a much larger, diversified vendor.
• Embratel (Claro Empresas): Brazilian enterprise telecom specialist within the América Móvil group, focused on corporate voice, data, and dedicated connectivity. Comparable to Telsim in its B2B voice and dedicated link portfolio, but at far larger scale.
• Oi (Oi S.A.): Historic Brazilian incumbent offering fixed-line, broadband, and corporate telecom services. Competes with Telsim in dedicated internet, voice, and multi-site connectivity for businesses across Brazil.
• Vivo (Telefônica Brasil): Brazil's largest telecom carrier offering mobile, fixed broadband, VoIP/PBX and enterprise connectivity. Comparable to Telsim as it directly competes in SIP trunking, dedicated internet, and corporate voice, but at massive scale and as part of a full-stack portfolio.

Direct peers

• 3C Plus: Brazilian cloud telephony and PABX provider offering VoIP, SIP trunking, and communication APIs to businesses. Directly comparable to Telsim on hosted telephony and SIP/PABX technology for SMB and enterprise customers.
• Total Telecom (Total Telecomunicações): Brazilian SME-focused VoIP and telecom provider offering SIP trunking, PABX, and dedicated internet. Directly comparable to Telsim in product mix, target customer (SMB/enterprise), and Anatel-compliant delivery model.
• BRDigital Telecom: Brazilian B2B telecom provider offering SIP trunking, dedicated links, and corporate voice services. Comparable to Telsim across dedicated internet and hosted telephony with a similar SMB/mid-market focus.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/star-net-telecomunicacoes

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 Star Net Telecomunicacoes