What Gradwell does

Gradwell Communications Limited is a UK-based business communications provider founded in 1998 by Peter Gradwell, headquartered in Bath, England, with a regional office in Leeds. The company delivers cloud-based voice, connectivity, and unified communications services to small and medium-sized enterprises, with particular depth in the education, healthcare, charity, and multi-site mid-market segments. Its core products are the proprietary Wave cloud phone system, the Wave Teams+ Microsoft Teams integration add-on, a resold 3CX IP PBX offering (in which Gradwell is Europe's leading Titanium Partner), Microsoft Teams Direct Routing via its hosted Session Border Controller, owned SIP trunk infrastructure, business broadband (ADSL to 10Gbps Ethernet), leased lines, and business mobile. Gradwell monetises primarily through per-user subscription voice licences (typically 2-year minimum terms), usage-based SIP trunking bundles, multi-year broadband contracts, hardware sales of pre-configured handsets, and professional services for migration and deployment.

Gradwell's go-to-market blends direct sales for enterprise and mid-market accounts with an extensive channel partner programme targeting MSPs, IT consultancies, telephony resellers, and office space providers. The company serves more than 9,000 UK customers across sectors and is positioned as a trusted advisor for the UK's PSTN/ISDN switch-off, holding Fit to Switch National Champion status and offering a dedicated PSTN Replacement Bundle for channel partners. Tech-stack differentiators include proprietary ownership of SIP trunk infrastructure, ISO 27001 and Microsoft Gold Partner certifications, and a deep bench of 3CX-certified engineers. The company has executed two disclosed acquisitions (The Technology Group in 2021 and Grapevine Connect Limited in October 2024) and was itself acquired by LDC-backed Onecom Group in July 2025, operating since as a brand within the Onecom portfolio of companies.

Name

Gradwell

Legal name

Gradwell Communications Limited

Website

https://gradwell.com

Company type

Private

Founded year

1998

Operating status

Operating

Headcount range

51–100 employees

Short description

Gradwell Communications is a UK-based business communications provider offering VoIP phone systems, SIP trunking, broadband, and Microsoft Teams integration to over 9,000 small and medium-sized enterprises across education, healthcare, charity, and commercial sectors.

Ownership category

akta.pro rank

Product category

Business Communications

NAICS

Wired Telecommunications Carriers (517111), Computer Systems Design and Related Services (54151)

SIC

Telephone Communications (No Radiotelephone) (4813), Services-Computer Integrated Systems Design (7373)

akta.pro primary industry

VoIP Access & ITSP Services (HDAIAHAD)

Keywords

• VoIP phone systems
• Business broadband
• SIP trunking
• Unified communications
• Cloud telephony

Headquarters

HQ city

Bath

HQ country

United Kingdom

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. VoIP Phone Systems: Subscription-based hosted phone system revenue from Wave and 3CX platforms. Includes per-user licensing with features bundled into base license. Minimum contract periods of 2 years for voice services.
2. SIP Trunking: Flexible pay-as-you-go or blended minute bundles including international options. Revenue based on usage patterns and bundled packages.
3. Business Broadband and Connectivity: Internet connectivity services including ADSL, ethernet, and fibre. Bundled with voice services for comprehensive communications packages. 3-year minimum contract for broadband services.
4. Business Mobile: Mobile services bundled with fixed-line communications for unified communications offering.
5. Hardware Sales: Sale of IP phones, handsets, and equipment. Hardware is sold with services and can be pre-configured for plug-and-play deployment.
6. Professional Services: Implementation, migration, and ongoing technical support services. Includes project management for complex deployments such as multi-site unified communications rollouts.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels6 records

Core offering

Gradwell provides cloud-based business communications for UK SMEs, delivering proprietary VoIP phone systems (Wave), resold 3CX IP PBX, owned SIP trunking, business broadband (ADSL to 10Gbps Ethernet), leased lines, business mobile, and Microsoft Teams Direct Routing as a unified communications portfolio. The company bundles hardware (pre-configured handsets), software, network infrastructure, and UK-based support into turnkey solutions for organisations migrating from legacy PSTN/ISDN systems.

Product overview

Gradwell offers a unified communications portfolio combining proprietary and third-party products. The core offering centers on Wave, their proprietary cloud-based VoIP phone system, supplemented by resold 3CX IP PBX services (as Europe's leading 3CX Titanium Partner). Connectivity is delivered through their owned and operated SIP trunk infrastructure, business broadband (ADSL to 10Gbps Ethernet), and leased lines. Microsoft Teams integration is available through three pathways: Teams Direct Routing, Wave Teams+, and 3CX Integration. Business mobile services and PSTN migration support complete the portfolio. The company operates as part of the Onecom Group following acquisition in July 2025.

Differentiator

Problem solved

Functional benefit

Brands

• Wave: Gradwell's proprietary cloud-based phone system designed for SMEs, featuring VoIP telephony, call handling, softphone apps, and Microsoft Teams integration. Awarded PC Pro Recommended status.
• Wave Teams+

Products and services

• Wave Gradwell's proprietary cloud-based VoIP phone system designed for SMEs, offering call handling, hunt groups, call queues, IVR, call recording, and softphone apps for mobile and desktop.
• 3CX IP PBX Third-party IP PBX phone system that Gradwell resells, hosts, and supports as Europe's leading 3CX Titanium Partner, including unified communications, remote working, and softphone features.
• SIP Trunks Owned and operated SIP trunk infrastructure providing resilient, flexible voice connectivity with pay-as-you-go or blended minute bundles, fully compatible with all leading phone system platforms including pre-built templates for 3CX.
• Business Mobile Mobile telecommunications services for business customers providing cellular voice and data connectivity as part of a unified communications solution bundling with fixed-line services.
• Business Broadband Internet connectivity services ranging from ADSL to 10Gbps Ethernet, including SoGEA and FTTP options, with market comparison to find competitive pricing and UK-based support.
• Leased Lines Dedicated ethernet connectivity providing guaranteed bandwidth and service levels for businesses with complex or high-capacity connectivity requirements.
• PSTN Switch-off Migration Services Migration and transition services helping businesses move from legacy PSTN and ISDN infrastructure to all-IP solutions ahead of the UK network shutdown, including number porting and infrastructure assessment.
• PSTN Replacement Bundle Purpose-built bundled channel solution for MSPs and voice resellers targeting the SME market, combining Wave VoIP, SoGEA/FTTP Broadband, and handsets for simplified PSTN migration.

Quantifiable outcome

• 50% reduction in communication costs for Multi-Academy Trust (8 schools)
• +2 more outcomes

Named customers9 records

Segments5 records

Ideal customer profiles5 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration3 records

Feature6 records

Partnerships

Five partnerships are on record, tiered core and minor.

• Onecom GroupcoreStrategic or Co-development PartnerOnecom Group is the parent company of Gradwell Communications. Onecom acquired Gradwell in July 2025 as part of its thirteenth acquisition since 2020. Gradwell operates as part of the Onecom Group of companies which includes Onecom Limited, Onecom Partners Limited, IMS Technology Services Limited, Daly Systems Limited, and others.
• 3CXcoreTechnology or IntegrationEurope's leading 3CX Titanium Partner with the most certified engineers. Gradwell is a preferred and certified supplier of SIP Trunks for 3CX users with pre-built templates enabling quick deployment. The acquisition of The Technology Group in 2021 made Gradwell the largest 3CX partner in EMEA.
• MicrosoftcoreTechnology or IntegrationMicrosoft Gold Partner status with expertise in Teams Direct Routing. Gradwell helped Microsoft pilot and test Teams Direct Routing technology and offers certified SBC hosting for Teams integration.
• Internet Services Providers Association (ITSPA)minorOthersMember of the UK Internet Services Providers Association, the industry-funded regulatory body for premium-rate telecommunications services.
• Ombudsman ServicesminorOthersGradwell is registered with the Ombudsman Service who provides independent dispute resolution for telecommunications disputes.

Scale indicators5 records

Recent moves6 records

Expansion highlights6 records

Broad incumbents

• RingCentral: RingCentral is a global cloud UCaaS provider targeting SMBs and enterprises. Overlaps with Gradwell's hosted VoIP and Teams-style unified communications offerings but serves a much broader, international customer base.
• 8x8: 8x8 is a global UCaaS and contact center provider serving SMEs and large enterprises. Direct substitute for Gradwell's hosted voice and Teams integration offerings at significantly larger scale.
• Vodafone Business UK: Vodafone Business offers UK SMEs unified communications, mobile, fixed-line, and SIP services. Broadly comparable offering to Gradwell's bundled mobile + broadband + voice portfolio, but at carrier scale.
• Vonage (now part of Ericsson): Vonage is a global UCaaS/communications platform provider with a UK presence, offering cloud voice, SIP, and APIs. Competes broadly with Gradwell on hosted VoIP and APIs, but at much larger scale and with a global portfolio.
• BT Business: BT is the incumbent UK carrier and dominant SIP/connectivity provider to UK businesses, actively pushing PSTN-to-IP migrations. Overlaps with Gradwell across voice, broadband, and PSTN switch-off migration services.

Direct peers

• Gamma Communications: Gamma is a UK-listed provider of unified communications, SIP trunking, and broadband to SMEs and channel partners. Direct competitor to Gradwell across hosted voice, SIP, and connectivity with overlapping channel-partner go-to-market.
• Daisy Communications: Daisy is a large UK managed service provider of voice, connectivity, and cloud services to SMEs and mid-market. Competes with Gradwell on hosted VoIP, SIP trunks, and business broadband, often through a channel model similar to Gradwell's.
• Virtual1: Virtual1 is a UK wholesale-only network operator providing connectivity, SIP, and cloud services to channel partners. A close peer to Gradwell's wholesale/channel-focused SIP and connectivity offering, often serving the same MSP/reseller base.
• TalkTalk Business: TalkTalk Business serves UK SMEs and partners with wholesale and retail broadband, voice, and SIP trunking. A direct competitor on connectivity and SIP, often resold via partners like Gradwell's customer base.
• Cloud Voice / VoIP Unlimited (Gamma group): UK-focused hosted VoIP and SIP trunk providers serving SMEs and resellers with bundled voice and connectivity. Compete head-to-head with Gradwell on SME phone systems, SIP, and channel pricing.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• Xx.com/gradwelltweets
• Facebookfacebook.com/111074815649740
• LinkedInlinkedin.com/company/gradwell

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Subsidiaries1 record

Funding overview

Funding rounds1 record

Investors1 record

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 Gradwell