SoundLine
SoundLine Communications is an employee-owned, Redmond-Washington-based hosted VoIP provider offering contract-free cloud phone systems and modular add-ons to hundreds of small and mid-sized businesses across the United States.
- Company typePrivate
- Founded2008
- HeadquartersKirkland, United States
- Headcount1–10
- GTM typeB2B
- OfferingServices
What SoundLine does
SoundLine Communications, founded in 2008 in Redmond, Washington as Northwest Digits LLC, is an employee-owned hosted Voice over Internet Protocol (VoIP) provider targeting small and mid-sized businesses across the United States. The company delivers a cloud-based Hosted PBX (Private Branch Exchange) platform with a proprietary admin portal, geo-redundant infrastructure, and modular add-ons including business SMS, call recording, voicemail-to-email, voicemail-to-text transcription, auto-attendant, intelligent call routing, multi-location management, and real-time analytics. Pricing is a transparent $20 per Call Path plus $5 per User per month with no contracts, a 30-day money-back guarantee, and a $10 per-number porting fee.
The business operates primarily through direct sales with personalized consultation and a custom-configured, pre-shipped hardware model, supplemented by an MSP (Managed Service Provider) / IT-consultant reseller channel and a white-label VoIP Reseller Program. Target verticals include franchises and multi-location businesses, IT departments managing hybrid teams, healthcare, legal, real estate, construction, and professional services. With 1–10 employees, a self-imposed cap of 3,000 customers, a 95%+ reported retention rate since 2008, and no external funding disclosed, SoundLine is a capital-light, relationship-led operator prioritizing service depth over scale.
SoundLine firmographics
Firmographics- Name
- SoundLine
- Legal name
- SoundLine Communications LLC
- Website
- https://soundline.io
- Company type
- Private
- Founded year
- 2008
- Operating status
- Operating
- Headcount range
- 1–10 employees
- Short description
- SoundLine Communications is an employee-owned, Redmond-Washington-based hosted VoIP provider offering contract-free cloud phone systems and modular add-ons to hundreds of small and mid-sized businesses across the United States.
- Ownership category
- akta.pro rank
SoundLine industry classification
Industry- Product category
- Cloud Communications (Hosted VoIP / Business Phone Systems)
- NAICS
- Wired Telecommunications Carriers (517111), Telephone Apparatus Manufacturing (33421), Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (518)
- SIC
- Telephone Communications (No Radiotelephone) (4813), Services-Telephone Interconnect Systems (7385), Services-Prepackaged Software (7372)
- akta.pro primary industry
- Cloud PBX & Hosted Telephony (HDAIAHAB)
- akta.pro secondary industries
- VoIP Access & ITSP Services (HDAIAHAD), VoIP/ATA & Integrated Voice Gateways (CPE) (HDAFAIAJ), Voice Quality, Monitoring & Analytics (QoS/QoE, call recording, compliance) (HDAIAHAM)
Keywords
Where SoundLine is headquartered
LocationHeadquarters
- HQ city
- Kirkland
- HQ country
- United States
- HQ region
- North America
Offices1 record
Markets served
SoundLine business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Technology or R&D, Supply Chain, Marketing or Sales, Operations, Infrastructure
Revenue model
- VoIP Subscription Services: Monthly subscription revenue from per-call-path and per-user pricing model. Customers pay $20 per call path plus $5 per user monthly with no contracts required.
- Equipment Sales: Sale of VoIP phones and equipment needed to use the service. Equipment is sold alongside the service subscription.
- Number Porting Services: Porting fee of $10 per phone number for transferring existing numbers to SoundLine's service
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Hybrid | Monthly | All-inclusive VoIP service: $20/Call Path + $5/User |
Go-to-market motion1 record
Distribution channels4 records
Marketing channels5 records
SoundLine product offering
Product offeringCore offering
SoundLine Communications delivers a hosted, cloud-based VoIP business phone system (Cloud PBX) sold on a subscription basis at $20 per Call Path plus $5 per User per month with no contracts. The platform includes modular add-on features such as business SMS, call recording, voicemail-to-email, voicemail-to-text transcription, auto attendant, intelligent call routing, multi-location management, real-time analytics, and a custom admin portal, supported by pre-configured hardware shipped ready to install and U.S.-based human support.
Product overview
SoundLine Communications offers a unified cloud-based VoIP phone system platform (Hosted PBX/Cloud PBX) with modular add-on capabilities. The core product is a hosted business phone system priced at $20 per Call Path + $5 per User with no contracts. Add-on features include business SMS, call recording, voicemail-to-email/portal, voicemail-to-text transcription ($3/user/month), auto attendant/IVR, smart call routing, multi-location management, real-time analytics, browser-based admin portal, and mobile apps. The company also offers a VoIP Reseller Program for MSPs and consultants. The platform integrates with select CRM systems including Follow Up Boss, kvCORE, and Salesforce.
Differentiator
Problem solved
Functional benefit
Products and services
- Hosted PBX (Cloud PBX) Cloud-based VoIP hosted PBX phone system that delivers enterprise-grade business communication over the internet without requiring physical on-premise hardware. Sold to small and mid-sized businesses across the U.S. at $20 per Call Path plus $5 per User per month with no contracts, and supported by 24/7 U.S.-based human support, geo-redundant infrastructure, and a custom admin portal.
- VoIP Reseller Program Channel program that lets MSPs, IT consultants, and entrepreneurs resell SoundLine's VoIP services under their own brand (or co-branded) with recurring commissions, white-label tools, and backend implementation support. Targeted at managed service providers and IT consultants seeking a recurring-revenue value-added service.
Quantifiable outcome
- 95%+ customer retention rate since 2008
- +4 more outcomes
Companies that use SoundLine
Customer profileNamed customers8 records
Segments8 records
Ideal customer profiles6 records
SoundLine technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Integration3 records
AI capability2 records
Feature6 records
SoundLine partnerships and signals
Strategic signalPartnerships
Seven partnerships are on record, tiered core and minor.
- Amarok MSPcoreIT managed service provider partnership offering VoIP solutions to their existing client base as a value-added service.
- PK ComputingcoreIT consulting partnership providing VoIP services as an extension of their technology offerings.
- Stoddard AgencycoreAgency partnership handling both technology solutions and website development for SoundLine.
- Woodstock Media GroupminorMedia and marketing partner supporting SoundLine's brand and digital presence.
- Primas GroupcoreIT services partnership offering SoundLine VoIP solutions to their business clients.
- Sandy Beaches SoftwareminorSoftware partnership integrating technology solutions with SoundLine's VoIP platform.
- SalesforcecoreCRM integration partnership enabling automatic call logging, screen pops with client details, and better data visibility for businesses using Salesforce.
Scale indicators4 records
Recent moves5 records
Expansion highlights5 records
SoundLine competitors and assessment
Company assessmentBroad incumbents
- RingCentral: Largest pure-play cloud UCaaS/VoIP provider serving SMB through enterprise. Direct overlap with SoundLine on hosted PBX, call routing, and CRM integrations, but at vastly greater scale, capital base, and feature breadth.
- 8x8: Public UCaaS/CCaaS vendor combining hosted PBX, contact center, and video. Overlaps with SoundLine's hosted PBX offering while competing on broader unified communications portfolio.
- Vonage (Ericsson): Cloud communications provider offering hosted PBX, UCaaS, and APIs. Backed by Ericsson's resources, making it a well-capitalized competitor in the same hosted VoIP category as SoundLine.
- Zoom (Zoom Phone): Zoom Phone bundles hosted PBX/VoIP into the dominant Zoom meetings platform, threatening standalone VoIP players like SoundLine with a one-stop UC bundle for SMBs.
- Microsoft Teams Phone: Microsoft's cloud PBX add-on inside Teams competes head-on with SoundLine for SMBs already standardized on Microsoft 365, backed by massive enterprise distribution and capital.
- Mitel: Long-standing provider of business communications including hosted/cloud PBX via partners. Overlaps with SoundLine in the SMB and multi-location hosted PBX segment.
Direct peers
- Nextiva: Cloud VoIP/UCaaS provider heavily focused on SMBs and mid-market with bundled pricing, CRM integrations, and white-glove onboarding. Closest head-to-head competitor to SoundLine in the SMB hosted PBX market.
- Ooma: Cloud-based VoIP for SMBs with a published per-user pricing model and self-serve configuration. Directly comparable to SoundLine on product shape, target customer, and recurring subscription pricing.
- 3CX: Software-based PBX/VoIP solution widely deployed by SMBs and sold through MSP/IT partner channels — a structurally similar model to SoundLine's reseller-driven approach.
Emerging players
- Dialpad: AI-native cloud communications platform selling VoIP/UCaaS to SMB and mid-market. Direct competitor to SoundLine on hosted PBX while differentiating on proprietary conversational AI — the gap SoundLine is most exposed to.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key risks6 records
Key highlights6 records
Customer concentration
SoundLine social profiles
Digital presenceSoundLine financial estimates
Financial estimateRevenue estimate
Valuation estimate
SoundLine leadership team
Management profileNumber of profiles
Profiles4 records
SoundLine funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
SoundLine M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about SoundLine
What does SoundLine do?
SoundLine Communications delivers a hosted, cloud-based VoIP business phone system (Cloud PBX) sold on a subscription basis at $20 per Call Path plus $5 per User per month with no contracts. The platform includes modular add-on features such as business SMS, call recording, voicemail-to-email, voicemail-to-text transcription, auto attendant, intelligent call routing, multi-location management, real-time analytics, and a custom admin portal, supported by pre-configured hardware shipped ready to install and U.S.-based human support.
Is SoundLine a public or private company?
SoundLine is a private company. It is classified as management employee owned and is currently operating.
When was SoundLine founded?
SoundLine was founded in 2008. It employs 1 to 10 people.
Where is SoundLine based?
SoundLine is headquartered in Kirkland, United States, in the North America region.
How does SoundLine make money?
Three revenue lines are on record. VoIP Subscription Services are the primary driver. The others are equipment Sales and number Porting Services.
Who are SoundLine's main competitors?
Broad incumbents on record are RingCentral, 8x8, Vonage (Ericsson), Zoom (Zoom Phone), Microsoft Teams Phone and Mitel. Direct peers are Nextiva, Ooma and 3CX. Dialpad is listed as an emerging player.
Does SoundLine have an API?
No public API is recorded for SoundLine.
What industry is SoundLine in?
SoundLine's product category is Cloud Communications (Hosted VoIP / Business Phone Systems). Its primary akta.pro industry code is HDAIAHAB, Cloud PBX & Hosted Telephony, with a secondary code of HDAIAHAD, VoIP Access & ITSP Services. Its NAICS code is 517111 and its SIC code is 4813.