What ResHarmonics does

ResHarmonics (legal entity LMM Consulting Limited, trading as res:harmonics) is a UK-based software company that has built an all-in-one cloud property management system (PMS) purpose-designed for the serviced apartment, coliving, and build-to-rent operating sectors. Founded in 2016 by Giles Horwitch-Smith and headquartered in Birmingham, the platform unifies channel management, direct booking engine, reservations, housekeeping automation, maintenance, access control, automated billing and payments, CRM, owner reporting, and guest self-service into a single multi-tenant application, with an open API for bespoke integrations. The system differentiates through a flexible stay-length model that allows a single property to be operated across short, medium, and long stay rentals in one environment, eliminating the need for separate short-stay and long-stay platforms. The platform is accessed via web and a mobile app, and is supported by 40+ native integrations with payments providers, channel managers, OTAs, accounting platforms, smart access systems, and revenue management tools.

The company serves three primary vertical segments — serviced apartment operators, coliving operators, and build-to-rent (BTR) operators — and additionally markets to a hybrid living segment that blends stay types within a single portfolio. Named customers span enterprise and mid-market operators across the UK, Sweden, Finland, Spain, Portugal, the United States, Brazil, and China, with the company claiming 15,000+ serviced apartments under management, 50,000+ monthly direct bookings, and £10m in annual booking revenue processed through the platform. ResHarmonics pursues both product-led growth (self-serve booking portal, open API, content marketing) and sales-led growth (demo/discovery call CTAs, bespoke enterprise contracts), and earns additional revenue from a consultancy services add-on leveraging 17 years of founder-led industry experience. The Professional plan starts at £500 per month excluding VAT, targeted at operators with 50+ apartments; the Enterprise plan is priced on application and includes custom development, data warehouse access, and multi-year contracts. ResHarmonics is a privately held, founder-owned, bootstrapped business with no disclosed external funding, and is pursuing ISO 27001:2022 certification to support enterprise buyer requirements.

Name

ResHarmonics

Legal name

LMM Consulting Limited

Website

https://resharmonics.com

Company type

Private

Founded year

2016

Operating status

Operating

Headcount range

11–50 employees

Short description

ResHarmonics (LMM Consulting Limited) is a UK-based cloud property management platform purpose-built for serviced apartment, coliving, and build-to-rent operators, unifying channel management, direct bookings, billing, housekeeping, and access control in a single integrated system across 15+ countries.

Ownership category

akta.pro rank

Product category

Property Management Software (Serviced Apartments, Coliving and Build-to-Rent)

NAICS

Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (5182), Business Support Services (5614)

SIC

Services-Prepackaged Software (7372)

akta.pro primary industry

Property Management Systems (PMS) (THALACAA)

akta.pro secondary industries

Guest Experience & Engagement (CRM, Messaging, Loyalty) (THALACAF), Direct Booking Platforms & Booking Engines for Hosts/Managers (THAMALAE), Central Reservation Systems (CRS) (THALACAB)

Keywords

• Property management software
• Serviced apartment software
• Coliving software
• Build-to-rent software
• Direct booking engine

Headquarters

HQ city

Birmingham

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Software

Cost components

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

Revenue model

1. Subscription SaaS — Professional Plan: Monthly or annual subscription for the Professional plan, priced from £500/month (ex. VAT), targeted at professional operators with 50+ apartments. Includes Direct Booking Engine, Channel Manager, Enquiry Management, Reservation System, Service Delivery & Housekeeping Automation, Billing & Finance Automation, Mobile App, Customer Journey Automation.
2. Subscription SaaS — Enterprise Plan: Custom pricing (POA) for larger organisations with more complex requirements. Includes everything in Professional plus Custom Development & Integration and Bespoke Reporting & Data Warehouse Access. Revenue scales with portfolio size and custom development scope.
3. Bespoke Consultancy Services: On-site and online consultancy services drawing on 17 years of industry experience, covering revenue management, direct selling and bookings, maintenance processes, efficiency, housekeeping, operations, and best practice. Additional revenue stream beyond core SaaS.

Pricing tiers

Go-to-market motion3 records

Distribution channels4 records

Marketing channels7 records

Core offering

ResHarmonics provides an all-in-one, cloud-based Property Management System (PMS) purpose-built for serviced apartment, coliving, and build-to-rent operators. The single platform replaces separate channel managers, booking engines, billing systems, housekeeping/maintenance tools, access-control stacks, CRM, owner portals, and reporting tools, and uniquely enables operators to switch any unit between short, medium, and long-stay configurations without changing plans. Revenue is generated through SaaS subscription plans (Professional from £500/month and Enterprise POA) plus optional bespoke consultancy services.

Product overview

ResHarmonics (LMM Consulting Limited t/a Res:Harmonics) offers an all-in-one Property Management System (PMS) designed specifically for the innovative living sector, encompassing serviced apartments, coliving, and build-to-rent. The platform operates as a unified system with multiple integrated modules including Channel Manager, Booking Software (Direct Booking Engine), Online Check-In, Quote Portal, Automated Emails, Housekeeping Automation, Planned and Reactive Maintenance, Access and Locks, Guest Portal, Customer Relationship Management, Property Management System, Multi-Calendar, Automated Billing and Payments, Owner Portal, and Dashboard and Reporting. Industry-specific solutions include Coliving Software, Serviced Apartment Software, and Build to Rent Software. Additional services include Consultancy and an Open API for custom integrations. The system is accessible via web and mobile app, supporting both short stay and long stay operations.

Differentiator

Problem solved

Functional benefit

Products and services

• ResHarmonics Property Management System (PMS) Platform All-in-one, cloud-based, multi-tenant Property Management System that combines channel management, direct booking engine, reservation system, automated billing and payments (Stripe/GoCardless), housekeeping and maintenance automation, smart access control integration, guest portal, owner portal, CRM, multi-calendar, and dashboards — built specifically for serviced apartment, coliving, and build-to-rent operators running short, medium, and long stays on one system.
• ResHarmonics Coliving Software Specialized configuration of the ResHarmonics PMS tailored to coliving operators, combining short, medium, and long-stay bookings within a single building, with resident portals, CRM, automated billing, housekeeping automation, and multi-site reporting for shared-living communities.
• ResHarmonics Serviced Apartment Software Configuration of the ResHarmonics PMS for serviced apartment and aparthotel operators, with OTA channel distribution, direct booking engine, automated housekeeping and maintenance turnarounds, access control, and centralised dashboards for nightly stay management.
• ResHarmonics Build-to-Rent Software Configuration of the ResHarmonics PMS for build-to-rent operators, providing KYC/affordability verification (Canopy, Homeppl), automated direct-debit rent collection (GoCardless), DocuSign contract execution, owner reporting, and the ability to flex units between long-stay and short-stay to optimize occupancy.
• ResHarmonics Consultancy Services On-site and online advisory engagements led by ResHarmonics' team of former operators, spanning revenue management, direct booking optimization, maintenance process design, housekeeping efficiency, and general operations best practice — sold separately from the SaaS subscriptions.
• ResHarmonics Open API Public Open API exposed by the ResHarmonics platform that allows customers and third parties to build custom links to external services beyond the pre-built integrations (payments, channel managers, access control, accounting, marketing automation, BI, AI assistants).

Quantifiable outcome

• Increase productivity by as much as 40% with integrated property management tools
• +5 more outcomes

Named customers10 records

Segments4 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

Yes

API docs

API detail

Core technology

AI maturity

App detail

Integration39 records

AI capability4 records

Feature16 records

Partnerships

24 partnerships are on record, tiered core, major and minor.

• StripecoreTechnology or IntegrationIntegrated payment processing provider for secure online payments, card machines, and telephone payments. Stripe handles PCI DSS compliant payment authentication including 3D secure for online bookings through res:harmonics' booking engine and billing system.
• GoCardlesscoreTechnology or IntegrationDirect debit payment integration for recurring billing, enabling automated rent collection and monthly payments at lower fees than credit card processing. Integral to long-stay billing automation.
• SaltocoreTechnology or IntegrationCloud-based access control and smart lock solution integrated with the PMS. Generates and manages dynamic access codes sent to guests in automated arrival communications.
• RemoteLockcoreTechnology or IntegrationUniversal access control platform integrated for smart property access management. Enables remote keyless entry management across property portfolios.
• DocuSigncoreTechnology or IntegrationE-signature integration for online contract signing. Enables automated booking confirmations with flexibility for auto-extensions and digital lease execution for long-stay tenants.
• XeromajorTechnology or IntegrationAccounting software integration syncing billing and payment data from the PMS into Xero's accounting platform. Part of the financial management ecosystem.
• QuickBooksmajorTechnology or IntegrationQuickBooks Online integration for accounting and financial management. Roomspace case study specifically mentions QuickBooks integration as part of rapid accounting system integration.
• SiteMindercoreTechnology or IntegrationChannel manager integration connecting to 400+ booking channels. Part of the multi-channel distribution strategy pushing rates and availability to OTAs globally.
• Rentals UnitedmajorTechnology or IntegrationAdvanced distribution platform for professional short-term rental property managers. Enables listing on worldwide booking channels with synchronized inventory and pricing.
• MailchimpmajorTechnology or IntegrationCRM and email marketing integration. Synchronizes marketing lists for bulk personalized email campaigns. CRM functionality syncs contact data for targeted marketing automation.
• HubSpotmajorTechnology or IntegrationCRM platform integration for marketing, sales, and customer service. Enables connected marketing workflows and customer data management across the platform.
• PriceLabsmajorTechnology or IntegrationDynamic pricing tool using predictive analytics and machine learning to maximize revenue. Integrated for yield management and demand-based pricing optimization.
• FLYRmajorTechnology or IntegrationRevenue intelligence platform for the hospitality industry. Provides decision intelligence and business intelligence tools integrated into the PMS for revenue optimization.
• CanopycoreTechnology or IntegrationAffordability and credit verification for tenants. Integrated for KYC compliance in build-to-rent and long-stay bookings to verify tenants can afford rent.
• HomepplcoreTechnology or IntegrationTenant risk detection and affordability checking for KYC compliance. Helps reveal customer risk, detect application fraud, and qualify customers for long-stay bookings.
• Luckey (Sofia/ISEO)coreTechnology or IntegrationSmart access management platform integrated for contactless entry and property access automation. Part of automated arrival process.
• KeyCafemajorTechnology or IntegrationPhysical key management and access control system for properties. Simplifies key control across units through cloud-based key tracking and management.
• Octopus AImajorTechnology or IntegrationMultichannel, multilingual AI assistant for serviced apartments. Automates guest queries, service issues, and booking requests across web, email, WhatsApp, and social media. Human-takeover feature available.
• AskVinny AImajorTechnology or IntegrationAI-driven operations and communication platform for property management. Automates lead handling, tenant communication, and team workflows to reduce manual effort.
• ZapiermajorTechnology or IntegrationAutomation platform enabling custom workflows connecting res:harmonics with thousands of other apps without custom development. Extends platform connectivity.
• Inventory HivemajorTechnology or IntegrationCloud-based property reporting solution providing paperless inventory management and 360° virtual tours for over 30,000 units. Integrated for end-of-tenancy inventory checks.
• Trust PaymentsmajorTechnology or IntegrationSecure online payment gateway for processing payments across devices. Alternative payment processor integrated for flexibility in payment collection.
• FixflomajorTechnology or IntegrationSpecialist property repairs and maintenance software. Streamlines complex repair processes and keeps property management communications in one centralized location.
• 10x by SpacemademinorOthersCo-working/incubator space in Birmingham where res:harmonics is headquartered. Provides workspace and potentially startup ecosystem support.

Scale indicators10 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Mews: Cloud-native PMS and hospitality operating system serving hotels, hostels, and serviced apartments globally. Most direct competitor to ResHarmonics in the integrated PMS space, with broader scale and significantly larger funding.
• Cloudbeds: All-in-one hospitality platform for independent hotels, hostels, and serviced apartment operators, combining PMS, channel manager, and booking engine. Direct competitor with overlapping target customer base.
• Guesty: Property management platform for short-term rental operators including serviced apartments and vacation rentals. Competes with ResHarmonics in the multi-unit residential-stay PMS category with comparable feature breadth.
• Hostaway: Vacation rental property management software with channel manager, PMS, and unified inbox. Direct competitor in the residential short/mid-stay PMS category with similar OTA-centric distribution approach.
• Smoobu: Vacation rental management software for SMB property managers with channel manager and booking engine. Comparable in offering though smaller-scale and more SMB-oriented than ResHarmonics.
• BookingSync: Channel manager and property management system for vacation rental professionals. Direct overlap in PMS plus OTA distribution capabilities for short-stay residential operators.
• RMS Cloud: Cloud-based hospitality property management system for hotels, serviced apartments, and resorts. Direct competitor in multi-property residential-stay PMS, now part of the Mews group.

Broad incumbents

• SiteMinder: Largest independent hotel channel manager connecting 400+ booking channels globally with expanding PMS offerings. Broader incumbent in hospitality tech that ResHarmonics also integrates with.

Emerging players

• Little Hotelier: Property management system tailored for small hotels, B&Bs, and small serviced apartment operators. Comparable product shape at the smaller end of the market where ResHarmonics' Professional plan also competes.
• Track Hospitality Software: Hospitality software targeting serviced apartments, hotels, and aparthotels with PMS, channel manager, and booking engine. Direct competitor focused on the serviced apartment vertical specifically.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks7 records

Key highlights7 records

Customer concentration

• Xx.com/resharmonics
• Facebookfacebook.com/resharmonics
• LinkedInlinkedin.com/company/res-harmonics

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

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 ResHarmonics