Monmouthshire Building Society

What Monmouthshire Building Society does

Monmouthshire Building Society is a mutual, member-owned building society established in 1869 and headquartered in Newport, Wales. It provides retail savings products, including general savings accounts, fixed-rate and instant-access Cash ISAs, bonds, and children's savings, alongside business, charity, and community savings accounts. On the lending side, the society offers residential mortgages, remortgages, further advances, and specialist buy-to-let and holiday let mortgages, with mortgage advice delivered through branch, agency, telephone, and intermediary channels.

The society operates a hybrid distribution model combining physical branches and agencies across Wales and England, an inside-sales mortgage adviser appointment channel (telephone 01633 844 340), a dedicated intermediary portal for mortgage brokers and advisers at mbs-intermediaries.com, and digital self-service channels comprising the MonBS mobile app and the My Accounts online banking platform at myaccounts.monbs.com. Mortgage calculators (affordability, monthly repayment, buy-to-let, holiday let) are embedded as mid-funnel acquisition tools. Insurance products are distributed via a referral arrangement with an authorised insurance broker.

Economically, the society operates a classic mutual building society model: it accepts retail deposits and on-lends those funds as residential and investment property mortgages, with interest margin as the core revenue engine. Insurance commissions, intermediary-sourced mortgage origination, and member cross-sell provide secondary income. The society is authorised by the Prudential Regulation Authority and regulated by the Financial Conduct Authority and PRA (Financial Services Register Number 206052), with all savings accounts FSCS-protected up to £120,000 per person. As of late 2025 it has approximately 290 colleagues and is undertaking a five-year digital transformation with Phoebus Software to modernise its account servicing platform.

Name

Monmouthshire Building Society

Legal name

Monmouthshire Building Society

Website

https://monbs.com

Company type

Private

Founded year

1869

Operating status

Operating

Headcount range

101–250 employees

Short description

Monmouthshire Building Society is a mutual, member-owned building society founded in 1869 and headquartered in Newport, Wales, providing retail savings accounts, Cash ISAs, and residential, buy-to-let, and holiday let mortgages to individuals, businesses, charities, and community organisations across Wales and England through branches, advisers, brokers, and the MonBS app.

Ownership category

akta.pro rank

Product category

Retail Banking / Building Society

NAICS

Finance and Insurance (52)

SIC

Savings Institutions, Not Federally Chartered (6036)

akta.pro primary industry

Building Societies (Mutual Mortgage/Retail Banks) (FSABAEAE)

akta.pro secondary industry

Mutual Savings Banks & Mutual Thrifts (FSABAEAD)

Keywords

• Building society savings
• Residential mortgage lending
• Cash ISA products
• Buy-to-let mortgages
• Mutual financial services

Headquarters

HQ city

Newport

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2C

Offering type

Services

Cost components

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

Revenue model

1. Mortgage Lending Income: Monmouthshire Building Society generates revenue primarily through mortgage lending, providing residential mortgages, buy-to-let mortgages, and holiday let mortgages. Interest income from mortgage loans forms the core revenue stream of the mutual building society model.
2. Savings Deposit Taking: The society accepts deposits from savers through a range of savings accounts including general savings, ISAs, bonds, children's savings, and business/charity savings. These deposits are used to fund mortgage lending activities.
3. Insurance Advisory: The society has partnered with an authorised insurance broker to offer members a range of independent insurance advice and cover, providing an additional revenue stream through referral arrangements.

Pricing tiers

Go-to-market motion3 records

Distribution channels4 records

Marketing channels5 records

Core offering

Monmouthshire Building Society is a mutual building society offering personal and business savings accounts (including Cash ISAs, Bonds, Children's Savings, and Community accounts) and a range of mortgage products (residential, buy-to-let, and holiday let). Services are delivered through branch/agency offices, an online portal (My Accounts), and the MonBS mobile app, with insurance products offered via a third-party broker partnership.

Product overview

Monmouthshire Building Society offers a mutual building society portfolio of savings, mortgage, and insurance products. The core offering includes Personal Savings Accounts (General Savings, ISAs, Bonds, Children's Savings, Budget Buddy), Business/Charity/Community Savings Accounts, and Residential Mortgages including Buy-to-Let and Holiday Let products. Digital services include the MonBS App for mobile banking, My Accounts online platform, and Mortgage Calculators. The society also provides Mortgage Adviser Appointments and insurance through an authorized broker partnership. The society was founded in 1869 and is headquartered in Newport, Wales, serving customers across Wales and England.

Differentiator

Problem solved

Functional benefit

Products and services

• Personal Savings Accounts Personal savings accounts for individual consumers in Wales and England, including General Savings Accounts, Children's Savings, and Budget Buddy regular savers, with various access and bonus options.
• Cash ISAs Tax-free Cash ISA products for individual savers, offered as 1 Year Fixed Rate Cash ISA, 2 Year Fixed Rate Cash ISA, and Instant Access Tracker Cash ISA. Open to UK residents aged 18 or over (excluding Northern Ireland).
• Bonds Fixed-term savings bonds offered to individual customers seeking fixed-rate returns over defined terms.
• Business, Charity & Community Savings Accounts Specialised savings accounts for charities, community groups, sports clubs, businesses, and solicitors requiring competitive rates on larger balances and community engagement features.
• Community Prize Draw Saver Instant access savings account with an entry into a community prize draw, available to community organisations and clubs. Offers 1.30% interest rate and is managed in any branch or agency.
• Residential Mortgages Residential mortgage products for home purchases including first-time buyer, moving home, and remortgage options. Available to residents of Wales and England via mortgage adviser appointments.
• Buy-to-Let Mortgages Specialist mortgage products for landlords and investors purchasing or refinancing residential investment properties.
• Holiday Let Mortgages Specialist mortgage products for borrowers purchasing or refinancing properties intended for short-term holiday rental use.
• Insurance General insurance products and advice provided to members through a partnership with an authorised insurance broker, offering independent cover recommendations.
• MonBS App Mobile banking application for existing and prospective customers, providing account opening, balance checking, and savings tracking capabilities, with exclusive app-only savings products.
• My Accounts Online Banking Secure online portal for customers to view and manage their savings accounts, ISA accounts, and mortgages.
• Mortgage Adviser Appointments Bookable mortgage advisory service providing personalised consultations across first-time buying, home moving, remortgaging, further advance, buy-to-let, holiday let, and rate switch scenarios.
• Mortgage Customer Saver Exclusive savings product available only to existing Monmouthshire Building Society mortgage customers, rewarding ongoing mortgage relationships.
• Mortgage Calculators Suite of interactive online calculators that allow prospective mortgage customers to estimate affordability, monthly repayments, and buy-to-let or holiday let returns.

Quantifiable outcome

• 150+ years of continuous operation serving members across Wales and England
• +1 more outcomes

Named customers1 record

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Four partnerships are on record, tiered core and minor.

• Phoebus SoftwarecoreTechnology or Integration · 31 October 2025Monmouthshire Building Society signed a five-year agreement with Phoebus Software to implement its account servicing platform. The partnership aims to enhance automation and operational efficiency in mortgage and savings management. The collaboration focuses on digital transformation, supporting complex workflows and system migrations, and aims to deliver improved outcomes for the society's members while modernising its operations.
• Smart Money PeopleminorGTM or Marketing PartnerMonmouthshire Building Society partners with Smart Money People, an independent online review platform, allowing customers to leave reviews of the society. The society displays its Customer Satisfaction Gold 2025 award from this platform on its website.
• FinelineminorGTM or Marketing PartnerMonmouthshire Building Society has partnered with Fineline, a trusted research agency, to run its Customer Connect Community surveys. Fineline contacts customers directly to conduct occasional online surveys on products, services, and communications. Customers can opt out at any time.
• Authorised Insurance BrokerminorChannel Partner/ Reseller/ DistributorThe society has partnered with an authorised insurance broker to offer members a range of independent insurance advice and cover. This partnership extends the product offering beyond core savings and mortgages to provide insurance products to members.

Scale indicators5 records

Recent moves5 records

Expansion highlights5 records

Direct peers

• Nottingham Building Society: Mid-sized UK building society offering savings, ISAs, and a residential and buy-to-let mortgage range. Comparable mutual model and multi-channel distribution including intermediary partners.
• Leeds Building Society: UK building society offering savings, ISAs, and a broad residential, buy-to-let, and holiday let mortgage range. Comparable mutual structure and emphasis on intermediary mortgage distribution.
• Skipton Building Society: The fourth largest UK building society, offering savings, mortgages, and investment products nationally. Comparable mutual model and product breadth, though materially larger in scale.
• Yorkshire Building Society: Second largest UK building society, including the Norwich & Peterborough and Barnsley brands, with national savings and mortgage offerings. Comparable mutual model with a regional brand legacy similar to Monmouthshire's Welsh roots.
• Coventry Building Society: One of the largest UK building societies, offering savings accounts, ISAs, and a full residential and buy-to-let mortgage range. Comparable mutual structure and product-led growth motion.
• Swansea Building Society: A small Welsh building society serving customers across Wales and England with savings and mortgage products. Closest direct regional peer in scale and Welsh geographic overlap.
• West Bromwich Building Society: Regional UK building society offering savings accounts, ISAs, and residential and buy-to-let mortgages. Comparable mutual structure with a strong regional brand identity.
• Bath Building Society: A small regional UK building society focused on savings and mortgages in southern England. Comparable scale, mutual model, and community-oriented positioning.
• Principality Building Society: The largest Welsh building society, headquartered in Cardiff, offering savings, residential and buy-to-let mortgages across Wales and England. Most directly comparable to Monmouthshire on geography, mutual structure, and product mix.

Broad incumbents

• Nationwide Building Society: The largest UK building society, offering a full suite of savings, mortgages, current accounts, and investment products nationally. Operates the same mutual model but at a fundamentally different scale, setting the competitive ceiling for the broader building society category.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/MonmouthshireBS
• Facebookfacebook.com/monmouthshirebs

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles9 records

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 Monmouthshire Building Society