Mast
Mast is a UK-based fintech founded in 2020 that provides cloud-native mortgage origination software (Origin platform) to UK building societies and specialist lenders. It delivers an API-first, modular SaaS solution with AI-powered document processing, automated policy workflows, and integrations across the UK lending ecosystem.
- Company typePrivate
- Founded2020
- HeadquartersLondon, United Kingdom
- Headcount11–50
- GTM typeB2B
- OfferingSoftware
What Mast does
Mast is a London-based fintech founded in 2020 that builds cloud-native mortgage origination software for UK lenders. Its core platform, Origin, is delivered as an API-first SaaS solution hosted on AWS in EU and UK regions and is positioned as the first cloud-native loan origination system built specifically for the UK market. The platform enables building societies, specialist lenders, and mortgage providers to configure products, automate policy checks, and process applications end-to-end without developer involvement, with a modular architecture supporting integrations to credit, valuation, AML, and core banking providers (Finastra, Mambu, Tuum, 10x Banking, LexisNexis, Lending Metrics, Synectics, and others). A companion product, Assist, extends lender-facing support capabilities, and the company has added AI-powered document processing via Sikoia and a Lending Policy Assistant feature in 2025. The company is ISO 27001 certified, Cyber Essentials Plus certified, and GDPR compliant, which are necessary credentials for selling into regulated UK financial institutions.
Mast operates a sales-led go-to-market targeting enterprise and mid-market UK lenders, with direct field sales, partner referrals, and a self-serve broker portal as supporting channels. Pricing is quote-based SaaS on an annual billing cadence, augmented by growth-orientated usage-based elements; pricing is not publicly disclosed. To date, named customers include Melton Building Society, Cumberland Building Society, Tipton & Coseley Building Society, MBS Lending, and Leek Building Society, with reported outcomes including a 22% increase in application-to-completion conversion at Melton and a sub-four-month full rollout at Cumberland.
The company is venture-backed, having raised a pre-seed and a £1.2M seed round led by Antler VC in June 2022, with participation from high-profile angels including founders of Booking.com, Monzo, and ThirdFort. Headcount is reported at 11–50 employees and the headquarters is at Aldwych House, London. In 2025 Mast was recognised at the MoneyAge Awards as LendTech of the Year and Best Technology Provider, and joined the Equity Release Council, signalling intent to extend into the later-life lending segment. Revenue figures are not publicly disclosed.
Mast firmographics
Firmographics- Name
- Mast
- Legal name
- Mast Technologies Ltd
- Website
- https://usemast.com
- Company type
- Private
- Founded year
- 2020
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Mast is a UK-based fintech founded in 2020 that provides cloud-native mortgage origination software (Origin platform) to UK building societies and specialist lenders. It delivers an API-first, modular SaaS solution with AI-powered document processing, automated policy workflows, and integrations across the UK lending ecosystem.
- Ownership category
- akta.pro rank
Mast industry classification
Industry- Product category
- Mortgage Origination Software
- NAICS
- Mortgage and Nonmortgage Loan Brokers (52231)
- SIC
- Mortgage Bankers & Loan Correspondents (6162)
- akta.pro primary industry
- Consumer Direct / Online Mortgage Origination (FSALAAAB)
Keywords
Where Mast is headquartered
LocationHeadquarters
- HQ city
- London
- HQ country
- United Kingdom
- HQ region
- Europe
Offices1 record
Markets served
Mast business model
Business model- GTM type
- B2B
- Offering type
- Software
- Cost components
- Personnel, Technology or R&D, Marketing or Sales, Infrastructure, Operations
Revenue model
- SaaS Platform Subscription: Mast is delivered as a hosted SaaS solution with subscription-based pricing. Lenders access the platform via web browser with seamless updates, bug fixes and new features delivered continuously without downtime.
- Usage-Based Pricing: The company mentions growth-orientated pricing on their platform features, indicating a usage-based or hybrid pricing model that scales with lender activity.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Subscription | Annual | SaaS platform with subscription-based pricing |
Go-to-market motion1 record
Distribution channels3 records
Marketing channels5 records
Mast product offering
Product offeringCore offering
Mast builds and sells a cloud-native, fully configurable SaaS mortgage origination platform (Origin) that enables UK mortgage lenders and building societies to submit, underwrite, and complete mortgage applications faster, with automated policy checks, product management, and broker-lender communication. It is delivered as a multi-tenant web-based SaaS hosted on AWS in EU/UK regions, with an API-first architecture and an accompanying Assist module that provides additional lender support capabilities across the origination workflow.
Product overview
Mast is a fintech company building cloud-native mortgage origination software with a platform-plus-modules architecture. The core product is Origin, a comprehensive loan origination platform for the UK mortgage market, complemented by Assist which provides additional lender support capabilities. The platform enables lenders to configure workflows, automate policy checks, process applications faster, and integrate with third-party services including decisioning engines, ID&V providers, and banking platforms. Lenders access the platform as a multi-tenant SaaS solution delivered via web browser.
Differentiator
Problem solved
Functional benefit
Products and services
- Origin (Mast Platform) Cloud-native, fully configurable mortgage origination SaaS platform for UK lenders that supports end-to-end application processing from DIP through underwriting to completion, with automated policy checks, product management, two-way broker-lender messaging, and an API-first architecture for integrations with credit, ID&V, AML, valuation, and core banking providers.
- Assist Companion module to Origin that provides additional support capabilities for lenders, enabling enhanced processing and assistance throughout the mortgage origination workflow.
Quantifiable outcome
- Melton Building Society increased application to completion conversion by 22%
- +2 more outcomes
Companies that use Mast
Customer profileNamed customers4 records
Segments1 record
Ideal customer profiles2 records
Mast technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- Yes
- API docs
- API detail
Core technology
AI maturity
App detail
Integration16 records
AI capability5 records
Feature6 records
Mast partnerships and signals
Strategic signalPartnerships
Ten partnerships are on record, tiered core.
- FinastracoreStrategic partnership with Finastra, a cloud-first digital banking solution provider. Finastra Essence is used by clients like Melton Building Society as their core platform, integrated with Mast's origination capabilities.
- MambucorePartnership with Mambu, a cloud banking platform provider, enabling seamless integration between core banking systems and Mast's origination platform.
- TuumcoreStrategic partnership with Tuum, a modern core banking platform, to transform banking software and enable real-time connectivity for UK mortgage market.
- Lending MetricscoreLive integration with Lending Metrics for decisioning services, enabling automated credit checks and affordability assessments within the Mast platform.
- LexisNexiscoreIntegration with LexisNexis for risk and compliance data services, supporting AML and sanctions screening within the mortgage application process.
- Synectics SolutionscoreIntegration with Synectics Solutions for fraud detection and verification services within the mortgage application journey.
- SikoiacorePartnership to bring AI-powered document processing to mortgage lenders, enhancing automated data extraction and verification capabilities.
- 10x BankingcorePartnership to enable real-time connectivity for the UK mortgage market, providing modern core banking infrastructure integration.
- FCA RegistercoreLive integration with FCA register for broker verification and compliance checking within the platform.
- AWScoreCloud infrastructure provider hosting the Mast Platform in EU and UK regions, enabling scalable, secure cloud-native delivery.
Scale indicators5 records
Recent moves6 records
Expansion highlights5 records
Mast competitors and assessment
Company assessmentDirect peers
- Mortgage Cadence (Accenture): Cloud-based mortgage origination platform serving retail lenders with workflow automation and configurable rules. Direct competitor to Mast in the mortgage LOS space, though primarily serving US lenders with a configurable SaaS model similar to Mast's Origin product.
- nCino: Cloud banking platform with a strong mortgage origination offering for retail and commercial lenders. Direct comparable in target customer (lenders) and cloud-native SaaS delivery model, with broader bank account opening and lending workflows overlapping with Mast's roadmap.
- Thought Machine: UK-based cloud-native core banking platform whose Vault platform serves challenger and incumbent banks. While Thought Machine operates at the core banking layer, it competes with Mast for the same UK lender IT budget and increasingly integrates with or replaces origination systems, making it a directly comparable cloud-native fintech for UK financial institutions.
- 10x Banking: Cloud-native core banking platform for UK challenger and incumbent banks. Direct comparable to Mast as a UK-focused cloud-native banking infrastructure provider; Mast's partnership with 10x confirms the two are ecosystem complements, but they also compete for similar lender IT modernisation budgets.
- Tavant: Digital lending solutions provider with mortgage origination platforms (FinXperience) serving US lenders and broader financial services firms. Comparable as a configurable mortgage LOS with workflow automation, though Tavant has heavier professional services component than Mast's self-service model.
- LoanPro: Cloud-native loan origination and servicing platform designed for modern lenders with API-first architecture and high configurability. Direct comparable to Mast on cloud-native, API-first, configurable LOS architecture, though LoanPro is more established in US non-mortgage consumer lending.
Broad incumbents
- ICE Mortgage Technology (Encompass): Dominant incumbent in mortgage origination software (Encompass LOS) used across thousands of US lenders and expanding globally. Comparable as a mortgage LOS provider but with a much broader product portfolio and deeply embedded customer base that represents the primary competitive threat to Mast's UK expansion.
- Mambu: Global cloud banking platform used by lenders, fintechs, and banks for loan origination and servicing. Mambu competes in adjacent layers of the lender tech stack and is also a Mast partner, making it both a competitor for origination work and a strategic ally for core banking integrations.
- Temenos: Global banking software incumbent offering origination, core banking, and digital channels to retail and commercial banks worldwide. Comparable in offering lending technology to banks, but as part of a much broader platform suite rather than a focused mortgage origination product.
Regional players
- Mortgage Brain (OpenGI): Established UK mortgage technology provider offering point-of-sale, sourcing, and compliance tools to UK mortgage intermediaries and lenders. Direct UK regional comparable to Mast in target market and use cases, though more established with broker-facing tools rather than lender-side origination.
Market position
Strengths6 records
Weaknesses5 records
Competitive moat5 records
Key risks1 record
Key highlights1 record
Customer concentration
Mast social profiles
Digital presenceMast compliance and trust
Trust signalCompliance3 records
Mast financial estimates
Financial estimateRevenue estimate
Valuation estimate
Mast leadership team
Management profileNumber of profiles
Profiles5 records
Mast funding detail
Funding detailFunding overview
Funding rounds2 records
Investors2 records
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Mast 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 Mast
What does Mast do?
Mast builds and sells a cloud-native, fully configurable SaaS mortgage origination platform (Origin) that enables UK mortgage lenders and building societies to submit, underwrite, and complete mortgage applications faster, with automated policy checks, product management, and broker-lender communication. It is delivered as a multi-tenant web-based SaaS hosted on AWS in EU/UK regions, with an API-first architecture and an accompanying Assist module that provides additional lender support capabilities across the origination workflow.
Is Mast a public or private company?
Mast is a private company. It is classified as venture growth investor backed and is currently operating.
When was Mast founded?
Mast was founded in 2020. It employs 11 to 50 people.
Where is Mast based?
Mast is headquartered in London, United Kingdom, in the Europe region.
How does Mast make money?
Two revenue lines are on record. SaaS Platform Subscription is the primary driver. The others are usage-Based Pricing.
Who are Mast's main competitors?
Direct peers on record are Mortgage Cadence (Accenture), nCino, Thought Machine, 10x Banking, Tavant and LoanPro. Broad incumbents are ICE Mortgage Technology (Encompass), Mambu and Temenos. Mortgage Brain (OpenGI) is listed as a regional player.
Does Mast have an API?
Yes. Mast is an API-first platform that can be integrated with any third party involved in the mortgage lending journey. Lenders can build their own integrations with third parties using open APIs, allowing applications to be submitted and reviewed faster with free movement of data in and out of the platform.
What industry is Mast in?
Mast's product category is Mortgage Origination Software. Its primary akta.pro industry code is FSALAAAB, Consumer Direct / Online Mortgage Origination. Its NAICS code is 52231 and its SIC code is 6162.