B2B Companies Using Plaid in the UK: 64 Active Firms (2026)
B2B companies running open-banking connectivity on public websites connect business applications to bank-account data in the UK.
Open-banking connectors usually sit inside onboarding, affordability checks, payment reconciliation or account-data enrichment journeys, rather than in general back-office software. For business-to-business adopters, the buying centre tends to be product, finance operations and data teams, with compliance brought in once bank-account access touches customer or employee information. Adoption signals a company that already has a digital sales or service journey and wants bank data to reduce manual checks, not merely a brochure site. The engagement is typically a contained integration project, paid for through usage-linked or subscription contracts, and run by lean teams that prefer managed connectivity over direct bank-by-bank integrations.
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Across the UK, 64 active trading companies in this business-to-business adoption cohort run the open-banking connector on public web journeys. Reported employment totals 220 people, which fits the pattern of lean operators using automation-heavy workflows rather than large service teams. Within the detected payment-processor category, the stack sits ninth, at 1.0% of a 6,674-company benchmark, so its footprint is narrower than mainstream card and checkout tools. Registered addresses skew towards London (25.0%), the North West (17.2%), the South East (15.6%), the East Midlands (10.9%) and the South West (9.4%), giving the cohort a spread beyond the capital but still with London as the main cluster.
Business-to-business adoption sits across several rulebooks because the label covers financial services, telecoms, data processing and professional services rather than a licensed industry category. Bank-account access, onboarding and transaction analysis put UK GDPR duties close to the product workflow when personal data is processed, including named business-contact details. ICO guidance also matters for go-to-market teams: PECR covers live calls, automated calls, electronic mail and fax, while the electronic-mail consent rule does not apply to corporate subscribers. Senders still need a clear identity, a valid opt-out address and calling-screening processes for CTPS and TPS objections.
Adoption appears likely to follow the maturity of embedded finance and account-data workflows rather than a broad rush across all business-to-business categories. Smaller operators tend to favour managed connectivity when bank integrations sit beside invoicing, credit assessment or payment reconciliation, but procurement scrutiny rises once the workflow handles personal data or regulated financial activity. The stack may also become less visible as open-banking features are bundled into finance, payments and workflow platforms. That points to a market where detection on public websites understates operational use, while public-facing integration still marks firms with more developed digital journeys.
Adoption by company size
Adoption of Plaid varies by company size across the trading UK B2B companies in this cohort. 0.1% of the 76,784 companies with under 10 employees run Plaid (46 detected). 0% of the 31,788 companies with 10–50 employees run Plaid (11 detected). 0% of the 3,773 companies with over 50 employees run Plaid (0 detected). That is a 0.1% gap between the over 50 employees and under 10 employees bands.
64
Active firms
2026
1%
Of detected Payment processors share
UK B2B
6
Median headcount
Filed accounts
149
Verified contacts
Across this cohort
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Key facts
About 3% of the trading cohort reports turnover above £5M (2 of 64 firms) — the rest sits below that revenue band.
12% of the cohort was incorporated since 2022 (8 firms), so a sizeable share is in its first few filing cycles.
Within B2B companies with a detectable payment-processor system, this open-banking technology accounts for 1.0% (64) against a denominator of 6,674 companies.
London accounts for 25.0% (16) of B2B firms running this open-banking technology, followed by the North West at 17.2% (11) and the South East at 15.6% (10).
The cohort skews towards software and finance-adjacent suppliers, with SaaS tagged on 26.6% (17) and Fintech on 18.8% (12), though sector tags overlap.
Stack signals are infrastructure-heavy: 93.8% (60) also show a CDN/security layer, 75.0% (48) show cloud-hosting infrastructure and 71.9% (46) show object storage.
B2B is not a single licensed industry in the UK; obligations depend on the underlying activity, while ICO, PECR and UK GDPR shape marketing and business-contact data handling.
Payments market share among UK B2B
Share of the 6,674 UK B2B with a detectable system. As of June 2026.
What else do Plaid-running B2B run?
Share of the 64 Plaid-running UK companies where each technology was also detected. As of June 2026.
Where Plaid B2B are, and how healthy they look
By region
By registered-office region; companies without a regional match count toward Rest of UK.
By financial health
From filed accounts; firms with fewer than two filings show as insufficient history.
6
Median headcount
£460.2K
Median UK turnover
3.1%
Above £5M turnover
8
Incorporated since 2022
149 verified decision-maker contacts
across these 64 companies, with emails available in Firmbase. Filter by role, seniority and stack.
Top UK B2B using Plaid
Ranked by sales-readiness score: an AI model assesses what each company does, its sector and size, and scores its overall fit. Best-fit prospects appear first.
Financial sub-scores
Computed from 3 filingsDevelops cloud software that automates bookkeeping for accounting firms and businesses. The platform collects financial data from banks and systems, extracts and categorises transactions, reconciles…
Targets accounting practices and small businesses, including firm owners managing multiple clients and business owners seeking more consistent financial administration.
Financial Health
StrongStrong · Growing, Hiring · 259% CAGR over 2y
Location
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Financial sub-scores
Computed from 3 filingsProvides a payments and financial reconciliation platform for the insurance industry. Software integrates bank, payment provider and policy administration data to automate premium collection,…
Sells to B2B organisations in the commercial insurance sector, including MGAs, insurance brokers and insurers, particularly finance, operations and technology leaders managing premiums, settlements…
Financial Health
HealthyHealthy · Hiring · 100% CAGR over 2y
Location
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Provides an online banking platform for small businesses offering checking accounts, credit cards, and access to financing. Includes tools for invoicing, bookkeeping, budgeting reserves, financial…
Serves small businesses, self-employed professionals, freelancers and consultants, including marketing advisors, web developers, brand designers, property managers, photographers and online retailers.
Financial Health
N/AN/A
Location
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Develops treasury management software for finance teams. Platform connects to bank accounts to provide real-time cash visibility, liquidity tracking, reporting, and foreign exchange exposure…
Serves B2B finance and treasury teams, CFOs and risk managers at companies managing multiple bank accounts, cash positions, entities and foreign-exchange exposures.
Financial Health
N/AN/A
Location
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Financial sub-scores
Computed from 5 filingsDevelops cloud-based accounting and bookkeeping software for small businesses and freelancers. Platform provides tools for invoicing, bank feeds, receipt capture, expense tracking, financial…
Serves UK small businesses and sole traders, including freelancers, charities, landlords, Amazon sellers, farms, photographers, fitness trainers, travel agencies and landscapers, plus accountants and…
Financial Health
StrongStrong · Hiring · 25% CAGR over 5y
Location
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Financial sub-scores
Computed from 5 filingsDevelops AI-powered digital banking software for banks and financial institutions. Provides platforms for personal financial management, transaction data enrichment and categorisation, customer…
Sells B2B to banks and financial institutions in global markets, targeting retail banking, deposits, customer engagement, digital banking and SMB/SME banking teams serving consumer and small-business…
Financial Health
HealthyHealthy · Growing, Hiring · 3% CAGR over 4y
Location
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Financial sub-scores
Computed from 3 filingsProvides online revolving credit facilities for businesses, allowing companies to access credit lines up to £350,000 to pay suppliers, purchase stock or equipment, and spread payments over several…
Serves UK businesses needing short-term working capital, including companies funding equipment, stock, bills, expenses, payroll, and international payments, with broker and partner channels also…
Financial Health
StableStable · Hiring · 73% CAGR over 2y
Location
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Financial sub-scores
Computed from 2 filingsProvides an online platform for small businesses and accountants to access business credit scores and reports, perform company credit checks, monitor financial risk, and apply for business loans…
Sells to UK limited companies, especially small businesses, and to accountants/advisers supporting clients with business finance, credit health and cash-flow risk decisions.
Financial Health
StableStable · Profitable · 5% CAGR over 1y
Location
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Financial sub-scores
Computed from 2 filingsProvides upfront funding to hospitality businesses such as restaurants, bars and cafes. Structures investment without equity, personal guarantees or fixed repayments, and offers tools and support…
Serves independent hospitality business owners in the UK seeking growth funding, particularly owner-operated venues looking to expand without taking on traditional loans or giving up equity.
Financial Health
HealthyHealthy · Hiring · 225% CAGR over 1y
Location
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Financial sub-scores
Computed from 5 filingsDevelops accounts receivable automation software that helps businesses manage outstanding invoices, send automated payment reminders via email, SMS and calls, monitor debtor activity, forecast cash…
Serves B2B finance and accounts receivable teams at businesses worldwide, plus accountants and bookkeepers supporting clients with late-payment and receivables processes.
Financial Health
StableStable · Hiring · 13% CAGR over 4y
Location
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Financial sub-scores
Computed from 5 filingsDevelops cloud-based software for property letting and management. Platform automates tenant applications, digital leases, rent collection, billing and arrears recovery, owner reporting, compliance…
Serves B2B property managers, letting agents, build-to-rent operators and larger property businesses managing rental portfolios, with plans aimed at mid-market and enterprise organisations.
Financial Health
HealthyHealthy · Hiring · 7% CAGR over 4y
Location
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Financial sub-scores
Computed from 2 filingsProvides an API-based investment infrastructure enabling fintechs to offer brokerage, trading and investment features. Services include account opening, order execution, fractional investing, savings…
Serves B2B fintechs, digital banks, brokers and wealth-management platforms, particularly European firms that want to offer investment and trading experiences to their end users.
Financial Health
StrongStrong · Growing, Hiring · 234% CAGR over 1y
Location
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Financial sub-scores
Computed from 5 filingsProvides merchant payment processing services, including credit card and mobile payments, payment gateways, terminals, and e‑commerce processing. Also offers gift and loyalty card programs, text…
Serves small and medium-sized businesses in retail, restaurants, hospitality, B2B commerce, eCommerce, trade shows and special events, including physical-location and online merchants.
Financial Health
WeakWeak · Hiring · 14% CAGR over 4y
Location
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Financial sub-scores
Computed from 4 filingsDevelops financial modelling software for startups and small businesses, enabling users to build financial forecasts, budgets, and scenario plans without spreadsheets. Provides tools and resources…
Sells to startups and small to medium-sized businesses, especially founders, business leaders and finance teams that need financial planning and forecasting support without dedicated in-house FP&A…
Financial Health
StableStable · -78% CAGR over 3y
Location
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Financial sub-scores
Computed from 2 filingsProvides digital bill payment software enabling organisations to collect payments via SMS, email, QR codes, and web widgets. Allows consumers to pay bills by scanning paper statements or uploading…
Serves B2B bill issuers, including healthcare practices, billing companies, utilities, insurers, debt collectors, field service firms, and government or municipal bodies seeking consumer payment…
Financial Health
StableStable · Hiring · 12% CAGR over 1y
Location
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Financial sub-scores
Computed from 5 filingsProvides outsourced payroll bureau services for businesses, including payroll processing, payslip production, RTI submissions to HMRC, workplace pension auto‑enrolment administration, handling PAYE…
Serves UK businesses, from single-director companies to employers with up to 1,000 staff, including local clients in Manchester, Stockport, Macclesfield, Alderley Edge, Wilmslow and Cheshire.
Financial Health
HealthyHealthy · 0% CAGR over 4y
Location
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Financial sub-scores
Computed from 4 filingsProvides accountancy and taxation services including bookkeeping, VAT and payroll, personal and corporation tax, management accounts, capital gains and inheritance tax planning, and business advisory…
Serves UK-based individuals, business owners and companies, including clients starting, buying or selling businesses and those in agriculture and rural sectors.
Financial Health
StableStable · -5% CAGR over 3y
Location
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Develops a mortgage technology platform used by loan officers and brokerages to originate and manage home loans. Provides loan origination software, lender network access, compliance infrastructure,…
Serves independent loan officers, mortgage brokerages and teams, plus businesses adding mortgage services, from solo operators to enterprise white-label partners in the US mortgage market.
Financial Health
N/AN/A
Location
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Financial sub-scores
Computed from 5 filingsProvides accounting and tax advisory services to individuals, businesses and organisations. Handles self‑assessment tax returns, bookkeeping, company accounts, VAT and corporation tax, tax refunds…
Serves individuals, private clients, subcontractors, companies and organisations in South London needing accounting and tax support, including those with complex tax affairs, HMRC enquiries or…
Financial Health
HealthyHealthy · -14% CAGR over 4y
Location
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Financial sub-scores
Computed from 5 filingsActs as an insurance broker and Lloyd’s agent arranging personal and commercial insurance policies. Provides advice, policy placement with insurers and Lloyd’s syndicates, and claims handling,…
Serves both businesses and individuals. Targets commercial clients from sole traders to PLCs, including licensed premises, retailers, building and allied trades, as well as personal policyholders…
Financial Health
DistressedDistressed · 8% CAGR over 5y
Location
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How Plaid usage is detected
Company data
Detected companies are joined to UK Companies House records and XBRL accounts data. Revenue and headcount figures come from the most recent filed accounts; where the company has not filed, values are estimated using a model trained on filed history and peer benchmarks and are labelled as estimates.
Detection
Firmbase crawls the public website of actively-trading UK companies and fingerprints the technologies present: tracking scripts, embedded forms, chat widgets, CMS markers and similar signatures. A company is included in this list when one or more of the technology's signatures are found on its site; closely-related variants of the same product are grouped under one name. Detection covers what is visible on the public web — a company using the technology purely internally, with no website footprint, will not appear. Counts are therefore a conservative floor, not a ceiling. B2B companies are identified using Firmbase's semantic classification of company activity, built from filings, websites and registered SIC codes rather than SIC codes alone. The detected counts and share figures on this page are computed within that sector cohort, so "share" always means share of B2B companies with a detectable system — not of all UK companies.
Freshness
Websites are re-crawled on a rolling basis and the underlying company data is refreshed from Companies House continuously; filings appear within days of submission. The list and its statistics are regenerated when the detected cohort moves meaningfully. You can see the last-updated timestamp near the top of the page.
Plaid is a trademark of its respective owner. Firmbase is not affiliated with, sponsored by, or endorsed by the trademark owner.
UK B2B by Payments
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Frequently asked questions
How many UK B2B companies use Plaid?
What share of UK B2B companies run Plaid?
How is Plaid usage detected?
What size B2B companies use Plaid in the UK?
What do Plaid-running B2B companies also run?
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