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Adsum logo — Fintech innovator providing OpenTax for Accountants & Bookke...

Adsum

Fintech innovator providing OpenTax for Accountants & Bookkeepers and InstantVAT refunds for businesses

Founded 2019 United Kingdom London, United Kingdom 26 employees Seed Total: $15.00M Financial Services, Fintech

General Information

Company Name Adsum
Founded Year 2019
Location United Kingdom London, United Kingdom
Employees 26
Industries Financial Services, Fintech
Funding Stage Seed
Social

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About Adsum

Adsum, founded in 2019, is a burgeoning player in the Fintech and Financial Services industries, headquartered in the United Kingdom. The company distinguishes itself with a focus on tax infrastructure innovation through its flagship offerings: InstantVAT Technology, OpenTax, and PropertyVAT powered by Adsum.

Their InstantVAT Technology provides businesses with swift VAT refunds in as little as 24 hours, a significant improvement over traditional HMRC timelines. For accountants, OpenTax delivers real-time client tax payment insights, streamlining their operational processes. Additionally, PropertyVAT aids real estate developers by reducing equity requirements to enhance ROI.

In its latest financial milestone, Adsum secured a $5.00M Seed Round investment on 23 May 2022. Esteemed investors including Episode 1 Ventures, D2 Investments, Kinled Holding Ltd, and Launchbay Capital participated, underscoring the company's potential and trusted vision in transforming tax processes.

Business keywords: Tax Infrastructure, Instant VAT Refunds, OpenTax, Accountancy Solutions, Real-time Tax Insights, Property VAT, Real Estate Tax Solutions, Tax Credits, Tax Technology, R&D Tax Credits, Creative Industry Tax Credits, VAT Advances, Business Tax Solutions, Financial Technology

Services & Products

Tax Management Automation
HMRC Data Synchronization
Deadline Tracking and Alerts
Automated Client Notifications
Real-time Data Dashboards
Client and Team Collaboration Tools
Tax Connection Management

Target Customers

Accounting Practices Tax Advisors Bookkeeping Professionals Accountants

Funding Rounds & Investors (2)

View All
Funding Stage Amount Investors Lead Investors Date
Seed Round $5.00M 4
Episode 1 Ventures D2 Investments Kinled Holding Ltd
Episode 1 Ventures, D2 Investments +2
23 May 2022
Debt Financing £10.00M -
02 May 2022

Adsum Alternatives & Competitors

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Adsum vs
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Adsum vs
Pennylane
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Also compare with: Adsum vs Keeyns Keeyns View all alternatives

FAQ About Adsum

Fintech innovator providing OpenTax for Accountants & Bookkeepers and InstantVAT refunds for businesses
Adsum was founded in 2019.
Adsum is headquartered in London, United Kingdom.
Adsum operates in Financial Services and Fintech. Its work centres on Tax Infrastructure, Instant VAT Refunds, OpenTax and Accountancy Solutions. Its customers include Accounting Practices, Tax Advisors and Bookkeeping Professionals.
Adsum has approximately 26 employees.
Adsum has completed 2 funding rounds, raising a total of $15.00M. The latest funding stage is Seed.
Adsum offers: Tax Management Automation, HMRC Data Synchronization, Deadline Tracking and Alerts, Automated Client Notifications, Real-time Data Dashboards, Client and Team Collaboration Tools, Tax Connection Management.
Top alternatives and competitors to Adsum include Fonoa, Silverfin, Pennylane, Keeyns, Regate by Qonto. These companies operate in related industries and serve comparable markets. You can compare them side by side on Bounce Watch.
Adsum and Fonoa are both companies in similar industries. Compare their funding, team size, growth signals, and market position on Bounce Watch to see which one fits your needs.

Source: BounceWatch company record for Adsum, https://bouncewatch.com/company/adsum, updated 10 November 2025. When citing, please name BounceWatch and link this page.

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