Insights

Scaling with AI Adsum offers AI-driven automation for core accounting workflows in UK practices, enabling firms to scale operations without additional headcount. This presents a sales opportunity to target growing practices seeking efficiency gains and headcount relief.

cross-entity Consistency OpenTax provides a unified methodology across entities, automating data validation, checks, reconciliations, and period-end close. Target multi-entity practices and firms with complex portfolios that would benefit from standardized, automated close processes.

Technology Stack Fit The platform already integrates with widely used tools and platforms (AWS, Google Workspace, HubSpot, Trustpilot, Shopify, etc.). This reduces integration risk and can be pitched to firms with similar tech ecosystems or cloud-first modernization agendas.

Financial Services Focus Adsum operates in the financial services and tax-forward financing niche, evidenced by VAT facility capabilities and instant VAT refund announcements. There is a cross-sell opportunity with clients who may need working capital solutions alongside automation tooling.

Market Validation With revenue in the low-to-mid single digits and a total funding of around $17M, Adsum has demonstrated traction and investor confidence. This supports outreach to mid-size UK accounting practices seeking proven, well-funded technology partners.

Similar companies to Adsum

Adsum Tech Stack

Adsum uses 8 technology products and services including Hotjar, Linkedin Insight Tag, Amazon Web Services, and more. Explore Adsum's tech stack below.

Adsum's Email Address Formats

Adsum uses at least 1 email format:
Adsum Email FormatsExamplePercentage
First.Last@adsum-works.comJohn.Doe@adsum-works.com
100%

Frequently Asked Questions

What is Adsum's official website and social media links?

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Adsum's official website is adsum-works.com and has social profiles on LinkedIn.

How much revenue does Adsum generate?

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As of October 2026, Adsum's annual revenue is estimated to be $1M - $10M.

What is Adsum's NAICS code?

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Adsum's NAICS code is 52 - Finance and Insurance.

How many employees does Adsum have currently?

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As of October 2026, Adsum has approximately 28 employees across 4 continents, including Europe, Asia and Africa. Key team members include Cto: B. R., Head Of Product: A. V. and Business Development Manager: D. S. Explore Adsum's employee directory with LeadIQ.

What industry does Adsum belong to?

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Adsum operates in the Financial Services industry.

What technology does Adsum use?

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Adsum's tech stack includes Hotjar, Linkedin Insight Tag, Amazon Web Services, CookieYes, HubSpot Cookie Policy Banner, Shopify, Google Workspace and Trustpilot.

What is Adsum's email format?

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Adsum's email format typically follows the pattern of First.Last@adsum-works.com. Find more Adsum email formats with LeadIQ.

How much funding has Adsum raised to date?

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As of October 2026, Adsum has raised $17M in funding. The last funding round occurred on May 23, 2022.

When was Adsum founded?

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Adsum was founded in 2019.
Adsum logo

Adsum

Financial ServicesEngland, United Kingdom11-50 Employees

Adsum is a financial services company headquartered in London, United Kingdom, located at 1 Lyric Square, London, England W6 0NB, and it employs 11-50 people. It develops AI agents that run core accounting workflows for UK practices. Its OpenTax product serves as an orchestration layer across existing technology stacks, automating data validation, input checks, reconciliations, and period-end close while providing a consistent methodology across entities. Adsum serves accounting firms of all sizes across the UK, helping them scale without adding headcount, and its technology is trusted by more than 1,000 practices. Recent news coverage indicates financing activity and VAT facility-related initiatives, as well as product developments such as the Instant VAT Refund service.

Section iconCompany Overview

NAICS Code
52 - Finance and Insurance
Founded
2019
Employees
11-50

Section iconFunding & Financials

  • $17M

    Adsum has raised a total of $17M of funding over 2 rounds. Their latest funding round was raised on May 23, 2022 as a Seed.

  • $1M - $10M

    Adsum's revenue is estimated to be in the range of $1M - $10M

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