What ARKK Consultants Inc. does

ARKK Consulting Limited (UK Company number 06957576) is a UK-based regtech company founded in 2008 that provides AI-powered tax automation, regulatory reporting, and digital tagging solutions primarily to FTSE-listed companies and large multinational enterprises. The company operates three core product lines: the ARKK Automation Platform (handling VAT MTD, Pillar Two GloBE, QDMTT, CESOP, CbCR, FATCA, CARF, PSA, and other tax workflows), the Regulatory Reporting Portal (covering AIFMD, CRD IV, DORA, Solvency II, Pillar 3, CBI XBRL, Bank of England, and other banking/insurance taxonomies), and a Digital Tagging Service for iXBRL, ESEF, ESG, GRI, KVK, Swiss TCFD, and Lloyd's of London reporting. The platform is built on Microsoft Azure, integrates Power BI for embedded dashboards, and applies machine learning for consistency checking across data ingested from any source format.

The technology supports over 40 jurisdictions and applies more than two million tags to over 6,000 documents annually, addressing XBRL, iXBRL, and ESEF digital reporting mandates for organizations facing complex, evolving regulatory requirements. ARKK's business model combines recurring SaaS subscriptions for its automation platform and regulatory reporting portal with professional services revenue from fully managed tagging engagements. Pricing is not publicly disclosed; the company uses a consultative, expert-led direct sales motion targeting CFOs, heads of tax, and compliance leaders at enterprises with over 250 employees and revenues exceeding £500 million, supplemented by content marketing, webinars, conferences, and partner co-marketing with firms such as BDO and ESG360°.

With over 1,000 customers including 65% of FTSE companies and named logos spanning BlackRock, Legal & General, eToro, DPD, Datatec, and MGroup, ARKK operates primarily across the UK and EMEA with a stated global footprint. The company has been backed by Gresham House Ventures since 2019, with a £4.5 million follow-on investment in January 2026 funding product roadmap expansion and sales and marketing scaling. ARKK holds ISO 27001 certification since 2016 across its London and Belfast operations and is led by CEO Jenny Himsley, with Laurence Kiddle having previously held the CEO role from January 2022.

Name

ARKK Consultants Inc.

Legal name

Arkk Consulting Limited

Website

https://arkk.com

Company type

Private

Founded year

2008

Operating status

Operating

Headcount range

101–250 employees

Short description

ARKK Consulting Limited is a UK regtech company providing AI-powered tax automation, regulatory reporting, and digital tagging solutions to over 1,000 enterprise customers across 40+ jurisdictions, including 65% of FTSE companies. Its cloud platform handles XBRL/iXBRL, Pillar Two, and ESG reporting compliance.

Ownership category

akta.pro rank

Product category

Regulatory Technology (RegTech) Software

NAICS

Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (51821), Custom Computer Programming Services (541511)

SIC

Services-Computer Programming, Data Processing, Etc. (7370), Services-Prepackaged Software (7372)

akta.pro primary industry

Regulatory Reporting & Submissions Automation (FSAFAOAA)

akta.pro secondary industries

Intelligent Document Processing (IDP) & OCR Automation (HDAEAHAC), Policy Administration, Underwriting & Rating Platforms (Core Insurance SaaS) (FSAGAGAB)

Keywords

• Tax automation software
• Regulatory reporting solutions
• XBRL digital tagging
• ESEF iXBRL filing
• Pillar Two compliance

Headquarters

HQ city

London

HQ country

United Kingdom

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Software

Cost components

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

Revenue model

1. Software-as-a-Service (SaaS) Subscriptions: ARKK generates revenue primarily through subscription-based SaaS licensing of its automation platform, regulatory reporting portal, and digital tagging services. Customers access the platform on a subscription basis, likely with tiered plans based on usage, entity count, or module access. The model includes ongoing support, updates, and access to new regulatory taxonomies.
2. Fully Managed Tagging Services: ARKK offers fully managed end-to-end tagging services for iXBRL, ESEF, ESG, and KVK filings, where the ARKK team handles the entire process including data identification, collection, conversion, tagging, review, and final submission. This professional services component complements the software platform.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels6 records

Core offering

ARKK Consultants Inc. provides an AI-powered cloud-based SaaS platform for tax automation, regulatory reporting, and digital tagging (XBRL/iXBRL) to large enterprises and FTSE-listed companies. The platform ingests data in any format from any source, automates calculations and workflows for tax compliance (VAT MTD, Pillar Two, CESOP, CbCR, FATCA, CARF, etc.), supports regulatory reporting across banking and insurance taxonomies (AIFMD, CRD IV, DORA, Solvency II, Pillar 3), and delivers expert digital tagging services for ESEF, ESG, iXBRL, and KVK filings across 40+ jurisdictions.

Product overview

ARKK offers three core product lines: the ARKK Automation Platform (tax automation), Regulatory Reporting Portal, and Digital Tagging Service. The Automation Platform is a source-agnostic data aggregator that handles multiple tax workflows including VAT MTD, Pillar Two, CESOP, CbCR, FATCA, and CARF. The Regulatory Reporting Portal covers banking and insurance taxonomies (AIFMD, CRD IV, DORA, Solvency II, Pillar 3). The Digital Tagging Service provides expert tagging for ESEF, ESG (ISSB/SECR/ESRS), GRI, iXBRL, and KVK. The company also offers a Fully Managed Service for end-to-end submission support. Over 1,000 customers trust ARKK across 40+ jurisdictions, including 65% of FTSE companies.

Differentiator

Problem solved

Functional benefit

Products and services

• ARKK Automation Platform A unified tax automation platform that ingests data in any format from any source, automates calculations, and streamlines workflows for tax compliance including VAT MTD, Pillar Two, OTP, QDMTT, CESOP, CbCR, FATCA, CARF, BBSI, PSA, ISA, CIS, IPT, and MMIF, designed for CFOs, Heads of Tax, and compliance teams at large enterprises.
• Regulatory Reporting Portal A comprehensive regulatory reporting solution covering multiple taxonomies including AIFMD, Bank of England, CBI XBRL, CRD IV, DORA, Form PF, IFR/IFD, Instant Payments, ECB Payment Statistics, Payments to Governments, Solvency II, Pillar 3 data hub, and AML REQ, for banking, insurance, and asset management firms.
• Digital Tagging Service Expert digital tagging services for ESEF, ESG (ISSB, SECR, ESRS), GRI, iXBRL, Companies House, KVK, Swiss TCFD, and Lloyd's of London reporting, applying over two million tags to more than 6,000 documents annually with precision and compliance for large enterprises and FTSE-listed companies.
• Fully Managed Service End-to-end managed service including data identification, collection, conversion, tagging, review, and filing for regulatory submissions across multiple jurisdictions, where the ARKK team handles the entire submission process for clients.

Quantifiable outcome

• 80% reduction in processing times achieved
• +5 more outcomes

Named customers6 records

Segments1 record

Ideal customer profiles1 record

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability5 records

Feature5 records

Partnerships

Three partnerships are on record, tiered key and supporting.

• ESG360ºkeyStrategic or Co-development Partner · 3 April 2025ESG360º, a leading enterprise SaaS platform specializing in ESG strategy and reporting, partnered with ARKK to provide comprehensive ESG compliance solutions. The partnership combines ESG360º's ESG strategy and reporting expertise with ARKK's digital tagging technology to help businesses meet stringent ESG disclosure requirements including IFRS S1 & S2 standards. The partnership targets CFOs, Heads of ESG, and compliance teams at large corporations.
• BDOkeyStrategic or Co-development PartnerARKK partnered with BDO, a leading accounting and advisory firm, to co-host a webinar on OECD Pillar Two Side-by-Side rules and practical steps for implementation. The collaboration brings together BDO's tax advisory expertise with ARKK's Pillar Two technology platform, allowing technology and expertise to operate together for multinational groups preparing for Pillar Two compliance.
• CorporatingssupportingTechnology or IntegrationARKK partnered with Corporatings to provide comprehensive ESEF compliance solutions with internal controls. Corporatings provides automatic data quality checks, one-click benchmarking, and Excel export functionality that complements ARKK's digital tagging services, enabling clients to comply with FRC Provision 29 requirements for internal control over financial reporting.

Scale indicators8 records

Recent moves6 records

Expansion highlights6 records

Broad incumbents

• IRIS Software Group: IRIS Software is a major UK provider of tax, accounting, and HR/payroll software serving accountancy practices and corporates. It competes with ARKK in tax compliance and iXBRL for the UK mid-market and practice channel.
• Wolters Kluwer Tax & Accounting: Wolters Kluwer offers a broad suite of tax, accounting, and regulatory compliance software including CCH, Twinfield, and OneSumX. It competes with ARKK across tax automation and regulatory reporting as part of a much larger enterprise portfolio.
• Thomson Reuters (Tax & Accounting): Thomson Reuters' ONESOURCE and Checkpoint platforms cover corporate tax, trade, and regulatory reporting. It is a broad incumbent competitor, and notably where ARKK's prior CEO Laurence Kiddle held senior leadership roles.

Direct peers

• Workiva: Workiva is the leading cloud platform for XBRL/iXBRL reporting, ESG/ESRS disclosure, and regulatory submissions to the SEC, ESMA, and other bodies. It directly competes with ARKK in digital tagging and ESG reporting for large enterprise and SEC/FTSE issuers.
• Vertex Inc. Vertex provides enterprise tax technology including indirect tax determination, compliance, and reporting solutions. It overlaps with ARKK's tax automation modules (VAT, Pillar Two, CbCR) for multinational corporations.
• SOVOS: SOVOS provides global tax compliance and regulatory reporting software including VAT MTD, e-invoicing, and indirect tax determination. It is a direct competitor to ARKK in multi-jurisdiction tax automation for large enterprises.
• Digita Group: Digita is a UK tax and accounting software vendor offering MTD, corporation tax, and iXBRL solutions. It is a comparable UK-focused direct competitor serving similar enterprise and practice markets.
• Tax Systems: Tax Systems is a UK-based provider of corporation tax, PSA, and iXBRL compliance software for large enterprises and accountancy firms. It directly competes with ARKK in UK tax automation and iXBRL tagging for HMRC submissions.
• Toppan Digital (Toppan Merrill / EDGAR Online): Toppan Digital provides XBRL/iXBRL filing, EDGAR filing agent, and ESG reporting services. It directly competes with ARKK in digital tagging and regulatory submission services, particularly for SEC and international disclosures.

Emerging players

• Fiscal Technologies: Fiscal Technologies provides accounts payable compliance and tax risk software for large enterprises. It is an adjacent UK-based emerging player with partial overlap in financial compliance automation.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/arkksolutions

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 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 ARKK Consultants Inc.