ATH21

What ATH21 does

ATH21 (legal entity ATH, S.L.P.) is a Valencia-headquartered Spanish legal boutique and the first full-service law firm in Spain exclusively specialized in digital assets, blockchain, and FinTech. Its core offering spans five service lines: Legal (regulatory, compliance, intellectual property, financial sandbox), Tax (corporate and individual tax advisory, cryptoasset taxation, expat taxation, transfer pricing, international tax), Accounting (bookkeeping, annual accounts, cryptoasset-specialized accounting), Labor (payroll, Social Security, employee management), and Corporate and Venture Capital (financing rounds, M&A, partner agreements, incentive plans). The firm employs a 'Legal by Design' methodology that emphasizes proactive regulatory strategy, codified in its registered trademark, and supported by an active content engine including a bilingual blog, downloadable regulatory guides, a YouTube channel, and a newsletter.

The firm serves three primary client segments: blockchain and digital asset companies (e.g., advising crypto exchanges Whitebit and Atani on Bank of Spain registration as cryptoasset service providers and leading the first utility token issued in Spain under MiCA); technology startups (financing rounds, M&A, and corporate structuring for clients such as Aunoa, Privado.ID, Depasify, Civitfun, and Coderland); and expats and non-residents with cryptoasset holdings requiring Spanish tax advisory. Notable enterprise relationships include legal advisory to PcComponentes' Venture Builder and to Izertis on its 50% acquisition of Coderland.

ATH21 generates revenue through professional services billed under fee proposals ('propuesta de honorarios') tied to scope, time, and complexity, with no publicly disclosed rate card. The team of approximately 10 includes senior lawyers with prior experience at Cuatrecasas, Pinsent Masons, Garrigues, and Arttax&Legal, plus tax, accounting, treasury, and marketing functions. The firm is privately held with no disclosed external investors, founded in 2021 (with the founding team's involvement in blockchain and cryptoasset projects since 2010), and operates from a single office in Valencia, Spain, while serving clients with cross-border operations.

Name

ATH21

Legal name

ATH, S.L.P.

Website

https://ath21.com

Company type

Private

Founded year

2010

Operating status

Operating

Headcount range

1–10 employees

Short description

ATH21 is a Valencia, Spain-based legal boutique (ATH, S.L.P.) and the first Spanish law firm exclusively specialized in digital assets and FinTech. With approximately 10 team members, it provides legal, tax, corporate, and compliance advisory to crypto exchanges, blockchain startups, and tech companies in Spain and internationally.

Ownership category

akta.pro rank

Product category

Legal Services (Crypto and Blockchain Law)

NAICS

Finance and Insurance (52)

akta.pro primary industry

Risk Management, Controls, Governance & Policy (Crypto) (FSADALAJ)

akta.pro secondary industry

DAO Treasury, Governance & On-Chain Finance Tools (FSADAMAL)

Keywords

• Cryptoasset legal advisory
• Blockchain regulatory compliance
• Digital assets taxation
• Venture capital law
• Fintech legal services

Headquarters

HQ city

Valencia

HQ country

Spain

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Professional Legal Services: ATH21 provides professional legal services including regulatory compliance, corporate law, venture capital advisory, and tax services to clients in the digital assets and blockchain space. Services are offered through fee proposals (propuesta de honorarios) and billed based on time and complexity of work. The firm maintains client relationships for ongoing legal support and compliance needs.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels7 records

Core offering

ATH21 is a Spanish full-service law firm (legal boutique) that provides specialized legal, tax, accounting, and corporate advisory services exclusively to companies in the blockchain, cryptoasset, and FinTech sectors. Core offerings cover regulatory compliance and licensing (MiCA, Bank of Spain, CNMV), corporate and venture capital transactions (financing rounds, M&A), tax advisory including crypto taxation and expat services, accounting, labor law, and intellectual property.

Product overview

ATH21 is a full-service Spanish law firm specializing in crypto and blockchain, providing integrated legal, tax, and corporate services. The firm operates as a legal boutique offering Regulatory/Compliance services, Tax Advisory (corporate and individual), Accounting, Labor services, and Corporate/Venture Capital advisory. The core offering consists of specialized legal services for digital assets and blockchain technology combined with tax, accounting, and corporate support. Supplementary offerings include downloadable regulatory guides and newsletters, plus career opportunities for professionals interested in the crypto space.

Differentiator

Problem solved

Functional benefit

Products and services

• Legal Advisory Services
• Regulatory and Compliance Services
• Corporate and Venture Capital Services
• Tax Advisory Services
• Accounting Services
• Labor Services
• Intellectual Property Services

Quantifiable outcome

• ATH21 has led multiple high-value client transactions including the first utility token issued in Spain under MiCA regulation, and advised on the acquisition of Civitfun by HBX Group and Izertis-Coderland acquisition.

Named customers8 records

Segments4 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature1 record

Scale indicators3 records

Recent moves6 records

Expansion highlights6 records

Broad incumbents

• CMS (FinTech): Global law firm with a dedicated FinTech and digital assets practice serving banks, payment firms, and crypto businesses across Europe. Comparable regulatory and corporate advisory for digital asset clients; competes for the same enterprise mandates as ATH21.
• Cuatrecasas: Major Iberian law firm with FinTech, capital markets and corporate practices. ATH21 CEO Cris Carrascosa previously practiced at Cuatrecasas. Competes for the same enterprise-grade regulatory and corporate mandates, though at much larger scale and broader industry footprint.
• Garrigues: Largest Iberian law firm, with FinTech, banking regulation and corporate practices. ATH21 Corporate Director José María Vidal is a former Garrigues lawyer, making it a direct talent and capability comparable. Provides overlap in regulatory and VC/M&A legal advisory for digital businesses.
• Uría Menéndez: Leading Spanish/Portuguese law firm with a TMT, FinTech, and regulatory practice advising major corporates and financial institutions. Closely comparable on regulatory-side advisory for digital asset and FinTech clients; broader and deeper practice than ATH21's boutique offering.
• Pérez-Llorca: Major Spanish full-service law firm with a recognized FinTech and digital regulation practice serving corporates and financial institutions. Comparable to ATH21 in Spanish legal advisory scope and crypto/regulatory exposure but operates at significantly greater scale.
• Reed Smith (Digital Assets & FinTech): International law firm with a focused FinTech and digital assets practice representing exchanges, custodians, and token issuers. Comparable on regulatory, licensing, and cross-border transactional work for crypto/digital asset clients.
• Deloitte (Digital Assets/Crypto): Big Four firm with a global digital assets practice covering regulatory, tax, accounting and risk advisory for exchanges, custodians, and token issuers. Comparable regulatory compliance and crypto-tax advisory capabilities to ATH21.
• KPMG Digital Assets: Big Four advisory practice with dedicated digital assets teams offering tax, regulatory, accounting and risk services. Ath21's tax and accounting practice for crypto clients overlaps directly with KPMG's crypto tax and compliance advisory.

Direct peers

• XReg Consulting: UK-based boutique regulatory consultancy specialized in blockchain, cryptoassets, and digital finance. Most direct international comparable to ATH21 — focused exclusively on crypto regulation and compliance — though headquartered in London rather than Spain.
• DLxLaw (Cypher): US-based digital assets law practice focused on advising crypto companies on regulatory, licensing, and corporate matters. Closest pure-play peer to ATH21 in terms of boutique positioning and exclusive focus on crypto/digital assets legal advisory.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• Xx.com/ATH21legal
• YouTubeyoutube.com/@ATH21-Legalbydesign
• LinkedInlinkedin.com/company/ath21

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

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 ATH21