Dannemann Siemsen
- Company typePrivate
- Founded1900
- HeadquartersRio De Janeiro, Brazil
- Headcount501–1,000
- GTM typeB2B
- OfferingServices
Dannemann Siemsen firmographics
Firmographics- Name
- Dannemann Siemsen
- Legal name
- Dannemann, Siemsen, Bigler & Ipanema Moreira
- Website
- https://dannemann.com.br
- Company type
- Private
- Founded year
- 1900
- Operating status
- Operating
- Headcount range
- 501–1,000 employees
- Ownership category
- akta.pro rank
Dannemann Siemsen industry classification
Industry- Product category
- Intellectual Property Law Services
- NAICS
- Offices of Lawyers (541110), Legal Services (5411), All Other Legal Services (541199)
- SIC
- Services-Legal Services (8111)
- akta.pro primary industry
- Standards-Essential Patents (SEP) & FRAND Advisory (BPAHAMAL)
Keywords
Where Dannemann Siemsen is headquartered
LocationHeadquarters
- HQ city
- Rio De Janeiro
- HQ country
- Brazil
- HQ region
- Latin America
Offices4 records
Markets served
Dannemann Siemsen business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Marketing or Sales, Others, Infrastructure
Revenue model
- Legal Advisory Services: Professional legal services in intellectual property including patents, trademarks, copyrights, trade secrets, industrial designs, and geographical indications. Services include advisory, prosecution, litigation, and transactional work.
- Litigation Services: Civil, criminal, and administrative litigation services in IP and related areas, including arbitration and mediation proceedings
- Contract Services: Drafting, analysis and negotiation of commercial agreements, franchises, IP licensing agreements, technology transfer agreements, and technical assistance agreements
Go-to-market motion2 records
Distribution channels3 records
Marketing channels6 records
Dannemann Siemsen product offering
Product offeringCore offering
Dannemann Siemsen is a Brazilian law firm that provides intellectual property and related legal services, including patent and trademark prosecution, IP litigation, arbitration and mediation, copyright, industrial design, trade secret, geographical indication and entertainment law. The firm also delivers ancillary legal services in privacy and data protection (LGPD/GDPR), blockchain and smart contracts, franchising, regulatory, tax, advertising, corporate and consumer law. Its client base spans multinational and domestic enterprises across multiple industry verticals in Brazil and Latin America.
Product overview
Dannemann Siemsen is a Brazilian law firm dedicated to Intellectual Property since 1900, operating as a single integrated legal practice offering comprehensive services across six main pillars: Intellectual Property (patents, trademarks, copyrights, industrial designs, geographical indications, trade secrets, entertainment), Litigation (arbitration, civil/business, criminal, IP litigation, judicial reorganization, mediation), Consumer Relations (administrative litigation, advisory, business prevention, judicial litigation), Contracts (commercial agreements, franchises, IP agreements), Law and Technology (blockchain/smart contracts, privacy/data protection, software), and Other areas (advertising, compliance, corporate law, IP asset evaluation, regulatory, tax). The firm serves clients across multiple industry segments including biotechnology, chemicals, entertainment, fashion, ICT, and ESG, with 4 offices in Brazil and 1 hub in Uruguay. The portfolio includes specialized sub-initiatives such as the DS Diversity Program and DS Women initiative, alongside the Dannemann Siemsen Institute (IDS) for academic outreach.
Differentiator
Problem solved
Functional benefit
Brands
- DS 360°: News, articles and projects platform featuring firm updates, legal insights, and ESG initiatives
- DS Diversity Program
- DS Women / DS Elas
- ESG Centre
- IP Eagle Talents Selection and Training Program
Products and services
- Patent Services
- Trademark Services
- IP Litigation
- Copyright Services
- Industrial Design Protection
- Geographical Indications
- Trade Secrets Protection
- Entertainment Law
- Arbitration and Mediation
- Privacy and Data Protection
- Blockchain and Smart Contracts
- Software Registration and Licensing
- IP Agreements
- Franchise Services
- Consumer Relations
- Regulatory Law
- Criminal IP Enforcement
- Corporate Law
- Evaluation of Intellectual Assets
- Compliance and Internal Investigations
- Advertising Law
- Tax Law
- Dannemann Siemsen Institute (IDS)
Quantifiable outcome
- Chambers & Partners Global 2026 ranked as leader in IP: Patents, Trademarks, Copyright and Trade Secrets in Brazil
- +3 more outcomes
Companies that use Dannemann Siemsen
Customer profileNamed customers3 records
Segments11 records
Ideal customer profiles4 records
Dannemann Siemsen technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature3 records
Dannemann Siemsen partnerships and signals
Strategic signalPartnerships
Three partnerships are on record, tiered core and minor.
- Moraes & Savaget AdvogadoscoreStrategic partnership combining Dannemann Siemsen's litigating expertise with the specialized crisis management knowledge of Moraes & Savaget for judicial and extrajudicial reorganization matters.
- ANGARDI - National Association for the Guarantee of Intellectual RightsminorCollaboration on training courses for public authorities in Federal, State and Municipal spheres to increase the quantity and quality of actions taken by surveillance and repression bodies in IP protection.
- International Associate NetworkcoreExtensive network of associates in more than 150 countries in the main global markets for international trademark and patent services, enabling effective international assistance at optimized costs.
Scale indicators6 records
Recent moves2 records
Expansion highlights6 records
Dannemann Siemsen competitors and assessment
Company assessmentDirect peers
- Kasznar Leonardos: Brazilian intellectual property law firm founded in 1923, also recognized as one of the leading IP boutiques in Brazil and Latin America. Directly comparable to Dannemann Siemsen as a heritage Brazilian IP specialist serving similar patent, trademark, and litigation mandates.
- Momsen, Leonardos & Cia. Brazilian intellectual property law firm with deep patent and trademark prosecution expertise across multiple technical disciplines. Directly comparable to Dannemann Siemsen as a top-tier IP specialist serving multinational clients in Brazil.
- ClarkeModet: Largest pure-play IP services firm in Latin America and Iberia, with patent and trademark prosecution across 10+ countries. Directly comparable to Dannemann Siemsen in cross-border IP prosecution, especially as a regional competitor for Latin America-focused IP mandates.
Broad incumbents
- Mattos Filho: One of the largest full-service Brazilian law firms with a recognized IP practice among its broader corporate, regulatory, and litigation offerings. Comparable to Dannemann Siemsen as a top Brazilian firm competing for IP mandates, though not IP-specialized.
- Pinheiro Neto: Premier Brazilian full-service law firm with a strong IP and technology practice serving major multinationals. Comparable as a top-tier Brazil-based competitor for IP advisory work, though broader in scope than Dannemann Siemsen's IP-only focus.
- Demarest Advogados: Large Brazilian full-service firm with a credible IP, technology, and data protection practice. Comparable to Dannemann Siemsen as a competitor for cross-disciplinary IP and technology mandates from enterprise clients in Brazil.
- Bird & Bird: Global law firm widely recognized as a leading IP and technology practice, with a growing presence in Brazil. Comparable to Dannemann Siemsen as an international competitor for high-value IP mandates involving Brazil-based multinationals.
- Hogan Lovells: Global law firm with a top-tier IP practice and a substantial Brazil office. Comparable as an international incumbent competing with Dannemann Siemsen for global IP portfolios with material Brazil exposure, particularly in life sciences and tech.
- Baker McKenzie: Global law firm with a leading IP practice and one of the largest Brazil operations of any international firm. Comparable to Dannemann Siemsen as a competitor for cross-border trademark portfolio management and IP litigation involving Brazilian entities.
Regional players
- Garrigues: Leading Iberian (Spain/Portugal) and Latin America law firm with a strong IP practice headquartered in Spain. Comparable to Dannemann Siemsen as a regional competitor for Latin America and Lusophone IP mandates, though primarily operating from a different home jurisdiction.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key risks5 records
Key highlights7 records
Customer concentration
Dannemann Siemsen social profiles
Digital presenceDannemann Siemsen compliance and trust
Trust signalCompliance6 records
Dannemann Siemsen financial estimates
Financial estimateRevenue estimate
Valuation estimate
Dannemann Siemsen leadership team
Management profileNumber of profiles
Profiles12 records
Dannemann Siemsen subsidiaries and ownership
Company hierarchySubsidiaries1 record
Dannemann Siemsen funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Dannemann Siemsen M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Dannemann Siemsen
What does Dannemann Siemsen do?
Dannemann Siemsen is a Brazilian law firm that provides intellectual property and related legal services, including patent and trademark prosecution, IP litigation, arbitration and mediation, copyright, industrial design, trade secret, geographical indication and entertainment law. The firm also delivers ancillary legal services in privacy and data protection (LGPD/GDPR), blockchain and smart contracts, franchising, regulatory, tax, advertising, corporate and consumer law. Its client base spans multinational and domestic enterprises across multiple industry verticals in Brazil and Latin America.
Is Dannemann Siemsen a public or private company?
Dannemann Siemsen is a private company. It is classified as management employee owned and is currently operating.
When was Dannemann Siemsen founded?
Dannemann Siemsen was founded in 1900. It employs 501 to 1,000 people.
Where is Dannemann Siemsen based?
Dannemann Siemsen is headquartered in Rio De Janeiro, Brazil, in the Latin America region.
How does Dannemann Siemsen make money?
Three revenue lines are on record. Legal Advisory Services are the primary driver. The others are litigation Services and contract Services.
Who are Dannemann Siemsen's main competitors?
Direct peers on record are Kasznar Leonardos, Momsen, Leonardos & Cia. and ClarkeModet. Broad incumbents are Mattos Filho, Pinheiro Neto, Demarest Advogados, Bird & Bird, Hogan Lovells and Baker McKenzie. Garrigues is listed as a regional player.
Does Dannemann Siemsen have an API?
No public API is recorded for Dannemann Siemsen.
What industry is Dannemann Siemsen in?
Dannemann Siemsen's product category is Intellectual Property Law Services. Its primary akta.pro industry code is BPAHAMAL, Standards-Essential Patents (SEP) & FRAND Advisory. Its NAICS code is 541110 and its SIC code is 8111.