MGO
U.S. CPA and advisory firm providing enterprise tax, international tax, state and local tax, credits, assurance and consulting services.
mgocpa.comMGO was founded in 1987 and serves public and private companies, entrepreneurs, government organizations and high-net-worth clients. It maintains a U.S. platform supported by international delivery capabilities, including MGO India.
The firm’s tax services cover enterprise business tax, closely held companies, international tax, state and local tax, tax controversy and credits and incentives. Transaction, valuation, technical accounting and management-consulting services broaden its support around business change.
Principal activities
Tax planning, structuring, compliance coordination and support for corporate tax departments.
Cross-border planning, transaction support, transfer pricing and ownership-structure analysis.
Tax accounting, provision support, credits, incentives, indirect tax and technology-enabled processes.
- Typical clients: Corporations, private businesses, investment firms, in-house tax departments, finance leaders and professional advisers.
- Engagement context: Corporate tax planning, cross-border operations, transactions, reporting, indirect tax, credits, incentives and tax-process improvement.
MGO operates where tax rules interact with corporate structure, capital allocation, transactions, reporting obligations and operating processes. View the firm’s relevant services ↗
Sector and mandate coverage
- Corporate and private businesses
- Technology
- Manufacturing
- Financial services
- Real estate
- Consumer markets
- Corporate tax planning
- International tax
- Transaction tax
- Tax accounting and provision
- State and local tax
- Credits and incentives
The precise scope depends on the taxpayer, jurisdictions, legal entities, ownership structure, transaction perimeter and reporting requirements. Tax advice may require coordination with legal counsel, auditors, valuation specialists, technology providers and local professional firms.
Market position
MGO is positioned as a cpa and business advisory firm. Its relevance reflects the depth of its tax specialization, corporate-client orientation, technical delivery model and ability to support complex or recurring tax requirements.
Distinctive focus: Growth-company and middle-market tax services connected with assurance, transactions and sector-specific consulting.
Competitive context
MGO competes with tax-led professional-services firms, independent accounting networks, specialist consultancies and tax-technology platforms. The relevant peer set varies by jurisdiction, client size, tax type and whether the mandate requires strategic advice, compliance execution, specialist documentation or software.
Comparable firms are selected according to overlap in business model, client segment, service coverage, geographic activity and mandate profile. Inclusion does not imply an exhaustive competitor set or an equivalence in scale, ranking or market position.
Leadership
| Person | Current position | Institutional background |
|---|---|---|
| Kevin O’Connell | Chief Executive Officer and Managing Partner | Firm strategy, assurance and advisory leadership |
Leadership information reflects the roles available in the public sources reviewed on 20 August 2026. View current leadership information ↗
Corporate and regulatory information
Macias Gini & O’Connell LLP is a certified public accounting firm. Professional responsibilities, licensing and permitted services vary by engagement and jurisdiction.
View registered-entity details
| Principal entity | Macias Gini & O’Connell LLP |
| Professional status | Certified public accounting firm |
| Registration identifier | N/A |
| Headquarters | Los Angeles |
| Primary jurisdiction | United States |
Principal offices
- Los Angeles
- San Francisco Bay Area
- New York
- Sacramento
- San Diego
- Bengaluru
Rankings and recognition
Ranking inclusion is editorially determined. The existence or maintenance of a Wiki profile does not influence ranking eligibility, tier or position.
Related institutions and subjects
Sources and data transparency
The following sources were accessed on 20 August 2026:
- Tax Services — corporate tax, specialty tax or tax-technology capabilities.
- MGO — firm overview, services and institutional information.
- Advisory Ranking — Top 20 Corporate Tax Advisory 2026 inclusion and tier classification.
