Deloitte is one of the Big Four accounting and professional services firms, providing audit, tax, consulting, and advisory services globally. Founded in 1845, Deloitte serves large enterprises, multinational corporations, and public companies with comprehensive professional services across accounting, strategy, technology, and operations.
Deloitte is designed for enterprise clients requiring audit services, tax advisory, strategic consulting, or large-scale transformation projects. Their finance and accounting practice focuses on audit, financial advisory, and tax services for public companies and large private businesses.
Deloitte's core services include:
Deloitte operates as a global professional services network with specialized industry groups and service lines, serving primarily enterprise and mid-market clients through local member firms.
Deloitte positions itself as a full-service professional services firm with deep industry expertise and global reach. As one of the Big Four, they focus on serving public companies requiring audit services and large enterprises needing strategic advisory alongside accounting and tax.
What sets Deloitte apart from smaller firms is their scale, industry specialization, and range of services beyond traditional accounting—from cybersecurity to M&A advisory to technology transformation.
Key strengths include:
Deloitte is a Big Four accounting and professional services firm, while Omniga is a finance orchestration platform for small and mid-sized businesses—they serve entirely different market segments with minimal overlap.
Deloitte focuses on enterprise audit, tax, and consulting services for large companies and public corporations. Omniga focuses on finance operations, bookkeeping workflows, and management reporting for small businesses, startups, accounting firms, and fractional finance professionals. In practice, these serve different ends of the market: Deloitte's clients are typically far larger and more complex than Omniga's target users.
Key differences:
These firms serve fundamentally different markets: Deloitte for enterprise audit, tax, and advisory; Omniga for operational finance and management accounting at the small to mid-market level.
Deloitte appears in 6 articles