One Arc Consulting delivers board-level advisory, debt structuring, internal audit, fractional CFO services, and legacy business transition — for organisations that demand precision, not process.
One Arc Consulting was founded on a single conviction: that the best financial advisory should feel like having a seasoned CFO in the room — not a consulting team running a methodology.
We work with founders, boards, and leadership teams across the full spectrum — from high-growth startups navigating their first institutional raise, to legacy family businesses engineering a generational transition, to enterprise boards seeking independent governance counsel.
Our engagements are deliberately selective. We take on fewer mandates so we can go deeper on each one. That's the One Arc difference.
Explore our servicesSix practice areas built around the decisions that define organisations — from the boardroom to the balance sheet.
A rare convergence of Chartered Accountants, legal strategists, and engineering experts — collectively bringing over 50 years of cross-industry experience to every mandate.
Our leadership team is anchored by practising Chartered Accountants with decades of combined experience across audit, taxation, financial strategy, and regulatory compliance. They bring the rigour of the profession and the judgment that only depth of practice develops.
Our legal experts bring sharp commercial acumen to contracts, corporate structuring, dispute resolution, and regulatory frameworks. They ensure every advisory engagement is not just financially sound — but legally bulletproof. A rare capability in a financial consulting firm.
What sets One Arc apart is the presence of engineering expertise within our advisory team. Our engineering specialists translate complex operational and manufacturing realities into financial language — enabling advisory grounded in how businesses actually work.
18 industries. One standard of advisory excellence.
One advisory firm. The full arc — from venture-backed startups and legacy family businesses to mid-market leaders and enterprise boards.
Sharp thinking on CFO strategy, debt advisory, and financial leadership — published when we have something worth saying.
Present across Tamil Nadu's two major financial and commercial centres — serving clients across South India.