The one workspace for research, memos and financial statements.

For technical accounting and financial reporting professionals.

50+ hours saved per accountant
500+ accountants on the platform
100% AI outputs are source-cited
Built and advised by professionals coming from
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What Quillon means for your team

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For Technical Accounting Teams

Reduce the risk of unsupported conclusions. Research complex questions and draft defensible memos with every claim traced to the source.

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Consulting Firms & Advisory Practices

Turn AI into a revenue stream, not a threat. Review client work faster, upsell advisory services, and earn recurring revenue as a Quillon reseller.

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For SEC Reporting Teams

Strengthen your disclosure support and filing quality. Benchmark peers directly from EDGAR and draft filings grounded in real data, not guesswork.

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Controllers & Finance Leaders

Reduce audit risk and close faster — without adding headcount. Give your team AI your auditor can defend, with full traceability built in.

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Your data, protected at every layer

Built for accountants handling sensitive data

Designed for teams working with confidential contracts, SEC filings, and audit materials.

Data isolation and encryption

Stored in a segregated environment, encrypted at rest with AES-256 and in transit via TLS.

No model training on your data

Your contracts, memos, and research stay yours. We never use customer data to train AI models.

SOC2 Compliance and Certification

Independently audited security controls. Your data is protected at every layer.

What CPAs are saying

Chad Anaya
Partner, Farber Hass Hurley LLP

"We had a complex equity raise with a very unique situation. I went to Quillon, it gave me all the references immediately — that alone saved us hours of combing through documents."

Stacy Starmer
VP Accounting Howard Hughes Communities

As a Real Estate Company with a high volume of leases, Quillon has helped us standardize our technical accounting reviews by reading through lengthy and complex lease language to efficiently conclude on our accounting treatment.

Ankit Sharma
Senior Director, Technical Accounting, Innovaccer

"Every new business launch, non-standard deal structure, or M&A transaction brings accounting questions that lack easy answers. Quillon has compressed our technical research cycle dramatically without compromising rigor."

of AI outputs cited to the exact source paragraph
100%
hours saved per accountant per month
50+
accountants on the platform
500+

Built by engineers. Designed by accountants.

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Built by engineers. Designed by accountants.

Book a Meeting
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2023

In 2023, three engineers left Goldman Sachs, Citibank, and a Swiss hedge fund to start a company.

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Problem

We didn't start in accounting — we found the problem when a San Francisco consulting firm told us that technical accountants had no AI tools built for them. Not one. So we embedded with practitioners: consultants, technical accounting directors, SEC reporting managers.

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Today

Every feature in Quillon was designed at the table with the people who do this work every day — technical accountants, SEC reporting managers, and consultants who pressure-test every workflow before it ships.

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Nikolay Dakov
CEO

Oxford (MSc Economics), UCL (BSc Computer Science). Former Goldman Sachs (FICC derivatives automation). Active in ML research since 2012.

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Ivaylo Stefanov
CTO

UCL (BSc Computer Science). Former Vice President at Citibank, where he built their Large Language Model foundations.

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Atanas Dobrev
COO

Sofia University (Informatics & Mathematics). Top 5 algorithmic competitor in Bulgaria. Former key developer for the National Revenue Agency Electronic Services.

Richard Metcalfe
Go-To-Market Advisor

17 years in regulatory reporting software. Founder of ARKK, the UK iXBRL, ESEF and tax automation platform. CEO for 12 years, on its board since 2021.

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Mohammad Hasham
CPA, Strategic Advisor

Advisor 19+ years in technical accounting. Partner at CohnReznick, former Managing Director at Grant Thornton, former Director at BDO US.

The team behind Quillon

Frequently asked questions

What is Quillon?

A collaborative AI workspace for financial reporting and technical accounting teams. Accounting research, SEC research and benchmarking, memos and financial statement preparation in one place, with every conclusion linked to its source and every figure to its support.

Who is Quillon for?

Financial reporting, technical accounting and SEC reporting teams, controllers, and accounting advisory firms. In practice that means listed and pre-IPO companies, groups preparing consolidated and statutory sets, and firms doing this work for a book of clients.

How is Quillon different from general-purpose AI?

Quillon indexes all US GAAP and IFRS standards and real filings, citing every answer to limit hallucinations. When judgment is needed, it asks you.

Can I trust Quillon's answers?

Every answer and conclusion links to its source paragraph, so you can read the guidance and check the interpretation yourself. Quillon does not replace professional judgment. When a decision is required it flags it, and you make the call. You approve every conclusion and every document change.

Can Quillon draft accounting memos?

Drop in the agreements. Quillon extracts the terms that affect the accounting, builds a decision tree from the standards that apply, and walks you through it node by node. Accept or reject each step, then it drafts the memo in Word with every conclusion cited and your decisions recorded.

What can Quillon do for financial statement preparation?

Roll forward last year's statements against this year's numbers, draft with every figure linked to its support, run math and consistency checks, work through disclosure checklists, manage review and sign-off, and finalize. Every change, comment and approval is recorded.

Can Quillon's AI change my financial statements?

Only with your approval. The agent finds inconsistencies, explains them, and carries out updates you ask for in plain English. Proposed changes arrive as tracked changes for review, and everything completed stays in the audit trail. You automate the repetitive work without losing oversight.

Can Quillon help me transition from IAS 1 to IFRS 18?

Yes. Transitioning from IAS 1 to IFRS 18 means checking your existing statements against every changed requirement. Quillon runs that comparison automatically, mapping each IAS 1 requirement to its IFRS 18 equivalent, flagging what changes, what is newly required and what no longer applies, each with its citation, then drafting the new disclosures. IFRS 18 applies to annual periods beginning on or after 1 January 2027, so calendar-year preparers need IFRS 18-ready 2026 comparatives. IFRS 19 reduced disclosure is covered too.

How does Quillon support collaboration and review?

Preparers, reviewers and approvers work in the same environment on one master file. Share research, assign responsibility, keep comments attached to the work, and see what is outstanding, what changed, and what has been approved. Work is organized by company, entity or project.

Is my data secure?

Yes. Quillon is built for teams working with audit-sensitive material. Data is isolated, encrypted with AES-256 at rest and TLS in transit, and never used to train AI models. Quillon is SOC 2 compliant with independently audited controls. Access is managed inside the workspace, and activity is recorded, including changes, comments, review actions and approvals. Security documentation is available to procurement on request.

Can we start with one Quillon module?

Yes. Quillon is one connected product, but you can start with what you need today: Accounting Research, SEC Research and Benchmarking, Memo Writer, or Financial Statements. Add the rest as your requirements develop, without creating another disconnected system to reconcile.

Do you provide or distribute third-party accounting materials?

No. Quillon operates on a bring-your-own-content model. Third-party materials shown on the website or in demos are illustrative and not included with a subscription, and you are responsible for holding the rights to what you upload. Public SEC EDGAR filings are built in.

Pick up the quill

Step inside. Your auditor will thank you.