409A valuations, ASC 820 marks & purchase price allocations, documented for audit.
FairValueX is an independent valuation firm preparing IRC §409A valuations, ASC 820 portfolio marks, purchase price allocations (ASC 805), and ASC 718 stock-compensation valuations — with documentation that is reproducible and traceable to source. Timeline and fixed fee confirmed at scoping.
Scope proposals reviewed personally — reply within one business day.
A named, credentialed signatory on every report.
Each report is reviewed and signed, before it is issued, by a credentialed valuation professional (ASA, CVA) engaged as an independent review signatory. The signatory is named in the engagement letter and on the signed attestation, so you know who stands behind the opinion before work starts.
How we work →Our practice.
IRC §409A and ASC 718 valuations, purchase price allocations (ASC 805), portfolio valuations under ASC 820, and complex securities such as convertible notes, warrants and earnouts. The fixed fee and delivery date are confirmed in writing at scoping, before work begins.
Engagements & fees →Our practice areas. One documentation standard.
409A Valuation
IRC §409A safe harbor valuations of common stock — before option grants, after material events, refreshed every 12 months. Delivered as a audit binder of up to 20 sections, scoped to the engagement — not an 8-page narrative.
409A valuation services →ASC 820 Portfolio Valuation
Quarterly fair value measurement for PE and VC funds — Level 3 marks with calibrated inputs, consistent quarter-over-quarter methodology, and documentation your LP auditor can reconstruct.
ASC 820 valuation services →Purchase Price Allocation
ASC 805 allocations after close — intangible identification, MPEEM and relief-from-royalty valuation, WARA reconciliation, and goodwill that survives the Day-1 audit.
Purchase price allocation →ASC 718 Stock Compensation
Grant-date fair value for options, RSUs, and awards with market conditions — Black-Scholes, lattice, and Monte Carlo, with every input sourced and every judgment documented.
ASC 718 valuation services →What every engagement delivers.
Most valuation reports are defensible until challenged.
FairValueX deliverables are built for challenge — structured so your auditor, your LP, and your counterparty’s counsel can reconstruct every step without a follow-up call.
That means documented assumptions, sourced inputs, traceable methodology, and a credentialed valuation professional (ASA, CVA), engaged as an independent review signatory, who reviews the methodology, verifies the analysis, and signs the attestation — before the report leaves our hands.
FairValueX has no financial interest in the companies it values or the transactions it supports. Each engagement starts with a conflict check, and each deliverable includes a written independence confirmation.
“The bottleneck in valuation isn’t methodology. It’s documentation discipline.”
The teams that can't afford a second opinion.
Who need a 409A or ASC 718 valuation documented well enough that the audit does not stall on it.
Who need Level 3 marks documented so the fund’s auditor can follow each input and judgment.
Startup and M&A counsel whose clients need a valuation they can rely on. How referrals work.
Series Seed through Series B founders and boards who need a supportable IRC §409A value before their next option grant.
The methodology, in writing.
The Complete Guide to 409A Valuations
When you need one, how it works, what it costs, safe harbor requirements, and how to choose a provider.
ASC 820 Fair Value: The Working Guide
The fair value hierarchy, Level 3 inputs, calibration, and what auditors test at quarter-close.
OPM vs. Backsolve vs. PWERM vs. DCF
Choosing the right equity allocation method — and documenting why, so the choice survives review.
Ready to scope your engagement?
If you're heading into audit season, a transaction closing, or your next quarter-end mark: we'll tell you exactly which package you need, what inputs are required, and what "done" means.
Request scope + timeline See how it works