409A Valuation Providers for Series A Startups: A Buyer's Guide [2026]

What Changes After Your Series A That Affects Your 409A

Your Series A close is a material event under Treasury Regulations Section 1.409A-1(b)(5)(iv)(B), which provides that a prior 409A valuation is no longer reliable once there has been a significant change in circumstances likely to materially affect the fair market value of the company. A priced preferred round is the clearest example of such a change. Your existing 409A — however recently it was done — cannot be used for option grants made after your Series A close.

Several things change in the valuation at Series A that were not factors at seed stage:

New capital structure. Your Series A introduces a new class of preferred stock with specific liquidation preferences, participation rights, anti-dilution provisions, and conversion ratios. Any prior OPM analysis was based on your seed round terms. The new terms must be modeled explicitly in the post-Series A 409A because they directly affect how equity value distributes to common stockholders at various exit prices.

SAFE and note conversions. Most Series A closes trigger the conversion of outstanding SAFEs and convertible notes into preferred or common stock. The post-Series A cap table looks materially different from the pre-Series A cap table, and the new equity structure must be reflected accurately in the 409A.

Expanded option pool. Series A investors typically require the option pool to be expanded as a condition of the financing (usually to 10-15% of the post-close cap table on a fully diluted basis). This pool expansion dilutes common stockholders and must be factored into the common stock valuation.

New enterprise value reference point. The Series A financing price establishes a clear new reference point for the company's implied enterprise value. The post-Series A 409A backsolves from this price as the anchor, which effectively replaces whatever enterprise value was used in the prior valuation.

Understanding all the steps involved in a post-Series A 409A, from documentation collection through report delivery, is covered in our 409A valuation process guide.

What to Look for in a 409A Valuation Provider at Series A

The criteria for selecting 409A valuation providers for Series A startups differ somewhat from seed stage because your situation is more complex and the stakes are higher. You likely have institutional investors who expect proper process, a larger option pool, and more employee recipients who will be affected by the strike price.

Credentialed appraiser sign-off. The independent appraisal safe harbor under Treasury Regulations Section 1.409A-1(b)(5)(iv) requires a qualified independent appraiser — someone with an ASA, ABV, or CVA designation. This requirement is non-negotiable and eliminates DIY tools, unsigned reports, and any service that cannot provide a credentialed appraiser signature. Understanding the full scope of 409A safe harbor requirements is essential before engaging any provider.

Series A OPM expertise. The Series A 409A requires accurate modeling of the new preferred terms. Look for a provider whose appraisers have demonstrable experience with venture-backed companies at Series A: they should be able to correctly model participating preferred vs. non-participating preferred, weighted average anti-dilution adjustments, and the interaction between the option pool refresh and common stock value. A provider that applies the same template methodology regardless of your terms is a risk.

Methodology documentation quality. At Series A, your investors and counsel will likely review the 409A report in connection with board-approved option grants. The report must document all inputs, methodology choices, and appraiser judgment calls clearly. Thin reports that present conclusions without supporting analysis create problems during board meetings and downstream audit.

Turnaround speed. You may have hired aggressively in anticipation of your Series A close and have employees waiting for their first option grants. The faster your provider can deliver a defensible report, the sooner you can execute those grants. Providers who can deliver post-Series A reports in under two weeks are significantly more operationally useful than those who take four to six weeks.

Clear escalation for complex issues. Series A cap tables sometimes present edge cases: a SAFE with an MFN provision that affected conversion, a bridge note with complex terms, unusual Board observation rights that some appraisers consider control features. You want a provider who has clear processes for escalating non-standard situations to senior appraisers, not one that applies a standard template regardless of your specific facts.

The Best 409A Valuation Providers for Series A Startups in 2026

The following profiles cover the providers best suited for Series A startups. For a broader cross-stage comparison, see our best 409A valuation providers in 2026 overview.

409A Valuation. Strong choice for Series A companies with clean to moderately complex cap tables. The platform handles Series A OPM backsolves with proper preferred term modeling, and credentialed appraisers (ASA or ABV) review and sign every report. Expert sign-off for post-Series A reports is $499. Turnaround is typically 3-7 business days from complete document submission. Best for: Series A companies with institutional preferred terms, converted SAFEs, and an expanded option pool, where the structure is typical rather than highly unusual.

Carta. Well-integrated with Series A companies already managing equity on the Carta platform. For companies using Carta for their cap table, the document-sharing process is seamless. Pricing for Series A 409A valuations typically ranges from $2,000-$3,500 depending on cap table complexity. Turnaround is typically 1-3 weeks. Carta's Series A methodology uses an OPM backsolve with standard preferred term modeling. Best for: companies already on Carta who value the cap table integration.

Scalar. Competitive pricing at Series A, with software-enabled analysis backed by credentialed appraisers. Scalar handles Series A OPM backsolves and has grown its Series A client base significantly. Pricing typically ranges from $2,000-$4,000 for standard Series A situations. Best for: Series A companies looking for a mid-tier platform with fast turnaround and competitive pricing.

Kruze Consulting. Kruze has a substantial Series A client base through its accounting practice. The 409A team has experience with a wide range of Series A structures and produces thorough, well-documented reports. Pricing for Series A engagements typically starts around $3,000-$5,000. Turnaround is typically 7-14 business days. Best for: companies already using Kruze for accounting and controller services who want consistent provider relationships across financial functions.

Aranca. Aranca is a mid-tier valuation firm specializing in startup 409A valuations across Series A through late-stage companies. Their methodology is well-documented and appraiser credentials are established. Pricing for Series A engagements typically ranges from $2,500-$5,000. Turnaround is typically 1-2 weeks. Best for: Series A companies that want a specialized valuation firm with a startup focus rather than a software platform or general accounting firm.

Traditional valuation firms (Big Four affiliates, regional boutiques). At Series A, traditional firms become a more reasonable consideration than at seed stage — particularly if your lead investor is a top-tier institutional firm that expects a name-brand provider, or if your cap table has unusual structural complexity. Pricing typically ranges from $8,000-$20,000 for Series A engagements. Turnaround runs 2-5 weeks. Best for: Series A companies with investor mandates or cap tables too complex for standard software-enabled platforms.

Cost Benchmarks: What Series A 409A Valuations Actually Cost

Series A 409A valuations cost more than seed-stage valuations for a legitimate reason: there is more analytical work involved. The post-Series A cap table typically includes converted SAFEs with varying valuation caps, a new Series A preferred class with specific waterfall terms, an expanded option pool, and potentially warrants or other instruments. Each of these must be accurately modeled in the OPM.

The cost range in 2026 runs from $499 at the low end (software-enabled platforms with appraiser sign-off) to $20,000 or more at traditional valuation firms for very complex Series A situations. The median for a standard Series A company with typical institutional preferred terms sits in the $2,000-$4,000 range across the mid-tier market.

As at seed stage, cost does not equal defensibility. The independent appraisal safe harbor requires a credentialed appraiser, reasonable methodology, and adequate documentation — not a minimum fee. A $499 report that satisfies all three requirements achieves the same safe harbor protection as a $15,000 report that satisfies the same three requirements. The practical question is whether the lower-cost provider actually satisfies all three for your specific cap table.

For a structured comparison of how to evaluate any provider on the key dimensions, see our 409A valuation providers comparison guide.

Timing: When to Get Your 409A After Closing Your Series A

The most common mistake Series A companies make with their 409A is letting too much time pass between the close and completing the new valuation. Here is the typical scenario: the team is heads-down post-close integrating new board members, processing paperwork, and building toward the next milestone. The 409A gets pushed to the backlog. Three months go by, and the CEO realizes there are 12 new employees with pending option grants but no current 409A.

Best practice is to initiate your post-Series A 409A valuation within two to four weeks of the close. This gives you time to complete the process before your first board meeting where option grants are typically approved, and before the operational pressure of pending grants becomes acute.

Practically, you need to wait until the Series A close is fully documented: the stock purchase agreement is executed, the amended certificate of incorporation reflecting the new Series A preferred is filed with the state, and your cap table reflects the conversion of all SAFEs and notes. Starting the 409A process before the cap table is final creates rework. Starting it more than 60-90 days after close creates operational problems. The window between close and 409A completion directly corresponds to the gap in your ability to grant options.

Valuation Methodology Changes at Series A

The standard 409A valuation methodology for a Series A company is the OPM backsolve — the same general approach used at seed stage, but with more complex inputs. Understanding what changes helps you evaluate whether your provider is applying an appropriate methodology.

Enterprise value anchor. The OPM backsolve uses the most recent financing price to anchor the enterprise value. At Series A, this is the Series A preferred stock price per share. The appraiser derives the implied total equity value of the company from this price, factoring in all outstanding shares and instruments on a fully diluted basis.

Preferred term modeling. The option pricing model then distributes this enterprise value across the capital structure according to the liquidation waterfall. At Series A, this means modeling the Series A preferred liquidation preference, any seed preferred that was not converted, common stock, and the option pool. Whether the preferred is participating or non-participating, and the cap on participation if applicable, directly affects how much value flows to common stockholders at various exit prices.

Volatility selection. The OPM requires a volatility assumption, which for private companies is derived from the historical volatility of comparable publicly traded companies. At Series A, the peer set may shift compared to seed stage: the appraiser should select peers that are closer to your Series A company's scale and market position, not just early-stage technology companies generically. This is a judgment call where provider quality matters.

DLOM at Series A. The discount for lack of marketability at Series A typically falls in the 25-35% range, lower than seed stage (30-45%) because the expected time to liquidity is shorter and the company has demonstrated product-market fit through the fundraising process. The specific DLOM depends on the appraiser's assessment of expected holding period and peer volatility.

Common stock as a percentage of preferred. A key output of the post-Series A 409A is the ratio of common stock value to the Series A preferred price per share. For a typical Series A, common stock often falls in the 15-35% range of the preferred price, depending on the liquidation preferences, participation rights, the size of the DLOM, and the expected time to exit. A ratio outside this range without clear justification is worth questioning.

Turnaround Time After Your Series A Close

The total elapsed time between initiating your post-Series A 409A and receiving a signed report depends on two variables: how quickly you submit complete documentation, and how fast your chosen provider works.

Typical turnaround by provider type for Series A engagements:

• Software-enabled platforms: 3-10 business days from complete document submission
• Mid-tier specialized firms (Kruze, Aranca, Scalar): 7-14 business days from document submission
• Traditional valuation firms: 2-5 weeks from engagement letter execution

Series A engagements take longer than seed-stage because there are more documents to review: the Series A term sheet and stock purchase agreement, the amended articles, SAFE conversion calculations, and the updated cap table. Make sure your documents are complete before initiating. A partially complete submission results in back-and-forth that extends the timeline by days or weeks.

Common Mistakes Series A Companies Make With Their 409A

Assuming the seed-stage 409A is still valid. The most common mistake is treating your existing 409A as valid post-close when it is not. The Series A close is a material event that invalidates your prior valuation for purposes of new option grants. Even if your valuation is only three months old, you cannot use it after your Series A.

Waiting too long to initiate the process. Many Series A companies let the 409A sit on the "to-do" list for 60-90 days post-close while managing the post-fundraise operational burst. This creates a gap during which no options can be granted. The ideal time to initiate is within two to four weeks of close, once the cap table is final.

Using a provider not suited for the cap table complexity. If your Series A involved multiple SAFE conversions, unusual participation terms, or a complex bridge note, a purely automated software tool without human appraiser review of the specific terms may produce an inaccurate result. Series A valuations are structurally more complex than seed valuations. Verify that your chosen provider has appraisers who actually review your specific terms rather than running a template.

Not considering the board's process for option approvals. Board-approved option grants require a current 409A to set the exercise price. If you have a board meeting scheduled six weeks post-close at which you plan to approve a large option grant pool, you need your 409A done before that meeting. Plan backwards from the approval date, not forward from when you feel ready to start the process.

Choosing a provider based solely on prior-stage pricing. A provider that was the right choice at seed stage because of its low price may not be the right choice at Series A if its analytical framework does not adequately handle the more complex preferred term modeling your new cap table requires. Re-evaluate providers at each funding stage rather than defaulting to whoever you used last time.

What Documentation Series A Companies Need to Provide

Series A 409A engagements require more documentation than seed-stage because the capital structure is more complex. Having these documents ready before initiating the engagement substantially speeds up the process:

• Fully updated cap table — reflecting all post-close conversions, the new Series A preferred shares, the expanded option pool, and any warrants issued in connection with the financing. Export from Carta, Pulley, or Astrella preferred.
• Series A financing documents — the executed stock purchase agreement, investors' rights agreement, voting agreement, and the amended and restated certificate of incorporation reflecting the Series A preferred terms.
• SAFE and convertible note conversion calculations — showing how each SAFE and note converted, including the applicable valuation cap and discount rate applied.
• Financial statements — balance sheet, income statement, and cash flow for the most recent available period. Series A companies typically have 12-24 months of operating history to share.
• Revenue and financial projections — a 3-5 year model is standard for Series A 409A engagements. The projections are used as a cross-check on the enterprise value derived from the OPM backsolve.
• Business description and company overview — key metrics, product overview, total addressable market, and competitive positioning. The pitch deck from your Series A is usually sufficient.
• Prior 409A report — if available, provides the appraiser with context on the prior methodology and comparable company selections.