Cap Table Software for Custom Software Shops: Pulley vs Carta
A custom software or product engineering shop rarely looks like a venture-backed startup on paper: revenue often comes from client contracts, not a single product, and growth can be funded from cash flow rather than a priced round. That changes which parts of Pulley vs Carta for custom software & product engineering actually matter to you.
Both tools were designed with startup fundraising in mind, but a services-heavy shop uses them differently: less about modeling the next round, more about giving senior engineers and delivery leads a real stake without a full financing event.
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Why a bootstrapped shop still needs a formal cap table
If you've never taken outside capital, it's tempting to track a handful of founder and senior-hire grants in a spreadsheet indefinitely. The problem shows up the first time you consider an acquisition, a minority investment, or even a large client asking for financial diligence before signing a multi-year contract: a spreadsheet with no version history and no attached signatures reads as sloppy at exactly the moment you need to look organized.
A cap table tool doesn't require a financing round to be worth using. It's a system of record that makes the next conversation, whenever it happens, faster, and it removes the awkward moment where a founder has to reconstruct a grant history from old email threads because nobody kept a single source of truth.
Equity as a retention lever in a talent-tight market
Software shops compete for the same senior engineers that product companies do, without always being able to match cash compensation. Median pay for a software developer is $135,980 a year, and the top quartile clears $171,9801. A small equity grant has to be sized against that real number, since your best engineers already know it from other job offers.
The fix isn't necessarily a bigger grant, it's a clearer one: show the ownership percentage, the current 409A-derived value, and the vesting schedule side by side, which most cap table tools can do, so a candidate isn't left guessing what a fraction of a percent of the company is actually worth in dollars.
Modeling dilution when you take on a minority investor
Some shops eventually take a growth investment or sell a minority stake to fund a bigger build-out or a shift toward owned products. When that happens, you need the same dilution modeling a venture-backed startup would use, just applied to a smaller, less frequent event. Pulley's SAFE-and-priced-round modeling works fine here even without repeat fundraising, since the underlying math is identical.
Carta's advantage shows up if that minority investor is an institutional fund with its own fund administrator: they'll likely already know how to read a Carta cap table, which shortens diligence.
Keeping grants tied to delivery, not just tenure
In a services business, the people worth retaining are often the ones running your highest-margin accounts, not necessarily your most senior title. Set vesting and refresh grants around real milestones, such as a lead engineer bringing a new practice area to profitability, rather than a flat time-based schedule alone. Document the criteria in the grant paperwork itself so it survives a change in who runs HR.
Both platforms let you record vesting terms beyond a simple four-year cliff; the discipline is in writing the criteria down, not the software.
What to check before you connect either tool to your stack
- Confirm the tool's HRIS and payroll integrations actually cover the systems your shop runs, not just the largest ones on the market.
- Ask whether option exercise notices route through your existing e-signature tool or a separate one.
- Check whether your accountant can pull a clean equity compensation expense report at year end without a manual export.
- Confirm who at your shop has admin rights to issue a grant, and lock that down before your first hire.
Getting this right once avoids a slow, embarrassing cleanup during your first serious diligence process.
How this differs from a venture-backed company's cap table work
A venture-backed startup's cap table team spends most of its time modeling the next round: pool sizing, pro-rata rights, liquidation preference stacking. A services shop's cap table work is quieter and more occasional, closer to a legal housekeeping function than an active fundraising tool, which means it's easy to let it go stale between events.
Put a recurring calendar reminder on it anyway, say once a quarter, to check that every current employee's vesting status is accurate and that anyone who recently left has been flagged for their post-termination exercise deadline, which is often 90 days but depends on your plan and the type of option. A cap table that's only ever touched during a crisis is a cap table that has quiet errors sitting in it the rest of the time.
What Good Looks Like
A well-run cap table in a custom software shop has every grant tied to a signed agreement, vesting criteria written down beyond a bare time schedule, and a record clean enough to hand to an acquirer's counsel without a cleanup pass first.
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Pulley's dilution modeling works the same whether you're fundraising repeatedly or taking a single minority investment years apart, without extra setup.
Carta's cap table format is one an institutional minority investor's fund administrator will likely already recognize, which can shorten a diligence process.
Frequently Asked Questions
Do we need a cap table tool if we've never raised outside money?
If you've issued any equity to a co-founder or a senior hire, yes. The value isn't about fundraising, it's about having a clean, auditable record ready for the day a client, acquirer, or investor asks to see one. A spreadsheet with no attached signatures is a real liability during diligence.
Can we use these tools for profit-interest grants instead of stock options?
Both are built primarily around traditional stock options in a C-corp structure. If your shop runs as an LLC issuing profit interests, check directly with the provider and your accountant before committing, since the tax and reporting mechanics differ from an ISO or NSO grant.
How do we decide what percentage to offer a new senior engineer?
Start from the dollar value you want the grant to represent at your current 409A valuation, not a round percentage, then let the tool convert that into shares. Comparing offers as dollars keeps the conversation grounded in what a candidate can actually compare against another job offer.
Sources
Where we quote a benchmark, we show its source. Other figures in this guide are estimates or general guidance, so check them against your own numbers.
- Annual wage, Software Developers (SOC 15-1252), US all industries. BLS OEWS May 2025, 2025.
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