# What Claude (Anthropic) with web search answered for e signature software (startups) on 2026-09-15

## In short

On 2026-09-15, Claude (Anthropic) with web search was asked "best e signature software for startups". It named 10 brands, in this order: Dropbox, Dropbox Sign, Docusign, Carta, PandaDoc, SignWell.

| Fact | Value |
| --- | --- |
| Question | best e signature software for startups |
| Asked on | 2026-09-15 |
| Engine | Claude (Anthropic) with web search |
| Model | claude-opus-5 |
| Brands named | 10 |
| Sources cited | 5 |
| Audience | startups |
| Coverage | Coverage: Claude (Anthropic) with web search. Other engines not included. |
| Last verified | 2026-09-15 |

Page: https://bikoosh.com/answers/s/e-signature-software-startups-2026-09-15
Coverage: Claude (Anthropic) with web search. Other engines not included.

## The answer, as recorded

Asked on 2026-09-15 through Claude (Anthropic) with web search (model claude-opus-5).

> ## My actual picks, in order
> 
> **1. Dropbox Sign** - where I'd start for most startups. Cleanest signing UX of the mainstream options, and it's the one major vendor whose API is available on a normal self-serve tier (Standard, ~$30/user/mo) rather than behind a sales call. Essentials runs ~$15/user/mo if you just need signing. (Note: "HelloSign" and Dropbox Sign are the same product - it was rebranded in 2021, so ignore comparison posts that list them as two options.)
> 
> **2. Docusign** - pick this when counterparty trust matters more than price. Every law firm, VC, and enterprise procurement team already accepts it, and their paralegals know the interface. That's genuinely worth something on a priced round or a first enterprise contract. Downside: ~$45/user/mo on Standard, seat-based pricing that punishes you for adding teammates, and API pricing requires sales. For fundraising specifically, this is usually moot anyway - Carta or your law firm's own Docusign account handles the docs.
> 
> **3. PandaDoc** - the right answer if signing is the *last step* of a sales motion, not a standalone need. Templates, quotes, proposals, pricing tables, and analytics on who opened what. Roughly $35/use

## Brands named, in the order the engine gave

| Position | Brand | How it was named |
|---|---|---|
| 1 | Dropbox | mentioned |
| 2 | Dropbox Sign | mentioned |
| 3 | Docusign | mentioned |
| 4 | Carta | mentioned |
| 5 | PandaDoc | mentioned |
| 6 | SignWell | recommended |
| 7 | BoldSign | recommended |
| 8 | Zoho | mentioned |
| 9 | Zoho Sign | mentioned |
| 10 | Documenso | mentioned |

## Sources the engine cited

- https://valueaddvc.com/blog/best-e-signature-tools-for-startups-in-2026-docusign-pandadoc-dropbox-sign-compared (other)
- https://www.stackscored.com/pricing/e-signature/ (other)
- https://www.turbodocx.com/best-esignature-api-comparison (other)
- https://zignt.com/blog/e-signature-pricing-comparison-guide-2026 (other)
- https://www.pandadoc.com/blog/best-electronic-signature-software/ (vendor)

The question page: https://bikoosh.com/answers/q/e-signature-software/startups

Answer Watch records what one AI answer engine said on one date, nothing more. Each page names the engine and the model, carries the date the question was asked, and lists the brands that appeared in the answer in the order the engine gave them, with the sources it cited. It is a measurement, not a ranking, not a recommendation and not a claim about the world. Brands that did not appear in an answer are not named on any public page. Coverage: Claude (Anthropic) with web search. Other engines not included.