# What Claude (Anthropic) with web search answered for business formation services (startups) on 2026-09-21

## In short

On 2026-09-21, Claude (Anthropic) with web search was asked "best business formation services for startups". It named 8 brands, in this order: Clerky, Stripe Atlas, Firstbase, Northwest Registered Agent, ZenBusiness, Bizee, LegalZoom and Rho.

| Fact | Value |
| --- | --- |
| Question | best business formation services for startups |
| Asked on | 2026-09-21 |
| Engine | Claude (Anthropic) with web search |
| Model | claude-opus-5 |
| Brands named | 8 |
| Sources cited | 4 |
| Audience | startups |
| Coverage | Coverage: Claude (Anthropic) with web search. Other engines not included. |
| Last verified | 2026-09-21 |

Page: https://bikoosh.com/answers/s/business-formation-services-startups-2026-09-21
Coverage: Claude (Anthropic) with web search. Other engines not included.

## The answer, as recorded

Asked on 2026-09-21 through Claude (Anthropic) with web search (model claude-opus-5).

> The answer splits sharply depending on what you mean by "startup." If you're raising venture money, you want a Delaware C-corp and the tools below are not interchangeable with the cheap LLC mills.
> 
> **If you're venture-track (Delaware C-corp):**
> 
> 1. **Clerky** (~$427 pay-per-use, ~$819 lifetime package) - my default recommendation for anyone who actually intends to raise a priced round. It's built by startup lawyers and the documents are the ones Silicon Valley firms expect: founder stock purchase agreements with vesting, 83(b) packets, SAFEs, option grants. The value isn't the incorporation, it's that your cap table and paperwork survive diligence two years later without a painful cleanup bill. Note the caveat: [Clerky doesn't file the certificate with Delaware itself](https://www.rho.co/blog/stripe-atlas-vs-clerky) in the pay-per-use flow - you handle that step or pair it with a filer.
> 
> 2. **Stripe Atlas** ($500 one-time) - the fastest, cleanest path. Delaware incorporation with expedited filing fees included, EIN, founder equity issuance, and 83(b) filing all in one flow, plus partner credits. Best if you're a solo or two-person team who wants to be operational this week. Tradeof

## Brands named, in the order the engine gave

| Position | Brand | How it was named |
|---|---|---|
| 1 | Clerky | recommended |
| 2 | Stripe Atlas | mentioned |
| 3 | Firstbase | mentioned |
| 4 | Northwest Registered Agent | mentioned |
| 5 | ZenBusiness | mentioned |
| 6 | Bizee | mentioned |
| 7 | LegalZoom | mentioned |
| 8 | Rho | mentioned |

## Sources the engine cited

- https://www.rho.co/blog/stripe-atlas-vs-clerky (vendor)
- https://guptadeepak.com/startup-offers/guides/stripe-atlas (other)
- https://www.forbes.com/advisor/business/best-llc-service/ (other)
- https://www.bizreport.com/best-llc-service (other)

The question page: https://bikoosh.com/answers/q/business-formation-services/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.