# What Claude (Anthropic) with web search answered for business formation services (startups) on 2026-09-15

## In short

On 2026-09-15, Claude (Anthropic) with web search was asked "best business formation services for startups". It named 11 brands, in this order: Clerky, Y Combinator, Stripe, Stripe Atlas, Northwest Registered Agent, ZenBusiness.

| Fact | Value |
| --- | --- |
| Question | best business formation services for startups |
| Asked on | 2026-09-15 |
| Engine | Claude (Anthropic) with web search |
| Model | claude-opus-5 |
| Brands named | 11 |
| Sources cited | 9 |
| Audience | startups |
| Coverage | Coverage: Claude (Anthropic) with web search. Other engines not included. |
| Last verified | 2026-09-15 |

Page: https://bikoosh.com/answers/s/business-formation-services-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).

> Short version: the right answer splits hard on one question - **are you raising venture money or not?** The tools barely overlap.
> 
> ## If you're a venture-track startup (Delaware C-corp, planning to raise)
> 
> **1. Clerky - $499 for the full startup stack.** This is my default recommendation. It's built specifically for venture-track US startups and is what most Y Combinator companies use: Delaware C-corp formation, founder stock with vesting, 83(b) elections, board consents, SAFEs, and option grants. The value isn't the incorporation - it's that two years later when a real investor's lawyer does diligence, your paperwork is clean. Its templates handle uneven founder splits and non-standard vesting, which the more automated flows don't. One thing to verify yourself: multiple sources report Clerky announced in August 2026 that it's joining Stripe while operating independently. If true it probably doesn't change much near-term, but confirm the current state before committing.
> 
> **2. Stripe Atlas - flat $500.** Pick this if speed and getting operational fast matter more than paperwork edge cases. Incorporates in ~1-3 days and includes the state filing, EIN (auto SS-4 filing), founder stock

## Brands named, in the order the engine gave

| Position | Brand | How it was named |
|---|---|---|
| 1 | Clerky | mentioned |
| 2 | Y Combinator | mentioned |
| 3 | Stripe | mentioned |
| 4 | Stripe Atlas | mentioned |
| 5 | Northwest Registered Agent | mentioned |
| 6 | ZenBusiness | mentioned |
| 7 | Trustpilot | recommended |
| 8 | Bizee | mentioned |
| 9 | LegalZoom | mentioned |
| 10 | Firstbase | mentioned |
| 11 | Rho | mentioned |

## Sources the engine cited

- https://www.forbes.com/advisor/business/best-llc-service/ (other)
- https://www.rho.co/blog/best-llc-formation-services (vendor)
- https://www.rho.co/blog/stripe-atlas-vs-clerky (vendor)
- https://stripe.com/atlas (vendor)
- https://www.flowjam.com/blog/clerky-review-2026-pricing-alternatives-by-founder-type (other)
- https://www.zenbusiness.com/best-llc-services/ (vendor)
- https://www.llcuniversity.com/incfile-alternatives/ (other)
- https://startupsavant.com/service-reviews/stripe-atlas-alternatives (other)
- https://www.quicksprout.com/best-business-formation-services/ (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.