What Claude (Anthropic) with web search answered for business formation services (startups) on 2026-09-17

Claude (Anthropic) with web search claude-opus-5 asked 2026-09-17

Coverage: Claude (Anthropic) with web search. Other engines not included.

The question asked, verbatim: best business formation services for startups

Brands named, in the order the engine gave

1. Clerky mentioned
   Clerky (~$799) - This is what I'd actually use.
2. Cooley mentioned
   The thing that makes it worth the premium is that every document is the same standard a Cooley or Gunderson associate would produce, so your Series A diligence doesn't turn into a cleanup project.
3. Stripe Atlas mentioned
   Stripe Atlas ($500) - The fastest clean path.
4. Firstbase mentioned
   Firstbase ($399) - Pick this if you want formation plus the back office from one vendor.
5. Northwest Registered Agent recommended
   Northwest Registered Agent ($39 + state fees) - My default recommendation here.
6. ZenBusiness mentioned
   ZenBusiness - The smoothest experience for a first-time founder;
7. LegalZoom mentioned
   LegalZoom - Worth it mainly if you want ongoing access to legal documents and attorney consults beyond formation.
8. Rho mentioned
   LegalZoom: 2026 Incorporation Guide for Startup Founders - Rho (https://www.rho.co/blog/stripe-atlas-vs-clerky)

Sources the engine cited

The answer, as recorded

The right answer forks hard on one thing: are you raising venture capital or not? A VC-track Delaware C-corp and a small-business LLC are different products, and most "best formation services" listicles blur them. ## If you're VC-track (Delaware C-corp, co-founders, equity to split) **1. Clerky (~$799)** - This is what I'd actually use. It's built by startup lawyers specifically for the paperwork investors and acquirers diligence later: stock issuance, vesting agreements, 83(b) elections, board consents, bylaws, IP assignment. The thing that makes it worth the premium is that every document is the same standard a Cooley or Gunderson associate would produce, so your Series A diligence doesn't turn into a cleanup project. Caveat worth knowing: Clerky doesn't file the Delaware incorporation itself - you do that step or pair it with a filing service. **2. Stripe Atlas ($500)** - The fastest clean path. One flat fee covers Delaware incorporation with expedited filing, state fees, EIN, founder share issuance, 83(b) filing, and the first year of registered agent (~$100/yr after). If you want to be incorporated, banked, and taking payments in days, this is it. The tradeoff is it's transactional - no ongoing legal support, tax help, or compliance reminders. Excellent if you're a solo or two-person team with a simple cap table; thinner if your equity situation has any nuance. **3. Firstbase ($399)** - Pick this if you want formation plus the back office from one vendor. It layers on bookkeeping, payroll, tax filing, and compliance automation as you grow, and it handles 83(b) elections. It's the most "operating system" of the three, which is either the selling point or the overkill depending on whether you'd otherwise be stitching those together yourself. **4. An actual startup lawyer** - Genuinely the right call if you have four founders, someone's leaving a job with an IP assignment clause, there's a foreign founder, or anyone's contributing existing code or a prior company. Formation platforms handle the standard case beautifully and the non-standard case badly, and equity mistakes are expensive and slow to unwind. Many startup firms will do formation at a flat or deferred fee to win the relationship. ## If you're a small business / solo founder forming an LLC **5. Northwest Registered Agent ($39 + state fees)** - My default recommendation here. Straightforward pricing, no aggressive upsell funnel, and genuinely good on privacy - they use their address instead of putting your home address in the public record, which matters more than people expect. The fee now bundles a business address, domain, website, email, and phone. **6. ZenBusiness** - The smoothest experience for a first-time founder; ~950,000 businesses formed, with compliance alerts and banking integrations that keep you from missing annual report deadlines. Slightly more upsell-heavy than Northwest. **7. LegalZoom** - Worth it mainly if you want ongoing access to legal documents and attorney consults beyond formation. $0 + state fees for basic formation. Priciest at the higher tiers, but the broadest legal product catalog. **One thing I'd push back on:** for a simple single-member LLC in your home state, filing directly with the Secretary of State costs just the state fee and takes about 20 minutes. The services are buying you registered agent coverage, privacy, and deadline tracking - real value, but know that's what you're paying for. And ignore the common advice to form in Delaware or Wyoming for a local business; if you operate in your home state you'll register there anyway and pay twice. Sources: - [TESTED: Best LLC Formation Services of 2026 - Forbes Advisor](https://www.forbes.com/advisor/business/best-llc-service/) - [Stripe Atlas vs. Clerky vs. LegalZoom: 2026 Incorporation Guide for Startup Founders - Rho](https://www.rho.co/blog/stripe-atlas-vs-clerky) - [Stripe Atlas vs Clerky 2026: Which Is Better (+ 5 Alternatives) - Flowjam](https://www.flowjam.com/blog/stripe-atlas-vs-clerky-which-is-better-for-your-startup) - [Stripe Atlas review: flat $500 Delaware incorporation - FreeNetLaw](https://freenetlaw.com/llc/services/stripe-atlas/) - [14 Best LLC Services Compared (2026) - Pricing, Speed & Trust - StartupOwl](https://startupowl.com/start/best-llc-services) - [LLC Formation Services of 2026: Compare Top Online Options - Nav](https://www.nav.com/blog/company-formation-services-forming-an-llc-648318/) - [10 Best Stripe Atlas Alternatives for Startups in 2026 - Startup Savant](https://startupsavant.com/service-reviews/stripe-atlas-alternatives)

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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.