# Castle

> Castle is a company spend management platform that optimizes insurance premiums and software costs for startups, growth-stage companies, and venture funds. We help companies save up to 63% on insurance and unlock exclusive software discounts — at no cost.

## Pages

- [Home](/): Overview of Castle's spend management platform for insurance and software.
- [For Startups](/for-startups): Insurance and software cost optimization for pre-seed through Series C startups.
- [For Funds](/for-funds): Portfolio-wide insurance and spend management for venture funds.
- [For SMB](/for-smb): Spend management for small and medium-sized businesses.
- [For Real Estate](/for-real-estate): Insurance and COI compliance for property management firms.
- [For Investors](/for-investors): How Castle works with investors and portfolio companies.
- [Discounts](/discounts): Exclusive software discounts available to Castle clients (45+ partners).
- [Get Started](/get-started): Request a custom savings plan from the Castle team.
- [About](/about): The Castle team — alumni of Goldman Sachs, Apollo, Marsh, and Google.
- [The Castle Difference](/castle-difference): How Castle compares to traditional brokers and consultants.

## Blog

- [Blog index](/blog): Insights on insurance, fundraising, and capital efficiency for startups.
- [What is Burn Rate?](/blog/burn-rate-discipline): The startup discipline guide to managing cash spend and runway.
- [What is Default Alive?](/blog/capital-discipline-efficiency): Y Combinator framework for capital efficiency and burn multiple.
- [What is D&O Insurance?](/blog/do-insurance-growth-startups): Directors & Officers coverage guide for growth-stage startups.
- [What is Cyber Insurance?](/blog/cyber-insurance-saas-startups): Cyber liability coverage guide for SaaS startups.
- [Series A Insurance Requirements](/blog/series-a-insurance-requirements): Investor coverage minimums for D&O, cyber, and general liability.
- [What is E&O Insurance for SaaS?](/blog/eo-insurance-saas): Errors & Omissions coverage for software companies.
- [Top Software Discounts for Startups](/blog/software-discounts-startups): AWS, Stripe, Notion, HubSpot programs and more.
- [Insurance Benchmarks](/blog/insurance-benchmarks): What startups should pay for insurance by stage.

## Case Studies

- [Finley (Series A)](/case-studies/finley): How a YC W21 fintech streamlined renewals with Castle.
- [Daloopa (Series B)](/case-studies/daloopa): Growth-stage insurance overhaul.
- [Coris.ai (YC S22)](/case-studies/coris): $15K saved across insurance and software for an AI fintech.
- [Inverted Capital](/case-studies/inverted-capital): How a venture fund standardized portfolio coverage.

## Optional

- [Privacy Policy](/privacy): Data handling and privacy practices.