Cyber insurance for a SaaS startup — Coalition if your CTO buys, Chubb if your CFO buys.

The short answer

It depends on who's making the buying call at your startup:

• Your CTO has strong opinions — Go with Coalition. They bundle vulnerability scanning and incident-response that compounds with your engineering work.
• Your CFO needs enterprise-grade paper — Go with Chubb. AM Best A++ rating that procurement teams at Fortune-1000 customers will recognize on your insurance certificate.
• You're optimizing for premium — Try Coalition first, then Hiscox if Coalition declines. Both typically price under Chubb for early-stage SaaS, though premium varies by company.

Quote 2-3 carriers no matter which one you lean toward. The numbers that matter — covered below — are deductible, ransomware sublimit, and exclusions, not just premium. Get specific pricing from your broker; ranges vary widely.

What 2026 data says about SaaS cyber risk

The 2025 claims data from Coalition, At-Bay, Cowbell, and Resilience lands on the same general story: ransomware claims stabilized or dipped in frequency, but severity remains high and the claim mix has shifted in ways that matter for SaaS.

Ransomware. Coalition's 2025 Cyber Claims Report (covering full-year 2024) found ransomware severity fell 7% to an average loss of $292,000. Initial ransom demands dropped 22% to an average of $1.1 million — the lowest since 2022. At-Bay's 2025 InsurSec Report reached a similar place: average ransomware severity in 2024 was $468,000 across their book, with claims frequency up nearly 20% year-over-year as criminal groups returned to normal activity following a brief disruption. Cowbell's 2026 Claims Report — covering US cyber insurance claims through late 2025 — found ransom payments are down roughly 44% over several years, while US cyber claims volume rose 40%.

Business email compromise and financial fraud. BEC and funds transfer fraud together accounted for 60% of all Coalition claims in 2024. BEC severity rose 23% to an average loss of $35,000; when BEC led to a wire transfer, the average jumped to $106,000. Among Cowbell's book, cybercrime including BEC and phishing represented 31.8% of claims, making it the second-largest category. For SaaS startups specifically, the exposure is the combination: a compromised vendor email leads to a fraudulent invoice payment, and the attacker has learned the timing from reading your communications.

Supply-chain compromise. This is the fastest-growing SaaS-specific exposure. At-Bay reported indirect ransomware claim frequency rose 43% year-over-year in 2024. In Resilience's portfolio, vendor-related incidents represented 18% of total losses — the second-largest loss category. Chubb's 2026 Cyber Claims Report found that 65% of large companies now rank supply-chain vulnerabilities as their top cyber concern, up from 54% the prior year. For SaaS startups, this translates directly: the cloud infrastructure provider, the CI/CD toolchain, the identity provider, or the payment processor are all third-party attack surfaces that sit inside your customer contracts.

Social engineering. Cowbell's 2026 report flags AI-enhanced social engineering as an accelerating threat — phone-based impersonation, deepfake video calls, and business email compromise that now bypasses legacy email-security filters. Remote access tools were the initial entry vector for 80% of ransomware claims in At-Bay's book.

Coalition vs Chubb — operational differences

Coalition is a cyber-native MGA writing through admitted markets and Lloyd's, founded in 2017. Strengths: continuous threat-monitoring integrated with the policy (vulnerability scanning, dark-web credential monitoring, attack-surface mapping), an incident-response retainer with named external firms, founder-friendly buying experience that doesn't require a 6-week broker dance. Weaknesses: shorter operational track record than a tier-1 P&C carrier, smaller direct paper.

Chubb is a tier-1 global P&C carrier (AM Best A++). Strengths: paper depth that any counterparty CFO recognizes, broad claims-handling track record across decades, traditional broker-mediated buying motion (positive at scale but slower for early-stage). Weaknesses: less SaaS-engineering-specific tooling, no continuous monitoring built into the policy. Chubb's 2026 Cyber Claims Report found average US breach costs exceeded $10.2 million in 2025 across their large-account book — a reminder that their paper backs meaningful limits.

Coalition is typically a bit cheaper for early-stage SaaS — but the operational difference matters more than the premium delta.

Other carriers worth a quote

A real buying motion includes 2-3 quotes. After Coalition + Chubb, the legitimate third options:

• At-Bay — closest direct competitor to Coalition. Similar cyber-native MGA structure, similar product depth. Their 2025 InsurSec Report is the most detailed public claims dataset on mid-market cyber risk.
• Resilience — security-engineering-anchored similar to Coalition. In their 2025 Cyber Risk Report, data-theft-only attacks accounted for 57% of all incidents in their portfolio — relevant for SaaS with sensitive customer data but strong backup practices.
• Hiscox — UK-anchored, broad US small-business cyber book. Often cheaper for smaller SaaS without complex enterprise contracts.
• Beazley — Lloyd's-syndicate cyber specialist. Strongest in regulated-vertical SaaS (healthcare, fintech, education).

What to skip: AIG, CNA, The Hartford. These have cyber products but they're built for manufacturers and law firms, not SaaS startups. They'll quote you but the policy structure won't fit.

The SOC 2 and ISO 27001 pressure from underwriters

One thing that has quietly changed: underwriters now treat compliance attestations as underwriting evidence, not just marketing material. By 2025–2026, the standard cyber application for a SaaS company runs 70 to 100 questions, and carriers are asking for artifacts — not just yes/no checkboxes.

In practice: if you have SOC 2 Type II, bring the report. If you have ISO 27001 certification, bring the certificate. If you have neither, some underwriters — particularly at larger limits — will price that gap into the premium or narrow coverage. The companies that get the best terms are the ones that can hand over the documentation immediately. Coalition and At-Bay, because they also provide security tooling, can see your posture directly; that continuous monitoring partly substitutes for the certification. Chubb's application relies more heavily on what you self-attest.

For a pre-Series-A SaaS that hasn't done SOC 2 yet, this doesn't kill the quote — but it matters at renewal. The underwriting creep is real: controls that were optional in 2022 are standard questions in 2026.

What to actually negotiate

Premium is the headline number every founder optimizes; it's rarely the binding constraint. Four things matter more:

1. Self-insured retention (SIR). The deductible-equivalent for cyber. A policy with a $100K SIR is materially different from one with a $25K SIR, even at similar premium. Push for the lowest SIR your budget allows.

2. Ransomware sublimit. Most cyber policies cap ransomware payment + business interruption at a sublimit, not the policy aggregate. Verify the limit matches plausible exposure. Given that average ransomware severity across MGA books ran $292K–$468K in 2024, a low ransomware sublimit is a real gap.

3. Business interruption waiting period. Cyber policies have a waiting period before BI coverage kicks in. For SaaS where an outage costs material revenue, push for a shorter waiting period — some carriers allow this for additional premium.

4. Specific exclusions. Read them. Common gotchas: bodily injury exclusion, war exclusion (broader than you'd think — verify the language), unencrypted-data exclusion (some policies require encryption-at-rest to maintain coverage). Supply-chain exclusions are increasingly common — check whether a vendor outage that triggers your BI is actually covered.

A broker who can't walk you through these is the wrong broker.

What to do as a founder

1. Decide what you're optimizing for before talking to any carrier. CTO-driven? CFO-driven? Lowest premium?
2. Get quotes from 2-3 carriers matched to your optimization: Coalition + Chubb + one of (At-Bay, Hiscox, Beazley).
3. Use a tech-aware broker. Founder Shield, Embroker, Vouch, Newfront, Woodruff Sawyer all serve SaaS specifically. The broker filters carriers and negotiates terms.
4. Negotiate SIR, sublimits, and exclusions — not just premium.
5. Re-quote annually. Cyber pricing is volatile. Multi-year deals rarely pay back.
6. Prep your compliance artifacts before the application. SOC 2 Type II, ISO 27001, MFA documentation, vendor risk management evidence — underwriters now ask for the artifact, not just the attestation.

Adjacent reading

• Best cyber insurance for a fintech startup — adjacent vertical with different regulatory exposure
• Best cyber insurance for a healthcare SMB — adjacent vertical, HIPAA-aware
• Best D&O insurance for a fintech startup — adjacent coverage layer
• Coalition rising in commercial cyber — why Coalition has been gaining ground in cyber recommendations