EIS Group vs One Inc — Policy administration for US insurance, 2026.
EIS Group (12 named carriers) and One Inc (16 named carriers) both sit at the policy administration layer. Zero customer overlap in the public roster — they are addressing different segments of the same stack layer.
Last verified 2026-04-22 · methodology
TL;DR
- EIS Group has 12 publicly-named carrier deployments; One Inc has 16. Both at the policy administration layer.
- Zero customer overlap in the public roster. EIS Group and One Inc are addressing different carriers within the same stack layer.
- Both classified modern on Phidea's generation axis.
- Both private-equity ownership.
- Analyst coverage: 1 firm cover both, 2 only EIS Group, 0 only One Inc.
Customer overlap
| Bucket | Count |
|---|---|
| Named on EIS Group only | 12 |
| Named on One Inc only | 16 |
| Named on both | 0 |
| of which US-named on at least one side | 0 |
Only on EIS Group
- CSAA Insurance Group (US)
- Desjardins General Insurance Group (CA)
- AIG Canada (CA)
- Tokio Marine & Nichido Fire (JP)
- Liberty Mutual Benefits (US)
- Wellfleet Insurance (US)
- Industrial Alliance Auto and Home (CA)
- AMI Insurance (NZ)
- Atlantic American Employee Benefits (US)
- Renaissance Life & Health Insurance Company of America (US)
- Reliance Standard (US)
- Tower Insurance (US)
Only on One Inc
- Arbella Insurance Group (US)
- GoAuto Insurance (US)
- Mutual Benefit Group (US)
- The Philadelphia Contributionship (US)
- MAPFRE Insurance (US)
- Mountain West Farm Bureau (US)
- Penn National Insurance (US)
- Virginia Farm Bureau Insurance (US)
- Columbia Insurance Group (US)
- Brethren Mutual (US)
- Grange Insurance (US)
- National Indemnity Company (US)
- …and 4 more on the vendor card.
Counts derived from 28sourced carrier-deployment entries across both vendor cards. Aggregate-only statements (e.g. “16 of the top 20”) excluded.
Stack position
Ownership and corporate context
Carrier-segment specialization
Analyst coverage differential
Both covered by
- Celent · EIS Group (2025: Celent 2025 P&C Policy Administration Systems Report — EIS named Technology Standout (NA and EMEA)) · One Inc (2025: Behind the Wheel of Trust: How Auto Claims Shape Customer Loyalty (One Inc ClaimsPay commissioned Celent research))
Only EIS Group cited by
- Gartner (2021: Gartner Magic Quadrant for Life Insurance Policy Administration Systems, North America — EIS positioned as a Leader)
- TPG (2021: Insurance Technology Leader EIS Announces Growth Investment of More than $100 Million from TPG)
Recent news (last 12 months)
No news items in the last 12 months for either tool.
Sourced limitations
- Many EIS customer references are hosted on EIS's own site or blog rather than third-party case studies. AIG Canada and AMI Insurance are traceable to Celent Model Insurer write-ups; Desjardins, CSAA, Tokio Marine, Wellfleet and Liberty Mutual Benefits references originate from EIS press releases and case studies. Absolute customer count and revenue are not publicly disclosed.Source: EIS Group
- One Inc is a US-only insurance payments network; there is no documented European or UK carrier footprint, and pricing/terms are not publicly disclosed — carriers procure via direct sales rather than self-serve onboarding that generalist processors (Stripe, Adyen) offer.Source: One Inc
- The platform depends heavily on banking and wallet partners (J.P. Morgan Payments, U.S. Bank, PayPal/Venmo, Apple Pay, Google Pay) for rails; carriers adopting One Inc inherit this dependency stack rather than running direct processor relationships.Source: Business Wire
Limitations published on Phidea are sourced to the underlying citation and reflect what is publicly named — not an exhaustive list. Consult the vendor card for the full record.
Frequently asked
- Do any carriers run both EIS Group and One Inc?
- Not in Phidea's public roster. Across 28 sourced carrier-deployment entries on both vendor cards, zero carriers appear on both. The two tools are addressing different carriers within the same stack layer.
- Who owns EIS Group and One Inc?
- EIS Group is PE-owned (TPG (growth investor)). One Inc is PE-owned (Great Hill Partners (with Nordic Capital co-investor since 2024)).
- Which has more named US carriers?
- One Inc has the larger publicly-named US roster: EIS Group 7, One Inc 16. Public-roster size is a coverage signal, not a quality signal — vendors with stronger NDAs may have larger actual US footprints than the public count shows.
- Where are these tools positioned in the insurance stack?
- Both sit at the policy administration layer. EIS Group operates as a standalone vendor; One Inc replaces paper check disbursement, generic payment gateway.