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Insurity vs OneShield Software — Policy administration for US insurance, 2026.

Insurity (12 named carriers) and OneShield Software (5 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

  • Insurity has 12 publicly-named carrier deployments; OneShield Software has 5. Both at the policy administration layer.
  • Zero customer overlap in the public roster. Insurity and OneShield Software 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, 1 only Insurity, 0 only OneShield Software.

Customer overlap

BucketCount
Named on Insurity only12
Named on OneShield Software only5
Named on both0
of which US-named on at least one side0

Only on Insurity

  • Zurich North America (US)
  • N2G Worldwide Insurance Services (US)
  • McKee Risk Management (US)
  • Orbis Risk Partners (US)
  • AmeriTrust (US)
  • Amerisure (US)
  • Victory Insurance (US)
  • Waypoint Mutual (US)
  • Juniper Re (US)
  • OSC Insurance Services (US)
  • Georgia Stern Insurance Agency (US)
  • UBIC (US)

Only on OneShield Software

  • Privilege Underwriters Reciprocal Exchange (PURE) (US)
  • HAI Group (US)
  • Accident Insurance Company (AIC) (US)
  • Forrest T. Jones & Company (US)
  • Falcon Risk Services (US)

Counts derived from 18sourced carrier-deployment entries across both vendor cards. Aggregate-only statements (e.g. “16 of the top 20”) excluded.

Stack position

Insurity
Generation
modern
Stack layer
Policy administration
Founded
1985
Lines
auto, home, commercial, workers-comp, specialty
Replaces
mainframe policy admin, in house policy admin
OneShield Software
Generation
modern
Stack layer
Policy administration
Founded
1999
Lines
auto, home, commercial, workers-comp, specialty

Ownership and corporate context

Insurity
Type
private-equity
Parent
GI Partners
Acquired
2019

Source: GI Partners

OneShield Software
Type
private-equity
Parent
Parker-led search fund; Bain Capital Credit and Pacific Lake Partners anchor investors
Acquired
2020

Source: Bain Capital

Carrier-segment specialization

Insurity — geographic split

  • US
    12

OneShield Software — geographic split

  • US
    5

Analyst coverage differential

Both covered by
  • Celent · Insurity (2023: Policy Administration Systems: P&C Insurance, North America Edition (vendor universe of 19 systems including Insurity)) · OneShield Software (2024: OneShield Software — vendor directory and VendorMatch solutions)
Only Insurity cited by
  • Novarica (2021: Insurity's Insurance Decisions Suite, Bridge Specialty Suite, Workers' CompXPress, and InsuranceEnterprise All Earn Top Marks in the 2021 Novarica Market Navigator Report for Property & Casualty Policy Administration Systems)

Recent news (last 12 months)

No news items in the last 12 months for either tool.

Sourced limitations

Insurity
  • Insurity is not plug-and-play; implementations typically require a third-party systems integrator, and budget planning must include data migration and ongoing support alongside the core license — these usually make up a significant share of first-year spend.
    Source: Nerdisa
  • Insurity's presence in Celent's 2023 North America P&C policy administration report placed it among 19 profiled vendors; the three XCelent awards (Advanced Technology, Breadth of Functionality, Customer Base and Support) went to Guidewire PolicyCenter that cycle.
    Source: Business Wire
OneShield Software
  • Smaller systems-integrator ecosystem than the tier-1 P&C cores. The implementation-partner bench for OneShield is narrower than the Guidewire and Duck Creek ecosystems; carriers needing specific tier-1 reinsurance or global-treaty surfaces will typically still choose Guidewire.
    Source: Celent
  • Customer mix skews toward MGAs, specialty carriers, and workers' comp writers by design. The named roster does not include top-10 national P&C carriers; OneShield Market Solutions specifically targets MGAs with sub-$100M GWP — a segment Guidewire does not economically serve.
    Source: Celent

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 Insurity and OneShield Software?
Not in Phidea's public roster. Across 17 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 Insurity and OneShield Software?
Insurity is PE-owned (GI Partners). OneShield Software is PE-owned (Parker-led search fund; Bain Capital Credit and Pacific Lake Partners anchor investors).
Which has more named US carriers?
Insurity has the larger publicly-named US roster: Insurity 12, OneShield Software 6. 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. Insurity replaces mainframe policy admin, in house policy admin; OneShield Software operates as a standalone vendor.

Adjacent reading