Enterprise IBNR Reserving Platform

Smart. Seamless. Reserving.

The enterprise IBNR platform that transforms how actuarial teams estimate, collaborate, and report on loss reserves. Built by actuaries, for actuaries.

5+
Actuarial Methods
Bank-Grade
Security
Cloud-Native
Deployment
Real-Time
Collaboration

A Complete Platform, Not Just a Tool

Everything you need to modernize your reserving workflow

Dashboard

At-a-glance view of all exercises with status indicators and quick actions

Exercise Manager

Create, finalize, and organize exercises by workspace

Triangle Analysis

Multi-segment analysis with outlier detection and flexible LDF selections

User Management

Invite team members, assign roles, and track all activity

Customised Reports

Export professional reports to Excel and PDF

Traditional Reserving is Broken

Spreadsheet Chaos

Version control nightmares, formula errors, and lost work plague traditional Excel workflows.

Siloed Teams

No visibility into who changed what, when. Team members work in isolation without real-time sync.

Manual Processes

Hours wasted on data formatting, manual calculations, and report generation every quarter.

Audit Anxiety

Scrambling to recreate analysis trails for regulators and auditors at year-end.

There's a better way.

Introducing Reserium

A purpose-built platform that brings structure, transparency, and actuarial rigor to your reserving workflow.

Single Source of Truth

All exercises, triangles, and selections in one secure location.

Complete Audit Trail

Every action logged automatically - who did what, when.

Role-Based Access

Owners, Admins, Members, and Viewers with granular permissions.

Enterprise Multi-Tenancy

Isolated company data with row-level security.

Triangle Analysis
AY1224364860
20191,2451,4561,5231,5671,589
20201,3891,6121,6981,745
20211,5021,7341,823
20221,6781,912
20231,823
LDF1.1681.0521.0291.0141.000
📊Chain Ladder

Everything You Need for Modern Reserving

Powerful tools designed specifically for actuarial workflows

Actuarial Reserving

Multiple Methods

Apply industry-standard actuarial techniques to your loss triangles.

  • Chain Ladder
  • Expected Loss Ratio
  • Bornhuetter-Ferguson
  • Cape Cod
  • Benktander
Triangle Analysis

Flexible Selections

Override any development factor with custom values. Full control over your analysis.

  • Per-column LDF selection
  • Cross-segment mirroring
  • Weighted averages
  • Outlier detection
Workflow

Exercise Organization

Group and manage your reserving exercises with intuitive structure.

  • By valuation date
  • Lines of Business
  • Multi-segment support
  • Workspace isolation
Controls

Finalization Controls

Lock segments and LOBs when analysis is complete to prevent accidental changes.

  • Segment-level locks
  • LOB finalization
  • Audit timestamps
  • Unfinalize support
Collaboration

Team Invitations

Invite colleagues with secure email links. Full role-based access control.

  • Email invitations
  • Role assignment
  • Permission levels
  • Activity tracking
Data

Easy Import/Export

Upload triangles from Excel. Export complete exercises with professional formatting.

  • Excel triangle import
  • Excel export with summary sheets
  • Multi-segment support
  • Portfolio-level exports

From Data to Decision in Four Steps

Get started in minutes, not days

1

Create Your Exercise

Set up the structure - define valuation date, accident year range, lines of business, and segments.

2

Upload Your Data

Import loss triangles from Excel. Drag-and-drop files with automatic column mapping and validation.

3

Analyze & Select

Apply actuarial methods, select LDFs per column, detect outliers, and review diagnostics.

4

Finalize & Report

Finalize segments, generate portfolio summaries, and export branded Excel reports.

Enterprise-Grade Security You Can Trust

Your sensitive actuarial data deserves the highest protection

End-to-End Encryption

AES-256 at rest, TLS 1.3 in transit

Row-Level Security

Data isolation between companies

Audit Logging

Complete trail of every action

Access Control

Role-based permissions everywhere

Infrastructure

Enterprise cloud with DDoS protection

Compliance Ready: Built with SOC 2, GDPR, and insurance regulatory requirements in mind.

Ready to Transform Your Reserving Process?

Join actuarial teams who have moved beyond spreadsheets to a modern, secure, collaborative platform.

Flexible plans for teams of all sizes — from small consulting practices to enterprise actuarial departments.