Colosseus Consult

What Colosseus Consult does

Colosseus Consult BV is a Dutch boutique consultancy founded in 2004 and headquartered in De Meern (Utrecht), Netherlands, providing specialized services to pension funds, pension executors (uitvoerders), and life insurers in the Dutch market. The firm operates with approximately 20 consultants and delivers four interlocking service lines: data migration between administration systems, data quality control and claims recalculation, system implementation support, and automated model-based testing of pension administration software. Its customer base includes PGGM, PGB Pensioendiensten, Lifetri, Goudse Verzekeringen, Waard Verzekeringen, Achmea Pensioen Services, AZL, TKP, DION Pensioen Services, and several other Dutch insurers and pension funds, with engagements often tied to the Wtp (Wet Toekomst Pensioenen) transition and invaren conversions. Colosseus describes itself as delivering a complete project package rather than staff augmentation, combining domain expertise with purpose-built technology.

The company's technical core is the proprietary Colosseus Data Platform (CDP), an in-house-developed configurable suite for extraction, data quality control, data cleaning/enrichment, transformation, loading, reporting, and audit trails. CDP stores business rules in configuration files rather than in code, enabling rapid changes during migration projects without developer involvement, and includes an Automated Migration Street, a Control Framework that compares initial and final states, and the QuickScan/Claims Module for full-population pension claims recalculation. Since 2023, Colosseus has offered automated model-based testing through a strategic partnership with Axini, using the Axini Modelling Platform (AMP) to generate, execute, and control test cases from requirements and system specifications, deployed at clients including TKP, Stichting Pensioenfonds Campina, Visma, and Achmea. CDP is held as part of an integrated delivery model rather than as a standalone licensed product.

Colosseus generates revenue primarily through professional services — fixed-scope/consultancy engagements for Dutch pension and insurance clients, sold via direct senior-consultant engagement in a B2B enterprise model with no public pricing. Revenue is supplemented by CDP licensing/usage economics embedded within those engagements. The company is ISO 9001 certified and emphasizes a flat, expert-driven organization. In January 2026 Colosseus was acquired by Belgium-headquartered The Ensur Company, becoming part of its 'House of Brands' ecosystem while retaining its own brand, leadership (co-founders Marco de Groot and Bo Besters), and operating identity; Colosseus Solutions, the sister-company software entity, remained independent of the acquisition.

Name

Colosseus Consult

Legal name

Colosseus Consult BV

Website

https://colosseus.nl

Company type

Private

Founded year

2004

Operating status

Operating

Headcount range

11–50 employees

Short description

Colosseus Consult BV is a Dutch boutique consultancy, founded in 2004 and headquartered in De Meern, that delivers data migration, data quality, system implementation, and automated testing services — underpinned by its proprietary Colosseus Data Platform — to Dutch pension funds, pension executors, and life insurers navigating the Wtp transition.

Ownership category

akta.pro rank

Headquarters

HQ city

Meern

HQ country

Netherlands

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Technology or R&D, Operations, Marketing or Sales, Infrastructure

Revenue model

1. Consultancy Services: Colosseus provides consultancy services including data migrations, data quality assessments, system implementations, automated testing, process automation, and interim staffing for pension funds, life insurers, and pension executors. Services are delivered by experienced consultants in roles including actuary, actuary analyst, tester, business analyst, information analyst, and functional tester.
2. Proprietary Software Licensing/Usage: Colosseus Data Platform (CDP) is proprietary software developed in-house since 2012. The software is used to support the consultancy service delivery, providing clients with data migration, quality, and process management capabilities. Revenue is generated as part of integrated consultancy engagements rather than standalone software licensing.

Go-to-market motion2 records

Distribution channels1 record

Marketing channels5 records

Core offering

Colosseus Consult B.V. is an independent Dutch consultancy delivering data migrations, data quality assessments, system implementations, automated testing, process automation, and interim consulting for pension funds, life insurers, and pension executors. The firm operates its own proprietary software platform, the Colosseus Data Platform (CDP), which supports these engagements with configurable data migration, profiling, validation, business rules, and audit-trail capabilities for the Dutch pension and insurance market.

Product overview

Colosseus Consult operates as an independent consultancy bureau with 100% focus on pensions and insurance, offering both proprietary software and consulting services. Its core product is the Colosseus Data Platform (CDP), a configurable software suite for data migrations, data quality control, and process management. Around CDP, Colosseus delivers a portfolio of services including data migration execution, data quality assessment (QuickScan), automated model-based testing (via Axini partnership), system implementation support, process automation, and interim consulting. CDP serves as the unifying technology underlying multiple services, enabling the company to offer both software-enabled engagements and pure consultancy.

Differentiator

Problem solved

Functional benefit

Brands

• Colosseus DataPlatform (CDP): Proprietary software platform developed in-house for data migration, data quality, and process management in the pension and insurance sector.

Products and services

• Colosseus Data Platform (CDP) Proprietary, fully configurable software platform for data migration, data quality control, and process management in the pension and life insurance sector. Supports extraction, data quality control, cleaning and enrichment, transformation, target system loading, commercial migration, reporting, and audit trails, with business rules configured in configuration files rather than code so changes require no developer involvement.
• Data Migration Services End-to-end migration services transferring data between administration systems for insurers and pension executors, including extraction, data validation, cleaning and enrichment, transformation, commercial migration, target system loading, and reporting, with a full audit trail and reproducible results.
• Data Quality Services Data control and analysis services ensuring accurate and complete participant data for pension administration, including plausibility checks, completeness controls, logical validations, and full claims recalculation via the in-house claims module.
• QuickScan Data Profiling Service Rapid data analysis and profiling service for pension funds, comprising critical data element (KDE) analysis and full claims recalculation. Designed to support the 'get clean' phase before invaren and the 'stay clean' phase of ongoing pension administration.
• System Implementation Services Business analyst and consulting support for implementing new pension administration systems, bridging the gap between insurer requirements and vendor capabilities, including requirements detailing, architecture alignment, and configuration support.
• Automated Testing (Model-Based Testing) Services Full automated testing of pension administration systems using the Axini Modeling Platform (AMP). Test cases are automatically generated, executed, and controlled based on modeled requirements and system specifications, covering business rules, calculation rules, and entire administration systems including regression testing.
• Process Automation Services Automation of operational pension processes including UPO (Uniform Pensioenoverzicht), URM (Uniforme Rekenmethodiek), forecast calculations, excasso, Pensioen 123, and Model de Ruijter, enabling compliant and efficient process execution.
• Interim Consulting Services Provision of senior consultants in roles including actuary, actuarial analyst, tester, business analyst, information analyst, and functional tester for pension and insurance sector projects, delivered as embedded resources within client teams.

Quantifiable outcome

• Over 3 million policies and millions of participants migrated across more than 20 migration projects
• +3 more outcomes

Named customers18 records

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration1 record

Feature7 records

Partnerships

Four partnerships are on record, tiered core and flagship.

• AxinicoreTechnology or Integration · 1 January 2023Colosseus and Axini formed a strategic partnership to broaden their joint service offering. Axini provides its Axini Modelling Platform (AMP) for model-based testing, which Colosseus uses to automatically generate, execute, and control test cases based on requirements. Colosseus uses Axini's platform for both automated testing of pension administration systems and for scaling its claims recalculation module. The partnership adds model-based testing capabilities to Colosseus's services.
• LifetriflagshipStrategic or Co-development Partner · 1 January 2022Lifetri and Colosseus entered a partnership in 2022 to jointly migrate three pension portfolios to the VIPS Pension administration platform. The migrations were highly successful with no participant disruption. Both parties decided to continue the partnership to execute future migration trajectories together. Colosseus provides its CDP migration tool and data quality expertise while Lifetri provides the pension administration platform and takes over pension obligations.
• The Ensur CompanycoreStrategic or Co-development Partner · 1 January 2021Ensur NL was established in 2021 as a joint venture between The Ensur Company (Belgium) and Colosseus. The partnership combined Ensur's transformation expertise with Colosseus's data quality and migration specialization in the Dutch market, bringing ~70 employees to the joint venture. Colosseus sold its stake in Ensur NL to The Ensur Company, which now fully owns Ensur NL. Colosseus Consult itself was subsequently acquired by The Ensur Company in January 2026, making it a subsidiary under The Ensur Company's 'House of Brands' strategy.
• The Ensur Company (Parent)coreStrategic or Co-development PartnerThe Ensur Company acquired Colosseus Consult in January 2026. Under the 'House of Brands' strategy, Colosseus Consult retains its own character, brand, and team while gaining access to The Ensur Company's broader European capabilities. Colosseus Solutions (sister company focused on pension software) is not part of the acquisition and continues independently.

Scale indicators6 records

Recent moves9 records

Expansion highlights6 records

Direct peers

• Ortec Finance: Dutch-headquartered provider of decision-support software, analytics, and consulting for pension funds and insurers. Directly comparable on actuarial calculations, ALM, and pension data analytics, and a primary competitor for pension analytics and data quality engagements.
• The Ensur Company: Parent company and strategic partner since the January 2026 acquisition; a Belgian-Dutch consultancy group (~140 experts) specializing in transformation and implementation for the insurance and pension sector — directly comparable in offerings and customer base, now encompassing Colosseus under its 'House of Brands'.

Broad incumbents

• PwC: Big-4 consultancy with a Dutch pensions practice advising on Wtp implementation, data migration, and regulatory compliance. Overlaps with Colosseus on enterprise pension transformation work.
• Mercer: Global consulting leader with a substantial Dutch pension and benefits practice. Overlaps with Colosseus on pension administration transformation, data migration, and Wtp advisory, but competes from a much broader portfolio.
• Deloitte: Big-4 firm with a Dutch pension and insurance transformation practice. Competes for Wtp advisory and large-scale migration programs, leveraging broader consulting capabilities but lacking Colosseus's pure-play specialist focus.
• Lane Clark & Peacock (LCP): UK-headquartered actuarial and pension consultancy expanding into the Netherlands. Comparable on pension data analytics, actuarial services, and scheme transformation work tied to Wtp.
• Milliman: Global actuarial and consulting firm with deep European pension expertise. Comparable on actuarial recalculation, pension data quality, and system migration advisory, though it operates at much larger scale across multiple geographies.
• KPMG: Big-4 firm with Dutch pension advisory and actuarial capabilities. Competes for Wtp transition mandates and pension administration transformation projects at large Dutch funds.
• Aon: Global professional services firm with a strong Dutch retirement and investment consulting practice. Competes with Colosseus on pension data, actuarial, and administration transformation engagements in the Netherlands.

Emerging players

• Colosseus Solutions: Independent sister company focused on pension software and technological solutions, excluded from the Ensur acquisition. Closely related product set targeting the same Dutch pension market but with a software-led rather than services-led model.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/ColosseusBV
• LinkedInlinkedin.com/company/colosseus-consult-b.v.

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Subsidiaries1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Colosseus Consult