Comparative : WeeFin or in-house solution ?
Costs, compliance, scalability, support... Discover the strengths and limitations of each option to effectively manage your sustainability strategy.
Why WeeFin is the best alternative
to in-house development
In-house
solution
solution
Deployment & implementation
Calendar
Long design and testing periods (minimum 12 to 24 months). Complex multi-team coordination (IT, ESG, compliance). High risk of delays.
Quick implementation (a few months). Connectors already operational with the main ESG data sources and well-identified customer cases.
Compliance
Risk of falling behind with new obligations (CSRD, SFDR, SDR, taxonomy).
Ability to immediately integrate new regulatory requirements and anticipate changes and their impacts.
Risks of delay
High: technical complexity and significant risk of unavailability in the event of shift rotation.
Low: solution already tested and ready for use.
Budget
Costs
Heavy investment (development, integration, infrastructure, dedicated recruitment). Costs that can increase three or fourfold after six years.
Modular, transparent subscription costs tailored to your needs. Shared economies of scale. Up to 300% ROI.
Data control and governance
Governance
Full control over internal workflows and methodologies, but dependent on the availability of human and technological resources.
Shared and automated governance: quality controls, continuous data updates, detection of inconsistencies, archiving of all information. Clients retain ownership of their data and methodology.
Access to data
Choice of suppliers, but complex technical management. Access to data dependent on internal capabilities.
Existing feeds with over 50 private and public data providers.Creation of feeds with new providers in just a few weeks.
Security
Requires significant investment in cybersecurity.Increased risk of failure if under-invested.
International security standards (SOC 2).
Customisation & integration
Features
Fully customisable, aligned with internal strategies. But costly, inflexible and slow.
Modularity and flexible configuration (reports, indicators, methodologies). Ergonomic interfaces that can be adapted without involving IT. Continuous development of new features with the highest standards on the market.
Compatibility
Lack of flexibility: specific development required for the integration of each source or connection to an internal system.
Broad native compatibility (ESG data, financial data, internal systems). Connectivity-agnostic platform.
Flexibility and scalability
Scalability
Highly dependent on the bandwidth of IT teams. Difficulties in scaling certain features.
Scalable by nature (cloud, API). New metrics and regulations integrated regularly, often at no extra cost.
New features integration
Complex and time-consuming internal adjustments to incorporate regulatory or methodological changes.
Continuous updates included in the subscription, at no extra charge.
Support & maintenance
Maintenance
Updates and corrections carried out by internal teams, a time-consuming task.
Proactive maintenance, fixes and real-time upgrades provided by the supplier.
Accompagnement
Entirely dependent on internal resources. Costly and non-core business mobilisation.
Ongoing support with dedicated Customer Success, technical and regulatory expertise.
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