# Selleris > B2B CRM implementation and consulting agency. Vendor-neutral across Microsoft Dynamics 365, HubSpot, and Bitrix24 — we recommend the platform that fits the client's business, not the one that pays the highest commission. Delivery is outcome-based: every task is scored for projected ROI and priced fixed before approval, so the client carries no financial risk during execution. ## Core services - [CRM Implementation](https://selleris.com/crm-implementation): Full-cycle deployment and configuration of Microsoft Dynamics 365, HubSpot, and Bitrix24, tailored to the client's sales process. - [Methodology](https://selleris.com/methodology): Task-level ROI scoring and fixed-price, outcome-based contracts. Each task gets an estimated business benefit, delivery cost, and projected ROI before approval; tasks are prioritized by ROI ratio. - [Custom Development](https://selleris.com/custom-development): Client portals, AI agents, and web and mobile applications built on the Microsoft Azure ecosystem to solve problems off-the-shelf software cannot. - [CRM Migrations](https://selleris.com/migrations): Data migration between CRM platforms without losing history, including Salesforce-to-HubSpot transitions. ## Products - [Selleris Connect](https://selleris.com/selleris-connect): Proprietary client portal that operationalizes ROI-based delivery — surfacing high-ROI tasks and tracking scope, acceptance criteria, and progress. - [Selleris Insight](https://selleris.com/selleris-insight): Business intelligence and analytics product. ## Infrastructure - [Infrastructure Management](https://selleris.com/infrastructure-management): Ongoing maintenance, security patches, and performance tuning for business-critical systems. Selleris hosts only applications it builds and maintains. - [Bitrix24 On-Premise Hosting](https://selleris.com/bitrix24-on-premise-hosting): Dedicated managed servers for self-hosted Bitrix24 with full admin access, setup, updates, and performance tuning. - [Azure App Hosting](https://selleris.com/azure-app-hosting): Web application hosting on Microsoft Azure with managed deployment, scaling, and 24/7 monitoring. - [Storage & Backups](https://selleris.com/storage-backups): Automated backups, redundant storage, and fast recovery for business data. ## Contact - [Contact](https://selleris.com/contact): Get in touch with the Selleris team. - [Book a call](https://selleris.com/book-a-call): Schedule a discovery call to scope a CRM or custom development project. ## Legal - [Privacy Policy](https://selleris.com/privacy) - [Terms of Use](https://selleris.com/terms)