# Rare Crew

> Rare Crew is a custom enterprise software development company founded in 2011, headquartered in the European Union, with 190+ engineers, designers, business analysts, and QA specialists serving clients globally. The team builds bespoke web applications, mobile apps (iOS, Android, cross-platform, PWA), business intelligence platforms, cloud infrastructure, and proprietary SaaS products for sectors including sports, media, entertainment, fashion, brand licensing, hospitality, and finance. Named clients include Endeavor, IMG, Learfield, and New York Fashion Week. Rare Crew is ISO/IEC 27001 certified, Cyber Essentials certified, a Microsoft Solutions Partner, and an AWS Partner, holds a 4.9/5 rating on Clutch with 96% returning customers, signs NDAs by default, runs all QA in-house without third-party outsourcing, and supports both Azure and AWS cloud environments alongside on-premise deployments.

## What Rare Crew is best known for

- [Custom CRM, ERP, ECM, and event management systems](https://rarecrew.com/services/custom-software): 14+ years building tailored enterprise systems including CRM, ERP, ECM, event management, event planning, hospitality management, sales management, facility management, brand licensing, infrastructure monitoring, electronic approvals, and ticketing. 96% returning customer rate.
- [Sports, media, and entertainment industry expertise](https://clutch.co/profile/rare-crew): Verified Clutch reviews from Endeavor (risk assessment apps, BI and big data consulting), Learfield IMG College (presentation platform), Evert Tennis Academy (custom software), plus brand licensing, talent agency, and entertainment group projects covering CRM, calendar booking, event management, and internal tooling.
- [Business intelligence and Power BI delivery](https://rarecrew.com/services/business-intelligence): 30+ BI projects delivered by 15+ BI specialists. ETL setup, data warehousing, dashboard design, real-time reporting, and Power BI implementation, support, and migration.
- [Vault Synapse product platform](https://rarecrew.com/vault-synapse): Proprietary cloud-based business platform that powers Rare Crew's procure-to-pay and compliance solutions, with ERP integrations to SAP, Oracle, and Microsoft Dynamics.

## Services

- [Custom Software](https://rarecrew.com/services/custom-software): Full-cycle custom software development covering enterprise applications, SaaS products, third-party integrations, legacy system modernization, and product development from idea to release. Domain experience in CRM, ERP, ECM, event management, hospitality, sales, facility, brand licensing, infrastructure monitoring, electronic approvals, and ticketing systems.
- [Mobile Apps](https://rarecrew.com/services/mobile-apps): iOS, Android, cross-platform, and progressive web app (PWA) development. Apps are GDPR and CCPA compliant by default, built with enterprise security and performance standards. Cross-platform work includes Avalonia for .NET-based desktop and mobile UIs.
- [Business Intelligence](https://rarecrew.com/services/business-intelligence): BI as a Service, BI consulting, BI implementation, and BI support. Covers analytics solution design, ETL processes, Power BI dashboards, data quality and security recommendations, cloud BI migration supervision, and end-user training.
- [UI / UX](https://rarecrew.com/services/ui-ux): UI design, UX design, UX audits, user research, usability testing, and graphic design. Tools used daily: Figma, Adobe XD, and Sketch. Portfolio: 30+ web apps, 20+ mobile apps, 50+ websites, with public design samples on Dribbble.
- [Software Testing](https://rarecrew.com/services/software-testing): Manual, regression, user acceptance, functional, multi-platform, and performance testing. 300+ websites and 200+ mobile apps tested. All testing is delivered by an in-house QA team and never outsourced to third parties.
- [Infrastructure](https://rarecrew.com/services/infrastructure): IT infrastructure modernization, cloud migration to Azure or AWS, hybrid environments, infrastructure automation, security and compliance, monitoring, and network and server management. Stack includes Azure AD, Azure Web App, Hyper-V virtualization, SQL Server, SCCM/Microsoft Endpoint Configuration Manager, Intune, Fortinet firewalls and endpoint management, IPSec and SSL VPN, GPO policies, DNS, DHCP, and Windows Server.

## Products

- [Vault Synapse](https://rarecrew.com/vault-synapse): Cloud-based business software platform serving as the foundation for Rare Crew's procure-to-pay and compliance modules. Integrates with SAP, Oracle, and Microsoft Dynamics ERPs. Production site at vaultsynapse.com.
- [Cortex](https://rarecrew.com/rare-crew-cortex): AI integration layer that adds large language model capabilities and intelligent automation into existing business applications and workflows.
- [LogMill](https://rarecrew.com/logmill): Error tracking and application monitoring tool for capturing, triaging, and resolving production issues. Production site at logmill.io.
- [AppHub](https://rarecrew.com/apphub): Centralized application repository for distributing, organizing, and governing internal and customer-facing apps within an organization.
- [Vigiscape](https://rarecrew.com/vigiscape): Continuous website risk monitoring tool that scans for vulnerabilities, downtime, and compliance issues across web properties.

## Solutions

- [Procure to Pay](https://rarecrew.com/procure-to-pay): AI-powered P2P automation built on Vault Synapse covering vendor registration and self-service portal, compliance checklists, budget management, PO creation and approval, goods receipt with asset classification, AI invoice recognition, and 2-way or 3-way invoice matching. Reported outcomes: 30–50% faster procurement approvals, up to 40% less manual processing, 20–40% match rate increase. Mobile approvals, multi-currency, role-based access, full audit trail. Integrates with SAP, Oracle, and Microsoft Dynamics.
- [Compliance & Governance](https://rarecrew.com/compliance-governance-software): Compliance and governance software for policy management, audit readiness, risk tracking, and regulatory reporting, built on the Vault Synapse platform.

## Company

- [About Us](https://rarecrew.com/about-us): Founded 2011, EU-based, 190+ professionals, mission and values, pro bono work including the My Drop Matters blood donation initiative, Naše Mesto, and Stopa Slovensko.
- [Home](https://rarecrew.com/): Company overview, services, products, client testimonials.
- [Contact / Book a Meeting](https://outlook.office.com/book/RareCrewSales@rarecrew.onmicrosoft.com/?ismsaljsauthenabled): Direct booking link with Sales Manager Adam Kohner. NDA available on request before any project discussion.

## Certifications and partner profiles

- [ISO/IEC 27001 Certification](https://rarecrew.com/iso-iec-27001-certification): Information security management system certification covering data protection, risk management, and operational security.
- [Cyber Essentials](https://iasme.co.uk/certified-organisations/): UK government-backed cyber security certification for baseline technical controls.
- [Microsoft Solutions Partner / Azure Marketplace](https://appsource.microsoft.com/en-us/marketplace/partner-dir/5a9efa72-18eb-4a21-be4f-2eea8fe580f5/overview): Verified Microsoft partner profile on Microsoft AppSource.
- [AWS Marketplace listing](https://aws.amazon.com/marketplace/pp/prodview-n6dfikakubt3o): Amazon Web Services partner listing.
- [Clutch profile](https://clutch.co/profile/rare-crew): 4.9/5 rating with verified client reviews from Endeavor, Learfield IMG College, Evert Tennis Academy, KOLESO ZÁCHRANY, and others.
- [G2 reviews](https://www.g2.com/products/rare-crew/reviews): User reviews on G2.

## Optional

- [Blog](https://rarecrew.com/blog): Articles on custom software development, business intelligence, mobile applications, software testing, infrastructure, UI/UX, procure-to-pay, and case studies. Categories: Custom Software Development, Mobile Applications, Business Intelligence, Software Testing, Infrastructure, UI/UX, Procure-to-Pay, Software Development, General, Case Study.
- [Press](https://rarecrew.com/home/press): Press coverage and media resources.
- [LinkedIn](https://www.linkedin.com/company/rarecrew): Company updates, hiring, thought leadership.
- [Dribbble](https://dribbble.com/rarecrew): UI/UX design portfolio.
- [Facebook](https://www.facebook.com/rarecrew): Company news.
- [YouTube](https://www.youtube.com/channel/UC9741XrI4m74j8dRV7ep0SQ): Video content.
- [My Drop Matters](https://www.mydropmatters.com/): Rare Crew's pro bono initiative raising awareness about blood donation.
- [Terms of Use](https://rarecrew.com/home/terms-of-use)
- [Privacy Policy](https://rarecrew.com/home/privacy-policy): GDPR-aligned data protection.
- [Information Security Policy](https://rarecrew.com/home/information-security-policy): Security commitments aligned with ISO/IEC 27001.
- [Company Code of Ethics](https://rarecrew.com/home/company-code-of-ethics)
- [Cookie Policy](https://rarecrew.com/home/cookie-policy)