What Sarastia does

Sarastia is a Finnish management consultancy and service center operator providing outsourced financial management, payroll, HR, software, and adjacent public sector services to municipalities, cities, welfare areas (hyvinvointialueet), and municipal companies. The company positions itself as a long-term continuity partner during Finnish public sector structural change, including the health and social services reform that created welfare areas. Its service model is dual-track: a Service Center (fully outsourced managed services) and a Software Service (Sarastia365 with Sarastia as system administrator). Sarastia365 is the proprietary product family built on Microsoft Dynamics 365, comprising financial management (Talous), HR management (HR), reporting, and materials management modules. The customer experience layer is the OmaSarastia portal, built on ServiceNow, providing 24/7 case submission, attachment handling, and tracking. Additional services integrate Epassi (employee benefits), Visma Sign (e-signature), WPro (occupational safety), and support Raindance Kuntamallin, Netvisor, and SAP for clients with non-Microsoft stacks.

Commercially, Sarastia does not publish pricing; customers contact sales directly. At operational scale, the company processes approximately 1.4 million purchase invoices and 2.5–2.6 million sales invoices annually, prepares ~80 financial statements and 40 consolidated financial statements, and employs approximately 200 financial experts. Headcount was historically 501–1,000. The business was acquired by Administer Group on April 1, 2026 (deal value ~EUR 58 million, ~490 employees transferred), with operations continuing under the Sarastia brand. The company holds Taloushallintoliiton auktorisointi (Finnish Financial Management Association authorization) and is GDPR-compliant, providing regulatory credibility in the public sector.

The company was originally incorporated as Sarastia Oy, legally renamed Numera Palvelut Oy in September 2024 amid a group-wide brand renewal, then re-established as a new Sarastia Oy under Administer Group ownership from April 1, 2026. Customer relationships are characterized by long-term partnerships (e.g., Kerava, Kirkkonummi, Kajaani, Nurmes, Riihimäki, Kangasala), with go-to-market executed via dedicated customer directors and customer managers serving public sector procurement processes. Distribution is exclusively domestic (Finland), and the operating geographies are national only.

Name

Sarastia

Legal name

Sarastia Oy

Website

https://sarastia.fi

Company type

Private

Founded year

2019

Operating status

Operating

Headcount range

501–1,000 employees

Short description

Sarastia provides outsourced financial management, payroll, HR, and software services to Finnish municipalities, cities, and welfare areas via its Sarastia365 platform (built on Microsoft Dynamics 365) and the OmaSarastia (ServiceNow) customer portal. The company became part of Administer Group on April 1, 2026.

Ownership category

akta.pro rank

Product category

Public Sector Financial Management Services

NAICS

Accounting, Tax Preparation, Bookkeeping, and Payroll Services (54121), Office Administrative Services (5611), Office Administrative Services (56111), Computer Systems Design and Related Services (54151), Business Service Centers (56143)

SIC

Finance Services (6199), Services-Computer Processing & Data Preparation (7374), Services-Computer Programming, Data Processing, Etc. (7370), Services-Management Services (8741)

akta.pro primary industry

Financial Planning & Analysis Support (Budgeting, Forecasting, Management Reporting) (BPAAAGAJ)

akta.pro secondary industries

Business Process-Aligned IT Outsourcing (ITO + BPO Integrated) (BPAEAMAJ), Service Desk & ITSM Outsourcing (BPAEAMAF), Service Desk & Help Desk Services (BPAEAJAA)

Keywords

• Public sector financial management
• Municipal payroll services
• Government accounting software
• HR management solutions
• Welfare area services

Headquarters

HQ city

Hämeenlinna

HQ country

Finland

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Service Center Model (Outsourcing): Services are outsourced to Sarastia, where the customer is only responsible for implementing agreed-upon procedures. Sarastia handles the entire financial or payroll process from start to finish.
2. Software Service Model: Customers receive a system and training for its use. Sarastia always functions as the system administrator and provides ongoing support.
3. Basic Financial Services: Budgeting and reporting templates, accounting, fixed asset accounting, payment traffic, sales invoice recording, sales ledger, purchase and sales invoice information services, purchase invoice routing, purchase ledger, financial data reporting to State Treasury, financial statements and consolidated financial statements, and system administrator tasks.
4. Additional Financial Services: Cash planning, municipal certificate tendering, sales invoicing in customer's pre-system, purchase invoice coding, service fund administrator duties, electronic archiving, accounting services for limited companies, and other agreed additional services.
5. Additional HR and Payroll Services: HR system add-ons, employee benefit management system Epassi, travel expense processing, electronic signing, electronic archiving, working time and workforce management, occupational safety solutions, HR customer service.

Go-to-market motion2 records

Distribution channels4 records

Marketing channels6 records

Core offering

Sarastia provides outsourced financial management, payroll, and HR services to Finnish municipalities, cities, welfare areas, and municipal companies, complemented by the Sarastia365 software product family built on Microsoft Dynamics 365. Services are delivered through either a Service Center Model (full outsourcing where Sarastia handles the entire process) or a Software Service Model (customer-operated with Sarastia as system administrator). The offering combines standardized financial processes, payroll calculation, HR management, reporting, and the OmaSarastia customer portal for 24/7 service handling.

Product overview

Sarastia operates as a unified product and service company offering financial management, payroll services, and software solutions for the Finnish public sector. The core product family is Sarastia365, a platform-based solution built on Microsoft Dynamics 365 that provides integrated financial management (Sarastia365 Talous) and HR management (Sarastia365 HR) capabilities, along with reporting and material management. The company also delivers its services through two models: a service center model where functions are outsourced to Sarastia, or a software service model where customers use the system with Sarastia providing implementation support and main user services. Customers can choose from multiple financial management systems including Sarastia365 Talous, Raindance Kuntamallin, Netvisor, or SAP depending on their existing infrastructure. The OmaSarastia customer portal serves as the unified digital channel for all service requests. The company became part of Administer Group in April 2026.

Differentiator

Problem solved

Functional benefit

Products and services

• Sarastia365 Sarastia365 is a product family designed for public sector needs that brings multiple solutions onto one platform and scales easily for organizations of different sizes. It includes financial management (Sarastia365 Talous), HR management (Sarastia365 HR), reporting, and materials management solutions, all built on the Microsoft Dynamics 365 platform.
• Sarastia365 Talous Comprehensive financial management solution built on Microsoft Dynamics 365 for municipalities and welfare areas, covering accounting, fixed assets, and purchase and sales invoice processing in a unified system. It automates financial routines, reduces manual work, and enables real-time reporting.
• Sarastia365 HR HR management solution as part of the Sarastia365 product family, integrated with payroll processing for public sector organizations. It covers personnel administration, reporting, and is integrated with the broader financial management platform.
• OmaSarastia Customer service portal for submitting service requests, sending attachments, and tracking case progress 24/7. Built on ServiceNow, it serves as the primary channel for service requests for both private customers and professional users, with employee self-service and professional user inquiry functions.
• Talouspalvelut (Financial Services) Financial management services for municipalities, wellbeing services counties, and municipal companies. Covers budgeting and reporting templates, accounting, fixed asset accounting, payment traffic, sales invoice recording, sales ledger, purchase and sales invoice communication service, purchase invoice routing, purchase ledger, financial reporting to State Treasury, financial statements and consolidated financial statements, and system main user tasks.
• Palkkapalvelut (Payroll Services) Payroll calculation and HR management services for municipalities, wellbeing services counties, and municipal companies. Ensures continuity through a clear cooperation model, standardized processes, and strong expertise.
• Ohjelmistopalvelut (Software Services) Software services including the Sarastia365 product family, system main user tasks, and support for various financial management systems. Delivered via the Service Center Model (outsourcing) or Software Service Model (customer uses the system with Sarastia as main user).

Quantifiable outcome

• Processes approximately 1.4 million purchase invoices per year
• +2 more outcomes

Named customers8 records

Segments4 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration11 records

AI capability2 records

Feature5 records

Partnerships

Three partnerships are on record, tiered core.

• Administer GroupcoreStrategic or Co-development Partner · 1 April 2026Sarastia became part of Administer Group on April 1, 2026. Administer Group is a provider of HR and financial services offering payroll and financial management services, software services, consulting, staffing, and international expert services. The transaction value is approximately 58 million EUR including 490 employees.
• MicrosoftcoreTechnology or IntegrationSarastia365 Talous is built on Microsoft Dynamics 365 platform. The partnership provides the technical foundation for the financial management solution designed for municipalities and welfare areas.
• ServiceNowcoreTechnology or IntegrationOmaSarastia customer portal is built on ServiceNow platform, enabling 24/7 service request submission, attachment handling, and case tracking.

Scale indicators7 records

Recent moves8 records

Expansion highlights5 records

Broad incumbents

• Administer Group: Parent group of Sarastia since April 2026 and a direct comparable as a Finnish provider of HR, payroll, financial management, and software services. Same customer verticals (enterprises and public sector) and overlapping service catalog make it the most relevant incumbent peer.
• Tietoevry: Large Nordic IT services and software provider with significant public-sector practice in Finland, including municipal ERP, financial management, and digitalization engagements. Competes with Sarastia for large municipal transformation mandates.
• CGI: Global IT and business consulting firm with a strong Nordic and Finnish public-sector practice. Overlaps with Sarastia on outsourced financial administration, systems integration, and managed services for government entities.
• Visma: Nordic software and business services group that both partners with Sarastia (Visma Sign) and competes in adjacent accounting/HR/payroll software and managed services for SMEs and the public sector across the Nordics.

Direct peers

• Accountor Group (Aallon Group): Finnish/Nordic accounting, payroll, and HR outsourcing group with deep exposure to SMEs and public sector-adjacent entities. Directly comparable on outsourced financial administration, payroll services, and ERP/software resale.
• Silta (Silta Oy): Finnish provider of HR, payroll, and financial management outsourcing services. Directly comparable business model, customer base, and service portfolio to Sarastia's Palkkapalvelut and Talouspalvelut offerings.
• Azets: Nordic-headquartered outsourcing group delivering payroll, HR, and finance & accounting services to SMEs and public sector-adjacent entities. Closely comparable on service catalog and BPO delivery model.

Emerging players

• KPMG Finland: Big-4 advisory with a Finnish public-sector practice covering finance transformation, shared services, and managed finance. A relevant competitor for advisory-led municipal finance engagements that can convert into outsourcing deals.
• Deloitte Finland: Big-4 advisory and consulting practice with public-sector finance transformation and BPO capabilities. Competes with Sarastia for higher-end municipal finance transformation and shared services mandates.
• Basware: Nordic-based provider of AP automation, e-invoicing, and purchase-to-pay software. Overlaps with Sarastia365 Talous on the invoice processing and payment traffic side of municipal finance.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeinfo.administer.fi/samalla-matkalla-podcast
• Xx.com/Sarastia_Oy

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 records

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 Sarastia