Helsingin Seudun Isännöitsijät

What Helsingin Seudun Isännöitsijät does

Helsingin Seudun Isännöitsijät Oy (HSI) is a Finnish private limited property management company founded in 1987, headquartered in Helsinki and serving housing companies (asunto-osakeyhtiöt) across the Helsinki metropolitan area (Helsinki, Espoo, and Vantaa) through three physical offices. The company offers a tiered service portfolio organized around four branded products — HSI Kaikki (full-service management at a single monthly fee), HSI Plus (proactive, long-term management for larger buildings, including a €1,050 value starting inspection for new customers), HSI Huoleton (cost-effective management for small buildings under 15 apartments), and HSI Pienelle taloyhtiölle (standalone bookkeeping available nationwide) — supplemented by in-house modules for administrative management, financial management (Taloushallinto), technical property services (Tekniikka, 15 experts), and property law (Lakipalvelut, four lawyers).

The operational backbone is the proprietary AsOyKanta web portal (erp.asoykanta.fi / extranet.asoykanta.fi), integrated with Visma Fivaldi for accounting, Microsoft SharePoint and OneDrive for document management, Microsoft Teams for hybrid meetings, Signom for electronic signatures, and SaunaOnline/Microsoft Bookings for shared-facility reservations. The company developed its electronic shareholder meeting and advance-voting system in-house in 2018 and scaled it to over 2,000 electronic meetings in 2020 during the COVID-19 pandemic, serving as a structural digitalization differentiator. HSI is the only property management company in Finland holding ISO 9001 quality certification (DNV, since 1998) alongside ISA authorization, and holds the Avainlippu (Key Flag) mark for 100% Finnish origin.

The company operates a sales-led, geographically concentrated B2B services model targeting volunteer housing-company boards: monthly recurring management fees, quote-based pricing by property size and tier, inside-sales support via a key account manager, and acquisition incentives including a four-month 50% discount, an eight-month 100% satisfaction guarantee, and bundled electricity procurement through Helen at an estimated ~5.6 c/kWh for 2026 across approximately 8,300 MWh. Reported turnover is €9.0 million with a stated 15% growth rate, 100+ professionals, and 650+ housing-company customers. HSI is part of a Finnish family consortium that includes Tilitalo Emma Oy (bookkeeping), Taloasema Oy (property management), KIAS Oy (technical services, spun out from HSI in 2022), and Kiinteistösatama Oy (real estate brokerage, founded 2021); CEO Katja Uhlenius has led the company since September 2022.

Name

Helsingin Seudun Isännöitsijät

Legal name

Helsingin Seudun Isännöitsijät Oy

Website

https://hsi.fi

Company type

Private

Founded year

1987

Operating status

Operating

Short description

Helsingin Seudun Isännöitsijät is a Finnish property management company founded in 1987 that serves housing companies in the Helsinki metropolitan area through tiered management, bookkeeping, technical, and legal services delivered via a proprietary AsOyKanta portal by 100+ professionals.

Ownership category

akta.pro rank

Product category

Residential Property Management

NAICS

Services to Buildings and Dwellings (5617), Facilities Support Services (56121)

SIC

Services-To Dwellings & Other Buildings (7340), Services-Facilities Support Management Services (8744)

akta.pro primary industry

HOA/Condo Document & Estoppel Services (BPAJAOAK)

akta.pro secondary industry

Document Services (Copy/Print/Scan, Records Handling) (BPABAEAG)

Keywords

• Residential property management
• Housing company administration
• Property accounting services
• Technical property maintenance
• Real estate legal services

Headquarters

HQ city

Helsinki

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, Others

Revenue model

1. Property Management Fees (Isännöintipalvelut): Monthly management fees charged to housing companies for comprehensive property management services. Three service tiers: HSI Kaikki (full service), HSI Plus (comprehensive), and HSI Huoleton (cost-effective for small housing companies). Fees vary by property size and service scope; quoted as fixed monthly fees.
2. Financial Administration (Taloushallinto / Kirjanpito): Bookkeeping and financial management services for housing companies, including real-time transparent accounting accessible to boards via web portal. Offered as standalone service (HSI Pienelle taloyhtiölle) for small properties.
3. Technical Property Services (Tekniikka): Technical advisory, condition assessments, maintenance planning, and project management for housing companies. Includes 5-year maintenance needs assessments and renovation project coordination.
4. Legal Services (Lakipalvelut): In-house property law team of four lawyers serving housing company clients with legal matters including maintenance responsibility disputes, renovation notifications, complaints, insurance claims, bylaw changes, and debt collection.

Pricing tiers

Go-to-market motion3 records

Distribution channels3 records

Marketing channels7 records

Core offering

Helsingin Seudun Isännöitsijät provides professional property management, real-time transparent bookkeeping, technical advisory, and in-house legal services for housing companies (asunto-osakeyhtiöt) in the Helsinki metropolitan area. Services are sold as monthly subscription packages (HSI Kaikki full-service, HSI Plus comprehensive, HSI Huoleton for small housing companies) plus standalone bookkeeping for small properties (HSI Pienelle taloyhtiölle), with all activities managed through the proprietary AsOyKanta web portal and supported by centralized electricity procurement via Helen.

Product overview

Helsingin Seudun Isännöitsijät (HSI) is a property management company serving residential property companies across the Helsinki metropolitan area. The offering is organized as a platform-plus-service-model centered on the AsOyKanta web portal (erp.asoykanta.fi/extranet.asoykanta.fi), through which HSI delivers its core management services. The main service tiers are HSI Kaikki (full-service management at a single monthly fee), HSI Plus (proactive, long-term management with a complimentary technical inspection), HSI Huoleton (cost-effective solution for small buildings under 15 apartments), and HSI Pienelle taloyhtiölle (standalone bookkeeping for small property companies). These are supplemented by specialist modules covering administrative management (Hallinto), financial management (Taloushallinto), technical property services (Tekniikka), and in-house legal services (Lakipalvelut). A real estate brokerage sub-brand operates as Kiinteistösatama. All services are accessible through the Verkkopalvelu online portal, which also supports electronic shareholder meetings, electronic signatures via Signom, defect/service request management, and real-time financial reporting.

Differentiator

Problem solved

Functional benefit

Brands

• HSI Kaikki: Comprehensive property management service with all-inclusive monthly fee
• HSI Plus
• HSI Huoleton
• HSI Pienelle taloyhtiölle

Products and services

• HSI Kaikki (Full-Service Property Management) Comprehensive property management package providing administrative, financial, and technical management for housing companies at one all-inclusive monthly fee. Covers board support, legal compliance, bookkeeping, and maintenance planning.
• HSI Plus (Comprehensive Long-Term Property Management) Multi-faceted, proactive, planned property management service for housing companies that want long-term, expert management. Includes a complimentary €1,050-value technical starting inspection for new customers.
• HSI Huoleton (Small Housing Company Management) Easy and cost-effective property management solution for small housing companies (under 15 apartments) needing tailored management services.
• HSI Pienelle taloyhtiölle (Bookkeeping for Small Housing Companies) Affordable and efficient bookkeeping-only service for small housing companies, offered nationwide across Finland (not just the Helsinki metropolitan area).
• Taloushallinto (Financial and Administrative Management) Real-time, transparent bookkeeping and financial management for housing companies, including budget management, invoice processing, cost tracking, and organization of shareholder/board meetings with statutory compliance. Board members can monitor financial data via the web portal.
• Tekniikka (Technical Property Services) Technical advisory, condition assessments, five-year maintenance needs assessments, and renovation project management for housing companies. Delivered by HSI's in-house technical experts (with selected services via partner Suomen Kiinteistöasiantuntijat KIAS Oy).
• Lakipalvelut (Property Legal Services) In-house property law services for housing company clients, covering maintenance responsibility disputes, renovation notifications, complaints, insurance claims, bylaw/house rules changes, and debt collection. Delivered by a dedicated team of four property lawyers.
• Kodinvälitys / Kiinteistösatama (Real Estate Brokerage) Real estate brokerage offered through subsidiary Kiinteistösatama Oy, providing property sales with a unique one-year technical warranty on all mediated properties.

Quantifiable outcome

• 100% satisfaction guarantee for first 8 months for new customers
• +5 more outcomes

Named customers4 records

Segments4 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration8 records

Feature4 records

Partnerships

Nine partnerships are on record, tiered core, supporting and minor.

• HelencoreStrategic or Co-development Partner · 1 January 2026Helen (energy company) manages centralized electricity procurement for HSI's housing company clients. For 2026, electricity was purchased at an estimated price of ~5.6 c/kWh (excl. VAT). Approximately 8,300 MWh purchased for 2026 across HSI's customer base. This partnership provides predictable electricity pricing and cost savings for housing companies.
• Visma Software OycoreTechnology or IntegrationVisma provides property management and accounting software (Visma Fivaldi) used by HSI for financial management of housing companies. Visma's system is the core accounting platform for HSI's bookkeeping services. Servers located in Norway.
• Lounea Yritysratkaisut OysupportingTechnology or IntegrationIT services provider for HSI's Office 365, SharePoint and One Drive infrastructure. Located in Salo, Finland. Handles IT service solutions and technical infrastructure.
• Howden Finland OysupportingOthersInsurance broker handling HSI's corporate insurance matters. Located in Helsinki.
• Tilitalo Emma OysupportingImplementation/ SI/ Consulting PartnerBookkeeping services partner for HSI's financial administration operations. Tilitalo Emma is Finland's largest housing company bookkeeping provider.
• Suomen Kiinteistöasiantuntijat KIAS OysupportingImplementation/ SI/ Consulting PartnerTechnical expert services partner providing property condition assessments, technical consulting, and renovation project management for HSI's housing company clients. Located in Espoo.
• twoday Oy (Signom)supportingTechnology or IntegrationProvides Signom electronic signature service integrated with HSI's workflows for signing meeting minutes, financial statements, and other property documents digitally.
• Vailla Vakinaista Asuntoa Ry (Vva)minorOthersSocial responsibility partnership initiated in 2022. HSI's family of companies collaborates with Vva to support homeless people through voluntary work, technical consulting for Tupa temporary housing facility, and regular donations.
• Pelastakaa Lapset ryminorOthersCharitable partnership for donation of funds raised through digital communication campaign encouraging housing company shareholders to register contact details electronically, saving postal costs that are donated to support children in Finland.

Scale indicators11 records

Recent moves9 records

Expansion highlights5 records

Direct peers

• Taloasema: Taloasema is a Finnish property management company operating46 offices across Finland and part of the same HSI family consortium. It is the closest direct comparable — competing head-on in the isännöinti market while extending geographic reach beyond HSI's Helsinki metro focus.
• Realia Isännöinti: Realia Isännöinti is one of Finland's largest property management firms serving housing companies nationally. It competes directly with HSI in the Helsinki metro area and offers similar full-service management, financial administration, and technical advisory services.
• Tilitalo Emma: Finland's largest housing company bookkeeping provider and a member of the HSI family consortium. While focused on financial administration rather than full property management, Tilitalo Emma competes in the same housing company accounting space as HSI's Taloushallinto service.
• Suomen Kiinteistöasiantuntijat (KIAS): Technical expert services provider and HSI family consortium member offering property condition assessments and renovation project management. KIAS competes with HSI's Tekniikka service while also serving as a partner.

Broad incumbents

• Isännöintiliitto member firms (e.g., Isännöintiverstas, AM-Isännöinti): ISA-authorized Finnish property management firms operating under the industry association's standards. These established incumbents offer overlapping services and compete for the same housing company customers, particularly among mid-sized buildings.
• Kiinteistöliitto Uusimaa service partners: Property management and housing company service providers affiliated with Finland's largest real estate owner association. They overlap with HSI in serving housing companies in the Helsinki region with administrative, financial, and technical services.

Others

• Visma Fivaldi (housing company module): Accounting software platform used by HSI and many Finnish housing company bookkeepers. As the dominant housing company accounting SaaS in Finland, Visma represents both a core infrastructure dependency for HSI and a potential route for tech-savvy competitors to deliver similar financial transparency.

Emerging players

• Kiinteistösatama: Real estate brokerage subsidiary within the HSI family consortium offering a one-year technical warranty on mediated properties. Operates as an adjacent peer in the housing company transaction services space.

Market position

Strengths5 records

Weaknesses4 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/helsinginseudunisannoitsijat

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles10 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 Helsingin Seudun Isännöitsijät