MDDP Outsourcing - modern accounting, HR, payroll and tax services

What MDDP Outsourcing - modern accounting, HR, payroll and tax services does

MDDP Outsourcing, now operating as Aider Polska within the international AIDER Group, is a Polish business process outsourcing (BPO) provider delivering outsourced accounting, HR and payroll, financial reporting, and tax consulting services to Polish businesses across all stages of development. The company describes itself as one of the largest BPO firms in Poland, fielding a near-400-person specialist team across offices in Warsaw and Katowice, of whom roughly 350 hold professional credentials including ACCA, certified auditors, and tax advisors. The service portfolio is structured around five core modules — accounting outsourcing, HR and payroll outsourcing, financial statements (under Polish UoR and IFRS/MRS), technology/systems implementation, and tax and transaction consulting — supplemented by KSeF (National e-Invoice System) post-implementation support and corporate services delivered in partnership with a Polish law firm.

The underlying technology layer consists of commercial accounting and payroll systems integrated with automation tools, accessible to clients as their organizations mature; no proprietary AI/ML platform, public API, SDK, or application product was disclosed. The business model is a mix of recurring subscription-style outsourcing contracts for core accounting, HR, and payroll functions, paired with project-based professional services for tax advisory, financial reporting, due diligence for investors, and corporate services. Pricing is quote-based and not publicly disclosed. The go-to-market is sales-led direct BPO delivery via the Warsaw and Katowice offices, supported by content marketing (blog, case studies, references, video/podcast) targeting Polish SMBs through large enterprises on a horizontal segmentation basis.

The company's positioning has been reinforced by consecutive market recognition — Gazele Biznesu 2025, Diamenty Forbes 2026 (fourth consecutive year), and the international Global Payroll Awards 2025 for Payroll Team of the Year — and by its incorporation into the AIDER Group, which has parallel operations in Denmark and Norway, providing a structural route to Nordic-outbound service delivery.

Name

MDDP Outsourcing - modern accounting, HR, payroll and tax services

Legal name

Aider Polska

Website

https://mddp-outsourcing.pl

Company type

Private

Founded year

2006

Operating status

Operating

Headcount range

251–500 employees

Short description

Aider Polska (formerly MDDP Outsourcing) is one of the largest Polish BPO firms, providing outsourced accounting, HR/payroll, financial reporting, and tax consulting services to Polish businesses of all sizes via a ~400-person specialist team in Warsaw and Katowice, now operating within the international AIDER Group.

Ownership category

akta.pro rank

Product category

Business Process Outsourcing Services (Accounting, HR, Payroll, Tax)

NAICS

Accounting, Tax Preparation, Bookkeeping, and Payroll Services (54121), Payroll Services (541214), Office Administrative Services (56111), Offices of Certified Public Accountants (541211)

SIC

Services-Engineering, Accounting, Research, Management (8700), Services-Management Services (8741), Services-Computer Programming, Data Processing, Etc. (7370)

akta.pro primary industry

Business Process-Aligned IT Outsourcing (ITO + BPO Integrated) (BPAEAMAJ)

Keywords

• Accounting outsourcing services
• Payroll processing services
• HR outsourcing services
• Tax consulting services
• Financial reporting services

Headquarters

HQ city

Warsaw

HQ country

Poland

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. BPO/Outsourcing Services: Recurring outsourcing contracts for accounting, HR/payroll services. Clients receive comprehensive financial, HR, and payroll support with dedicated specialist teams.
2. Tax Consulting Services: Tax advisory and consulting engagements for optimization and compliance purposes
3. Financial Reporting Services: Preparation of financial statements for companies and capital groups according to Polish Accounting Act (UoR) and IFRS/MRS, e-statements and management reports
4. Corporate Services: Company formation and purchase of shelf companies in Poland, offered in cooperation with a reputable law firm

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

MDDP Outsourcing (now Aider Polska) delivers outsourced accounting, HR and payroll, financial reporting, tax consulting, and corporate services to Polish businesses through dedicated specialist teams based in Warsaw and Katowice. The offering combines professional expertise (ACCA-qualified specialists, certified auditors, tax advisors) with accounting and payroll systems automation, including KSeF (National e-Invoice System) integration support. Services span daily operational finance through to strategic projects such as due diligence for investors and financial controlling.

Product overview

MDDP Outsourcing (now Aider Polska) is a comprehensive BPO (Business Process Outsourcing) service provider offering a unified platform of interconnected financial and HR services. The core portfolio consists of Accounting Outsourcing, HR & Payroll Outsourcing, Financial Statements, and Solutions & Systems modules, complemented by Tax & Transaction Consulting. The offering is delivered as a unified service model where the company combines expert knowledge with technology to increase efficiency, security, and transparency of business processes. Aider Polska employs approximately 350-400 specialists with professional qualifications (ACCA, chartered auditors, tax advisors) working in Warsaw and Katowice offices.

Differentiator

Problem solved

Functional benefit

Products and services

• Accounting Outsourcing (Outsourcing księgowości) Comprehensive accounting outsourcing services including bookkeeping, financial record maintenance, and compliance with Polish accounting standards (UoR and MSSF/MSR) for companies in Poland.
• HR & Payroll Outsourcing (Outsourcing kadr i płac) Full-service HR and payroll processing including payroll administration, employee records management, ZUS (social security) compliance, and support during ZUS audits (Tarcza ZUS) for companies in Poland.
• Financial Statements (Sprawozdania finansowe) Preparation of financial statements for companies and capital groups in accordance with Polish Accounting Act (UoR) and IFRS/MRS, including e-statements and management reports.
• Solutions & Systems (Rozwiązania i systemy) Implementation of solutions and systems that streamline work of finance, accounting, and payroll departments, including accounting systems and automation tools integrated into client engagements.
• Tax & Transaction Consulting (Consulting podatkowy i transakcyjny) Tax advisory and transactional consulting services, including process optimization, bank reporting support, payment optimization, and due diligence projects for investors.
• Corporate Services Corporate services including company formation and purchase of shelf companies in Poland, provided in collaboration with a law firm.

Named customers1 record

Segments1 record

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature2 records

Partnerships

One partnership is on record.

• Renowned Law Firm (Unnamed)supportingStrategic or Co-development PartnerCooperation with a reputable law firm for corporate services including company formation and purchase of shelf companies in Poland. This partnership enables the company to offer clients comprehensive support not only for ongoing financial and accounting services but also for launching and developing business activities.

Scale indicators3 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Deloitte Poland (Tax & Consulting / BPO practice): Big-4 firm in Poland offering finance transformation, accounting & payroll outsourcing, and tax consulting as part of a wider advisory portfolio. Overlaps with Aider Polska on outsourced accounting and payroll but operates at larger deal sizes and broader scope.
• PwC Poland (Tax & BPO practice): Big-4 firm offering outsourced finance, payroll, HR, and tax compliance to large Polish and multinational clients. Competes for the upper end of Aider Polska's addressable market.

Direct peers

• Grant Thornton Poland: International mid-tier accounting network with a Polish practice providing accounting outsourcing, payroll, and tax advisory. Comparable in service portfolio, professional credentials (auditors, tax advisors), and mid-market focus.
• BDO Poland: BDO's Polish operation offers accounting outsourcing, payroll, and tax advisory through a global mid-tier accounting network. Comparable to Aider Polska as a similarly positioned multi-service BPO serving Polish mid-market and enterprise clients.
• Visma: Nordic-headquartered provider of accounting, payroll, and HR software plus adjacent BPO services. Comparable as a technology-augmented finance & HR outsourcing peer active across Northern Europe and with growing Central European presence.
• Rödl & Partner Poland: German-origin professional services firm with a strong Polish accounting, payroll, and tax outsourcing practice serving mid-market and German-linked clients in Poland.
• Mazars Poland: Mazars delivers accounting, payroll, and tax outsourcing in Poland as part of an integrated international firm. Directly comparable on service mix, professional credentials, and target client segments.
• TMF Group: Global BPO specialist in accounting, payroll, tax, and corporate secretarial services with significant Polish operations. Direct competitor for enterprise and international clients seeking outsourced finance/HR in Poland.

Emerging players

• Symfonia: Polish ERP and accounting/payroll software provider. Adjacent competitor — increasingly bundles automation that could substitute for traditional outsourced bookkeeping at the SMB end of Aider Polska's range.
• InFakt: Polish SaaS accounting and invoicing platform targeting freelancers and SMBs. Represents the self-service automation trend that threatens the lower tier of traditional outsourced bookkeeping in Poland.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/mddp-outsourcing

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

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 MDDP Outsourcing - modern accounting, HR, payroll and tax services