What Aider does

Aider is a Norwegian accounting, consulting, and technology firm (marketed as a "kompetansehus" or competence house) that scaled to over 1,500 advisors and staff across 55+ offices nationwide, serving SMBs, mid-market companies, and select enterprise clients including the Church of Norway, football clubs (Lyn, Odd, Sandefjord Fotball), construction firms, and large food and beverage importers. Service lines span core accounting and bookkeeping, payroll processing (integrated with SD Worx), financial advisory and CFO services, HR consulting and recruitment, legal services (Aider Legal), ERP implementation (primarily Xledger), data analytics, and sustainability/climate accounting (via Morescope partnership). The company was founded in 2018-2019 by Andreas Vik and Knut Grotli, with Castik Capital as a private equity backer, and grew through an aggressive roll-up strategy completing over 100 acquisitions in 7 years including the high-profile 2022 acquisition of PwC Accounting.

The business model is professional services delivered via direct sales through a regional office network, with custom monthly subscription pricing that varies by client size, scope, and complexity. Aider differentiates by combining on-the-ground local advisor presence with technology integration, notably its in-house Generative AI Advisory Assistant that automates period close and drafts advisory reports. In September 2025, the company was acquired by Karbon, an AI-powered practice management platform for accounting firms, with the deal designed to integrate Aider's AI capabilities into Karbon's global product offering while Aider continues operating its Norwegian professional services business. The firm has also expanded internationally into Denmark, Sweden, Poland, and the U.S./Canada under the Aider Group umbrella, signaling a transition from purely domestic services to a hybrid technology-enabled advisory model.

Name

Aider

Legal name

Aider AS

Website

https://aider.no

Company type

Private

Founded year

2019

Operating status

Acquired

Headcount range

501–1,000 employees

Short description

Aider is a Norwegian accounting, consulting, and technology firm offering AI-augmented bookkeeping, payroll, advisory, HR, legal, and ERP implementation services to SMB and mid-market clients across 55+ offices nationwide, now operating as a Karbon company since September 2025.

Ownership category

akta.pro rank

Product category

Accounting Services

NAICS

Offices of Certified Public Accountants (541211), Management Consulting Services (54161), Human Resources Consulting Services (541612), Office Administrative Services (5611)

SIC

Services-Engineering, Accounting, Research, Management (8700), Services-Management Consulting Services (8742), Services-Computer Programming Services (7371)

akta.pro primary industry

Performance Management & Productivity Consulting (BPAHAGAL)

akta.pro secondary industries

Recruiting Administration Outsourcing (Recruitment Support, Scheduling, Onboarding Ops) (BPACAKAG), Employee Benefits Brokerage & Consulting (FSAEADAC), Expense Management & T&E Audit (Employee Expenses, Corporate Cards) (BPAAAGAE)

Keywords

• Accounting services
• Payroll processing
• Financial advisory
• ERP implementation
• HR consulting

Headquarters

HQ city

Oslo

HQ country

Norway

HQ region

Europe

Offices54 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Accounting Services: Full-service accounting including bookkeeping, financial reporting, and period close automation for businesses of all sizes
2. Payroll Services: Complete payroll processing, A-melding submissions, travel expenses, and NAV reimbursements
3. Financial Advisory: Economic consulting, CFO services, business development, and strategic advisory
4. Technology Services: ERP implementation, system integrations, data analytics, and technology consulting
5. HR Services: HR consulting, recruitment, leadership development, and HR system implementation
6. Legal Services: Legal advisory services through Aider Legal including tax, VAT, and corporate law
7. Sustainability Reporting: ESG reporting, climate accounting, and sustainability compliance services

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels5 records

Core offering

Aider is Norway's largest accounting and business services firm (kompetansehus) offering professional accounting, payroll processing, financial advisory, HR consulting, legal services, and ERP/technology implementation to SMB and mid-market businesses. The company combines local advisory presence across 55+ Norwegian offices with centralized cloud-based technology platforms (Xledger ERP, SD Worx payroll, and a proprietary generative AI advisory assistant) to deliver bookkeeping, period-close automation, tax compliance, and strategic CFO services. In September 2025, Aider was acquired by Karbon to integrate its AI advisory technology into Karbon's AI-powered accounting practice management platform.

Product overview

Aider is a Norwegian accounting and consulting services firm (kompetansehus), not a software product company. The company offers professional services including accounting and bookkeeping, payroll processing, economic and sustainability consulting, HR services, outsourcing of accounting and finance functions, technology consulting (ERP and business systems, data and analysis, process automation, integrations, implementation and training), legal services, and innovation consulting. In September 2025, Aider was acquired by Karbon to enhance Karbon's AI-powered practice management platform for accounting firms. Following the acquisition, Aider's services are being integrated into Karbon's platform to provide AI-powered accounting, bookkeeping, advisory workflows, and real-time reporting automation.

Differentiator

Problem solved

Functional benefit

Brands

• Aider Legal: Legal services including tax, VAT, customs and excise duties advisory provided by experienced lawyers.
• Aider Innovasjon
• Ascender

Products and services

• Regnskap (Accounting Services) Full-service accounting for SMBs and mid-market businesses including bookkeeping, financial reporting, period close automation, and tax compliance. Served via 55+ local offices across Norway.
• Lønn (Payroll Services) Complete payroll processing including salary payments, travel expense handling, NAV reimbursements, and A-melding (Norwegian employer reporting) submissions for businesses of all sizes.
• Rådgivning (Financial and Sustainability Advisory) Economic consulting, CFO services, business development, strategic advisory, ESG reporting, climate accounting, and sustainability compliance services for Norwegian businesses.
• Outsourcing of Accounting and Finance Functions Full outsourcing of accounting and finance functions for businesses that prefer to delegate the entire finance function to Aider's team of advisors.
• Teknologi (ERP and Business Systems) ERP and business system implementation (primarily Xledger), data and analytics, integration services, process automation, and implementation training for clients' finance and operations systems.
• Aider Legal Legal advisory services including tax, VAT, customs and excise duties, and corporate law provided by experienced business lawyers as part of Aider's full-service offering.
• Aider Innovasjon Innovation and startup services including development support, funding applications, innovation project planning, and growth advisory for businesses developing new ideas and seeking public or private funding.
• Ascender Executive Search and Management-for-Hire Executive search, management assessment, recruitment, and management-for-hire services delivered through the Ascender sub-brand, providing access to Aider's client base across Norway.
• HR Consulting and HR-for-Hire HR consulting, recruitment, leadership development, HR system implementation, and HR-for-hire services where Aider places dedicated HR advisors inside client businesses.

Quantifiable outcome

• 100+ acquisitions completed in 7 years
• +2 more outcomes

Named customers9 records

Segments5 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Six partnerships are on record, tiered core and minor.

• KarboncoreStrategic or Co-development Partner · 30 September 2025Karbon acquired Aider in September 2025 to integrate Aider's AI-powered advisory and reporting technology into Karbon's practice management platform for accounting firms. The integration aims to automate bookkeeping, advisory workflows, and real-time reporting.
• XledgercoreTechnology or IntegrationXledger is the primary ERP and accounting system used by Aider for client services. The partnership provides real-time project accounting, financial control, and integrated reporting capabilities.
• MorescopecoreStrategic or Co-development PartnerMorescope provides climate accounting platform integrated with Aider's services. Together they help businesses create GHG Protocol-compliant climate accounts using transaction data from accounting records.
• AscendercoreStrategic or Co-development PartnerAscender merged with Aider in 2025, bringing executive search, management assessment, and recruitment services. Ascender operates as a subsidiary maintaining its brand while providing access to Aider's client base.
• AhlsellminorStrategic or Co-development PartnerCommercial partnership announced in May 2026 for business collaboration.
• Aider LegalcoreChannel Partner/ Reseller/ DistributorAider Legal provides legal services including tax, VAT, customs, and corporate law as part of Aider's full-service offering.

Scale indicators5 records

Recent moves11 records

Expansion highlights7 records

Direct peers

• BDO Norway: BDO Norway is one of Norway's largest accounting and advisory firms. Highly comparable — Aider's CEO Andreas Vik led BDO Norway's accounting practice for 6 years, and Chairman Knut Grotli served as BDO Norway's Deputy CEO before joining Aider.
• PwC Norway: PwC Norway is a Big 4 audit, tax, and advisory firm in Norway. Direct peer — Aider's Chairman Knut Grotli was previously PwC Norway's CEO/Managing Partner, and Aider acquired PwC Accounting in 2022, one of the largest deals in Norwegian accounting history.
• EY Norway: EY Norway is a Big 4 firm providing audit, tax, advisory, and transaction services. Chairman Knut Grotli began his career at EY (Arthur Andersen) in Transaction Advisory. Direct competitor for Norwegian mid-market and enterprise advisory work.
• KPMG Norway: KPMG Norway is a Big 4 audit, tax, and advisory firm. Competes directly with Aider for mid-market accounting, payroll, and advisory engagements across Norwegian SMB and enterprise clients.
• Deloitte Norway: Deloitte Norway is a Big 4 firm offering audit, consulting, tax, and advisory services. Direct competitor for Norwegian enterprise accounting, payroll, HR, and digital transformation engagements.
• Azets: Azets is a leading Nordic accounting, payroll, and advisory firm formed via private equity-backed roll-up of regional Scandinavian accounting firms. Closest comparable peer to Aider in business model — both are acquisition-driven, multi-service, Nordic accounting consolidators.
• Accountor Group: Accountor is a Nordic accounting, payroll, and digital services provider serving SMBs across Finland, Sweden, Norway, and the Netherlands. Direct peer in Nordic accounting outsourcing and SaaS-enabled services.
• RSM Norway: RSM Norway is a mid-tier accounting and advisory firm and member of the RSM International network. Direct peer competing for Norwegian mid-market audit, tax, and advisory engagements.
• Grant Thornton Norway: Grant Thornton Norway is a mid-tier audit and advisory firm serving Norwegian mid-market clients. Direct peer competing for accounting, tax, and advisory mandates in the same customer segment.

Broad incumbents

• Visma: Visma is a major Nordic provider of accounting software and business solutions with broad SMB reach. Overlapping with Aider via Xledger (Visma-owned) ERP partnership and competing for the same Norwegian SMB accounting customer base.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/paaveiopp
• Facebookfacebook.com/aidernorge

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 records

Subsidiaries7 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 Aider