BX Service
BX Service (Assist4Biz) sells a browser-based SaaS invoicing and business management tool for German SMBs and freelancers, with DATEV export and built-in eRechnung, ZUGFeRD and GDPR compliance on a freemium-to-Pro pricing model.
- Company typePrivate
- Founded-
- HeadquartersKrefeld, Germany
- Headcount11–50
- GTM typeB2B
- OfferingSoftware
What BX Service does
BX Service, commercially operating as Assist4Biz, is a Krefeld, Germany-based software vendor that sells a browser-based SaaS invoicing and business management platform aimed at German small businesses, sole proprietors and freelancers. The product centralises invoice creation, expense tracking and tax-relevant records around German regulatory requirements, explicitly supporting eRechnung mandates, the ZUGFeRD hybrid invoice format and GDPR-aligned data handling, and exports finished books to DATEV, the dominant German accounting back-office used by tax advisors. Differentiation versus generic invoicing tools is positioned around this compliance and DATEV integration stack rather than around novel accounting logic.
BX Service firmographics
Firmographics- Name
- BX Service
- Legal name
- Assist4Biz
- Website
- https://bx-service.com
- Company type
- Private
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- BX Service (Assist4Biz) sells a browser-based SaaS invoicing and business management tool for German SMBs and freelancers, with DATEV export and built-in eRechnung, ZUGFeRD and GDPR compliance on a freemium-to-Pro pricing model.
- Ownership category
- akta.pro rank
Where BX Service is headquartered
LocationHeadquarters
- HQ city
- Krefeld
- HQ country
- Germany
- HQ region
- Europe
Offices1 record
Markets served
BX Service business model
Business model- GTM type
- B2B
- Offering type
- Software
- Cost components
- Technology or R&D, Infrastructure, Personnel, Marketing or Sales, Operations
Revenue model
- SaaS Subscription - Starter: Free tier offering limited to 5 invoices per month with basic dashboard and PDF export. Serves as freemium acquisition channel with 'Powered by Assist4Biz' footer branding.
- SaaS Subscription - Growth: Paid tier at €12/month (or €10/month annual) offering unlimited invoices, up to 2 users, full dashboard suite, monthly DATEV export, white-label invoices, and email support.
- SaaS Subscription - Pro: Premium tier at €24/month (or €20/month annual) including everything in Growth plus priority support, AI Monthly Digest, AI Annual Report, custom invoice template (one-time change), and up to 5 users.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Freemium | Monthly | Free tier - 5 invoices/month with basic features |
| Subscription | Monthly | Growth tier - Unlimited invoices, 2 users, full dashboard |
| Subscription | Monthly | Pro tier - All Growth features plus AI insights and priority support |
Go-to-market motion1 record
Distribution channels1 record
Marketing channels2 records
BX Service product offering
Product offeringCore offering
Assist4Biz is a browser-based SaaS business management application for German small businesses and freelancers, offering invoicing, customer management, product/inventory tracking, German tax compliance (eRechnung/ZUGFeRD), DATEV export, and an AI-powered business advisor. The platform requires no installation, runs on any device browser, and is built on an ERP backend to scale with the business.
Product overview
Assist4Biz is a single unified cloud-based business management application designed for small businesses, particularly in Germany. The core offering consists of a web-based platform providing invoicing, customer management, product/inventory tracking, and tax handling. The product is available in three tiers: Starter (free), Growth (€12/month), and Pro (€24/month). Higher tiers add user seats, DATEV accounting export, white-label invoicing, and AI-powered business insights. The platform requires no installation, runs entirely in-browser on any device, and is built on an ERP backend to support business scaling without platform migration.
Differentiator
Problem solved
Functional benefit
Products and services
- Assist4Biz Cloud-based business management SaaS for German small businesses and freelancers, providing professional invoicing with built-in ZUGFeRD/eRechnung compliance, customer and inventory management, German tax engine (VAT, Kleinunternehmer, export), DATEV export, real-time revenue dashboards, and an AI-powered business advisor that delivers monthly and annual insights.
Quantifiable outcome
- Invoicing time reduced to under 1 minute for existing customers
Companies that use BX Service
Customer profileNamed customers2 records
Segments1 record
Ideal customer profiles1 record
BX Service technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Integration1 record
AI capability2 records
Feature5 records
BX Service partnerships and signals
Strategic signalScale indicators2 records
Recent moves6 records
Expansion highlights5 records
BX Service competitors and assessment
Company assessmentEmerging players
- Candis: Candis is a Berlin-based AI-driven finance automation platform for SMBs in Germany; it overlaps with Assist4Biz in invoice automation and accountant workflows but extends into broader spend management.
- Smacc: Smacc (now part of Creditreform) provides AI-based accounting and invoice processing for German SMBs, comparable to Assist4Biz's AI-driven monthly digest approach but with a wider finance automation scope.
Direct peers
- FastBill: FastBill offers cloud-based invoicing, expense management, and accounting for German freelancers and small businesses, including DATEV export — closely overlapping with Assist4Biz's core features and target segment.
- Lexoffice: Lexoffice is a leading German cloud accounting and invoicing SaaS for SMBs and freelancers, with built-in DATEV export and German tax compliance. It is the most direct competitor to Assist4Biz in the German freelancer/SMB invoicing category.
- sevDesk: sevDesk is a German cloud invoicing and accounting platform targeting freelancers, SMBs and small businesses, with DATEV integration and tax-handling features comparable to Assist4Biz's offering.
- Debitoor: Debitoor is a European cloud invoicing app (now under Sage) targeting freelancers and small businesses, comparable to Assist4Biz in product scope and European SMB focus.
- BuchhaltungsButler: BuchhaltungsButler is a German SaaS for SMB bookkeeping and invoicing with DATEV export and German tax compliance — overlapping directly with Assist4Biz's target use cases.
- Billomat: Billomat is a German cloud invoicing and accounting tool for SMBs and freelancers, with features like ZUGFeRD and DATEV integration that directly mirror Assist4Biz's positioning.
Broad incumbents
- DATEV SmartInvoice: DATEV is the dominant German tax/accounting software provider used by most German tax advisors; its cloud invoicing tools and DATEV export standard are central to the ecosystem Assist4Biz plugs into and competes with.
- Sage Business Cloud Accounting: Sage is a global incumbent in SMB accounting software; its German cloud accounting product competes in the same invoicing/accounting space as Assist4Biz but as part of a much broader portfolio.
Market position
Strengths4 records
Weaknesses5 records
Competitive moat5 records
Key risks5 records
Key highlights6 records
Customer concentration
BX Service compliance and trust
Trust signalCompliance2 records
BX Service financial estimates
Financial estimateRevenue estimate
Valuation estimate
BX Service leadership team
Management profileNumber of profiles
Profiles2 records
BX Service funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
BX Service M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about BX Service
What does BX Service do?
Assist4Biz is a browser-based SaaS business management application for German small businesses and freelancers, offering invoicing, customer management, product/inventory tracking, German tax compliance (eRechnung/ZUGFeRD), DATEV export, and an AI-powered business advisor. The platform requires no installation, runs on any device browser, and is built on an ERP backend to scale with the business.
Is BX Service a public or private company?
BX Service is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was BX Service founded?
BX Service was founded in -1. It employs 11 to 50 people.
Where is BX Service based?
BX Service is headquartered in Krefeld, Germany, in the Europe region.
How does BX Service make money?
Three revenue lines are on record. SaaS Subscription - Starter is the primary driver. The others are saaS Subscription - Growth and saaS Subscription - Pro.
Who are BX Service's main competitors?
Emerging players on record are Candis and Smacc. Direct peers are FastBill, Lexoffice, sevDesk, Debitoor, BuchhaltungsButler and Billomat. Broad incumbents are DATEV SmartInvoice and Sage Business Cloud Accounting.
Does BX Service have an API?
No public API is recorded for BX Service.