Trustlog

What Trustlog does

Trustlog GmbH is a Hamburg-based SaaS company, founded in 2020, that operates a cloud-based platform for the digital issuance, management, and storage of surety bonds (Bürgschaften/Avale) in the German construction industry. The platform connects three parties — principals/assignees (Auftraggeber), contractors (Avalkreditnehmer), and surety providers (Avalgeber) — enabling sureties to be issued, transmitted, accepted, and released digitally in seconds rather than days via postal delivery, with full audit-safe documentation under §350 HGB. The technology stack combines Keycloak (authentication), Salesforce (CRM), DocuSign (e-signature), Calendly (scheduling), and CleverReach (email), with hosting exclusively on ISO 27001-aligned servers in Frankfurt am Main. Trustlog has integrated with 9 major German surety insurers (Atradius, AXA, ERGO, Gothaer, R+V, Tokio Marine, VHV, Württembergische, Zurich) and three construction-specific ERP systems (BRZ 365 Finance via embedded iFrame, Cloudbrixx, NEVARIS Finance).

The company operates a hybrid freemium-and-subscription model: basic platform access is free for principals/assignees, while premium features — Single Sign-On (€29/month or €290/year plus €199 setup), API interface (€79/month or €790/year), and Avallinienmanagement / surety line management (€49/month or €490/year for up to 3 lines) — generate recurring revenue. Professional services for importing legacy paper sureties (€99 base + €0.47 per surety) and existing project data (€99 base + €0.37 per project) provide transactional revenue. The customer base spans large construction enterprises (Goldbeck, LEONHARD WEISS, Zech Group, Bauer, Echterhoff, Heberger, apoprojekt), public sector authorities (LBV.SH, Die Autobahn), and over 4,000 SMEs, collectively managing more than €7 billion in surety volume on the platform. Distribution combines self-serve digital registration, content marketing via case studies and a support knowledge base, sales-assisted enterprise engagement, and channel co-sell through the guarantor partner network.

Name

Trustlog

Legal name

Trustlog GmbH

Website

https://trustlog.de

Company type

Private

Founded year

2020

Operating status

Operating

Headcount range

11–50 employees

Short description

Trustlog is a Hamburg-based SaaS platform that digitizes the issuance, management, and storage of surety bonds (Avale) for the German construction industry, connecting principals, contractors, and nine major German insurers on a single ISO 27001-certified platform.

Ownership category

akta.pro rank

Headquarters

HQ city

Hamburg

HQ country

Germany

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Software

Cost components

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

Revenue model

1. Freemium Platform Access (Basic Tier): Base platform functions are free for principals/assignees (Auftraggeber) who receive sureties. This creates a network effect by onboarding the beneficiary side of the transaction. No charge for guarantors/insurers to issue digital sureties through the platform.
2. Premium Feature Subscriptions (SSO, API, Avallinienmanagement): Monthly or annual subscription fees for premium platform features including Single Sign-On (€29/month or €290/year + €199 setup), API interface (€79/month or €790/year), and Avallinienmanagement (€49/month or €490/year for up to 3 lines). All features available on monthly (flexible, cancellable) or annual (discounted) billing cycles.
3. Professional Services (Altbürgschaften Import): One-time professional service fees for importing existing paper-based surety data into the platform. Base price of €99 net per XLSX list plus €0.47 net per surety imported. Separate pricing for creditor and debtor sureties.
4. Professional Services (Projektimport): One-time professional service fees for importing project data. Base price of €99 net per XLSX project list plus €0.37 net per project.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels9 records

Core offering

Trustlog is a cloud-based SaaS platform that digitizes the issuance, receipt, management, and release of surety bonds (Bürgschaften/Avale) in the German construction industry. The platform connects three parties — principals/assignees, beneficiaries, and guarantor insurers — enabling legally valid digital sureties under German commercial law (HGB §350) to be issued in seconds rather than days. The core platform is offered free to principals, with paid premium modules (SSO, API, Avallinienmanagement) and professional import services for legacy paper-based guarantees and project data.

Product overview

Trustlog is a SaaS platform offering digital guarantee management (Avalmanagement) for the construction industry in Germany. The core platform enables the digital issuance, receipt, review, and management of guarantees from commissioning through release. The product portfolio includes the core Trustlog Platform with Digital Guarantees as the primary offering, supplemented by premium add-on modules: Avallinienmanagement (Guarantee Line Management), SSO (Single Sign-On), and API-Schnittstelle (API Interface). Professional Services include Import von Altbürgschaften (Legacy Guarantee Import) and Import von Projekten (Project Import). Basic platform access is free for principals (Auftraggeber), with premium features and professional services available on a subscription or per-transaction basis.

Differentiator

Problem solved

Functional benefit

Products and services

• Trustlog Platform (Digital Avalmanagement) Core SaaS platform for digital issuance, receipt, management, tracking, and release of construction surety bonds (Avale/Bürgschaften). Connects principals/assignees, beneficiaries, and guarantor insurers in a legally valid end-to-end digital workflow under HGB §350.
• Digitale Avale (Digital Sureties) Electronic version of traditional surety bonds, legally valid under German commercial law (HGB §350), issued, stored, and managed on the Trustlog platform with audit-safe history.
• Avallinienmanagement (Surety Line Management)
• SSO (Single Sign-On)
• API-Schnittstelle (API Interface)
• Import von Altbürgschaften (Legacy Surety Import)
• Import von Projekten (Project Import)

Quantifiable outcome

• €7 billion in surety volume managed on the platform
• +4 more outcomes

Named customers11 records

Segments6 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

Yes

API docs

API detail

Core technology

AI maturity

App detail

Integration3 records

Feature8 records

Partnerships

Twelve partnerships are on record, tiered core.

• Atradius KreditversicherungcoreStrategic or Co-development PartnerAtradius is a major surety insurer and key guarantor partner on the Trustlog platform. It provides digital surety issuance through Trustlog's platform, enabling contractors to receive sureties digitally. Located at Opladener Straße 14, 50679 Köln. Contact: Christoph Kohlhepp and Philipp Kerkhoff. Note: As of the current documentation, surety orders cannot yet be transmitted to Atradius via Trustlog directly — this feature is pending activation.
• AXA Versicherung AGcoreStrategic or Co-development PartnerAXA is a major surety insurer connected to Trustlog. Provides digital surety issuance for construction projects. Located in 51171 Köln. Contact via [email protected]. AXA's customers use the AXA Online Portal to request sureties which are then issued digitally via Trustlog.
• ERGO Versicherung AGcoreStrategic or Co-development PartnerERGO is a surety insurer (Bereich Kautionsversicherung) providing digital sureties via Trustlog. Located at ERGO-Platz 2, 40198 Düsseldorf. Contact via [email protected].
• Gothaer Allgemeine Versicherung AGcoreStrategic or Co-development PartnerGothaer provides digital sureties via Trustlog's platform. Located at Gothaer Allee 1, 50969 Köln. Contact via [email protected].
• R+V Allgemeine Versicherung AGcoreStrategic or Co-development PartnerR+V is a major surety insurer connected to Trustlog. Located at Raiffeisenplatz 1, 65189 Wiesbaden. Contact via the R+V contact form or kautionsversicherung page. Provides digital surety issuance via Trustlog.
• Tokio Marine Europe S.A.coreStrategic or Co-development PartnerTokio Marine HCC is a surety insurer providing digital sureties via Trustlog. Located at Friedrichstraße 63, 60323 Frankfurt am Main. Contact via [email protected].
• VHV Allgemeine Versicherung AGcoreStrategic or Co-development PartnerVHV is a major surety insurer connected to Trustlog. Located at VHV-Platz 1, 30177 Hannover. Contact: Alexander Röder. Note: Each subsidiary or branch requires a separate insurance certificate number.
• Württembergische Versicherung AGcoreStrategic or Co-development PartnerWürttembergische provides digital sureties via Trustlog. Located at W&W-Platz 1, 70806 Kornwestheim. Contact via [email protected].
• Zurich Insurance Europe AGcoreStrategic or Co-development PartnerZurich provides surety bonds (Zurich Surety) digitally via Trustlog. Located at Platz der Einheit 2, 60327 Frankfurt am Main. Contacts: Florian Breunig, Dennis Frommhold, Denis Löwe.
• CloudbrixxcoreTechnology or IntegrationCloudbrixx is a modular cloud software for technical real estate management. Its integration with Trustlog enables customers to transmit surety data to Cloudbrixx for seamless further processing, providing greater transparency for cost management. Pricing: €79 net/month or €790 net/year subscription.
• NEVARIS FinancecoreTechnology or IntegrationNEVARIS Finance is an ERP system specifically developed for the construction industry, covering accounting, cost accounting, payroll, materials management, and equipment management. Its integration with Trustlog enables transmission of surety data and PDF documents to NEVARIS. Pricing: €79 net/month or €790 net/year subscription.
• BRZ 365 FinancecoreTechnology or IntegrationBRZ 365 Finance is a cloud-based accounting software specifically developed for the construction industry. Trustlog runs directly in an embedded view (iFrame) within BRZ 365 Finance, enabling customers to manage sureties directly in the software without switching platforms.

Scale indicators4 records

Recent moves1 record

Expansion highlights6 records

Others

• BRZ Deutschland: BRZ is a current technology partner of Trustlog, providing cloud-based construction accounting software (BRZ 365 Finance) with embedded iFrame integration to Trustlog. As a major construction ERP provider, BRZ is both a critical distribution channel and a potential competitive threat if it expanded its own surety management features.
• DocuSign: DocuSign is a current technology partner of Trustlog (used for electronic signatures) and a broad incumbent in digital document workflows. While not a direct surety competitor, DocuSign's e-signature capabilities overlap with parts of the digital bond issuance workflow, and any expansion of DocuSign into structured financial documents could become adjacent competition.
• NEVARIS Bausoftware: NEVARIS is a current ERP integration partner of Trustlog, providing construction-specific financial and operational software to German contractors. As an integrated partner with deep distribution into the same customer base, it is an ecosystem peer that could become a competitive channel if it chose to develop competing surety functionality.

Direct peers

• BauMaster: BauMaster is a German construction software provider offering project management, cost calculation, and ERP solutions for the German Mittelstand construction sector. It serves the same customer profile (German contractors and project developers) and is a direct competitor for construction SaaS wallet share in the DACH market.
• Werkmeister: Werkmeister is a German construction SaaS platform for building contractors covering project management, cost calculation, and order processing. It targets the same German Bauunternehmen and Handwerk customer base as Trustlog with overlapping subscription SaaS economics and is a direct vertical peer.
• Capmo: Capmo is a Munich-based construction SaaS platform focused on defect management, site documentation, and project workflows for German and European contractors. Like Trustlog, it sells into the same construction vertical with mid-market and enterprise field sales, making it a direct functional peer in the German construction tech ecosystem.
• PlanRadar: PlanRadar is a Vienna-based SaaS platform for construction and real estate project management, offering defect tracking, documentation, and reporting workflows. It is a direct European construction tech peer with similar SaaS subscription economics and a comparable customer base of general contractors and project developers.
• 123erfasst: 123erfasst is a German construction SaaS platform focused on time tracking, workforce management, and project documentation for Bauunternehmen. It targets the same German contractor customer base as Trustlog and is a direct vertical peer in the German construction tech stack.

Broad incumbents

• Procore Technologies: Procore is the leading broad construction management SaaS platform with deep penetration into general contractors. While not a direct surety management competitor, it is the dominant workflow layer in the same German and European construction customer base Trustlog targets, making it a strategic benchmark and potential integration or competitive threat.

Emerging players

• Catenda (Dalux): Catenda (now part of Dalux) is a European construction collaboration and BIM platform focused on common data environments for construction projects. It targets the same European contractor and project developer segment with a different (information/BIM-centric) angle, making it a thematic peer in construction digitization.

Market position

Strengths5 records

Weaknesses4 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/Trustlog-109595268537698
• LinkedInlinkedin.com/company/trustlog-gmbh

Compliance3 records

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 Trustlog