COMPANY PROFILE

widak siegert GmbH

GmbH (Limited Liability Company)BerlinArchitectural activities

FOUNDED

2011

15+ years active

TRADE REGISTER

HRB 135749

Berlin (Charlottenburg)

INDUSTRY

Architectural activities

SIZE CLASS

Small enterprise

QUICK CHECK

Key questions answered

  • What does the company do?

    Die Erstellung von Planungs-, Architekten- und Bauingenieursleistungen.

  • Who leads it?

    Rüdiger Siegert, Rolf Widak

  • How large is it?

    Small enterprise

  • How stable is it?

    Stability assessment in Plus profile

Financial figures, signals and contact data are in the Plus profile.Create a free account
INDUSTRY & PURPOSE

Business activity

Die widak siegert GmbH ist auf die Erstellung von Planungs-, Architekten- und Bauingenieursleistungen spezialisiert. Das Unternehmen bietet Dienstleistungen im Bereich Architektur und Ingenieurwesen an, einschließlich der Bearbeitung von Leistungsphasen nach HOAI für Neubau- und Erweiterungsprojekte. Die Zielgruppe umfasst sowohl öffentliche Auftraggeber als auch private Bauträger in der Region Berlin und Umgebung. Besondere Merkmale sind die langjährige Erfahrung und die umfassende Bearbeitung komplexer Bauprojekte, weshalb widad siegert GmbH als zuverlässiger Partner gilt.

Industry (WZ2008)

Architectural activities

WZ M71.11

Size class

Small

Business purpose

Die Erstellung von Planungs-, Architekten- und Bauingenieursleistungen.

MASTER DATA

Address & Contact

Grunewaldstraße 18, 10823 Berlin

Map data © OpenStreetMap

OSM ↗
COMMERCIAL REGISTER

Legal essentials

Register entry
HRB 135749 (Berlin (Charlottenburg))
Legal form
GmbH (Limited Liability Company)
Founded
31 Jul 2011
Share capital
€25,000
VAT ID
LEI
529900BNT80761X2S793
Representation rules
Jeder Geschäftsführer vertritt die Gesellschaft allein.
ADD-ON SERVICE

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FINANCIALS

Annual statements

Balance sheet
€5,307,121
Year
2023

10 annual statements are on file for this company.

Revenue, result, equity and the multi-year history stay in the Plus profile.
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SIGNALS

Signals

Available in Plus profile

Four dimensions from hard data — age, financials, HRB events, compliance. The ratings themselves are shown in the Plus profile only.

  • Continuity1
    Available in Plus profile
  • Financials2
    Available in Plus profile
  • Management3
    Available in Plus profile
  • Legal status4
    Available in Plus profile
MANAGEMENT

Directors & officers

Managing directors

  • Rüdiger Siegert

    Managing Director

  • Rolf Widak

    Managing Director

AI CONTACT SEARCH

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AI NEWS SEARCH

Recent news

AI-powered research across press, social media and job postings from the last six months.

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EVENTS

Commercial register history

No events on file.

DEVELOPERS

Programmatic access

LIVE

Three ways to access this company's data programmatically:

  • AGENT-CARD

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  • API

    Full, authenticated data via the Implisense API v2 (API key required).

  • MCP

    MCP server live at mcp.implisense.com (FastMCP, Bearer auth) — usable with ChatGPT, Claude, and your own agents.

What the Plus profile adds

The same page, fully populated — plus the research services locked here.

  • Revenue, result and equity across every available year
  • All four signals with rationale and source
  • Contact search: names, roles, phone, email, LinkedIn
  • Shareholder list from the official register portal
  • News research covering the last six months
  • The full commercial register history
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Last updated: 26/09/2025