# Ingenieurgesellschaft Dr. Siekmann + Partner mbH

Company profile · SME (from the award notice)

- Legal form: GmbH
- Seat: Thür, Germany

Based on the notices and sources Inteliwert covers; not a complete record. Last checked 9 November 2026.

## Identifiers

- VAT ID: DE163799158

As the covered sources state them.

## Track record in public tenders

Awards in the covered notices over the last 36 months, per CPV division.

| CPV division | Awards | Award value (excl. VAT) | Buyers | Repeat buyers | First award | Last award |
| --- | ---: | ---: | ---: | ---: | --- | --- |
| 71 Architectural, construction, engineering and inspection services | 4 | €1,224,006 | 3 | 1 | 25 August 2026 | 9 November 2026 |

Based on the notices and sources Inteliwert covers; not a complete record.

### Awards

- [Ertüchtigung KA Kamp-Bornhofen - Los 02](https://inteliwert.com/tender/opp_3CMSAZA7VRJ5WM5Q781Z58JSJK/ertuechtigung-ka-kamp-bornhofen-los-02)  
  Buyer: Verbandsgemeinde Loreley, vertreten durch die Verbandsgemeindewerke Loreley · Award value: €122,149.19 excl. VAT · Awarded: 9 November 2026 · CPV 71000000
- [Zentralisierung der Abwasser- und Schlammbehandlung in der VG Ransbach-Baumbach - Anbindung Teichkläranlagen](https://inteliwert.com/tender/opp_ASH6YJ6WMM17GD4C2J887HZ710/zentralisierung-der-abwasser-und-schlammbehandlung-in-der-vg-ransbach-baumbach-a)  
  Buyer: Verbandsgemeinde Ransbach-Baumbach · Award value: €506,442.87 excl. VAT · Awarded: 9 September 2026 · CPV 71000000
- [Zentralisierung der Abwasser- und Schlammbehandlung in der VG Ransbach-Baumbach - KA Haiderbach](https://inteliwert.com/tender/opp_H7QH5VSXYK8C6KDSV65BBGF3G4/zentralisierung-der-abwasser-und-schlammbehandlung-in-der-vg-ransbach-baumbach-k)  
  Buyer: Verbandsgemeinde Ransbach-Baumbach · Award value: €494,819.47 excl. VAT · Awarded: 9 September 2026 · CPV 71000000
- [WW-Hubertus, VGW Ransbach-Baumbach](https://inteliwert.com/tender/opp_MTGGEYJQBVP15ZTE44YQPH4Q8B/ww-hubertus-vgw-ransbach-baumbach)  
  Buyer: Verbandsgemeinde Ransbach-Baumbach, vertreten durch VG-Werke · Award value: €100,594.36 excl. VAT · Awarded: 25 August 2026 · CPV 71000000

## Certifications and prequalification

No certification or prequalification found in the covered sources.

A certification missing here is unknown, not absent.

## Website and LinkedIn

Not found in the indexed notices.

## Open tenders that might fit

*Possible match based on public information*

Companies Inteliwert knows from its sources, not the whole market. Inteliwert does not judge eligibility, fit or chances.

- [Umbau einer Bestandshalle zum Feuerwehrgerätehaus Weitersburg | TGA](https://inteliwert.com/tender/opp_K1QNBMH31WGY5JJW6PNBGP7KSF/umbau-einer-bestandshalle-zum-feuerwehrgeraetehaus-weitersburg-tga)  
  Open · SME (from the award notice) · Buyer: Verbandsgemeinde Vallendar · [Official notice](https://oeffentlichevergabe.de/ui/de/notices/f1837ac2-cd0d-4422-9f5b-5fc6d2b5f8bf), Last checked 12 Nov 2026, 22:31 (UTC+01:00)
  - Won a contract in CPV group 710 (2026-11-09): [Evidence](https://inteliwert.com/tender/opp_3CMSAZA7VRJ5WM5Q781Z58JSJK/ertuechtigung-ka-kamp-bornhofen-los-02), checked 13 Nov 2026
  - Seat in the same district as the place of performance: [Evidence](https://inteliwert.com/company/org_HD6TYMPQR1RDYMTRP3ZX6SK095), checked 13 Nov 2026
  - The contract value is close to the values of its past awards: [Evidence](https://inteliwert.com/tender/opp_K1QNBMH31WGY5JJW6PNBGP7KSF/umbau-einer-bestandshalle-zum-feuerwehrgeraetehaus-weitersburg-tga), checked 12 Nov 2026
  - 4 awards in this field in 36 months, from 3 buyers: [Evidence](https://inteliwert.com/tender/opp_3CMSAZA7VRJ5WM5Q781Z58JSJK/ertuechtigung-ka-kamp-bornhofen-los-02), checked 13 Nov 2026
- [Heinrich-Hertz-Kaserne Daun - Anpassung T-Bereich; Generalplaner - Hochbau / TGA 1](https://inteliwert.com/tender/opp_YVYFNJ072YEMXQ4YFKZ34GJTGM/heinrich-hertz-kaserne-daun-anpassung-t-bereich-generalplaner-hochbau-tga-1)  
  Open · SME (from the award notice) · Buyer: Bundesrepublik Deutschland, vertreten durch das Bundesministerium der Verteidigung, vertreten durch das ABB, vertreten durch den Landesbetrieb für Liegenschafts- und Baubetreuung Niederlassung Trier, vertreten durch die Niederlassungsleitung · [Official notice](https://oeffentlichevergabe.de/ui/de/notices/8ec261bb-21bc-4003-b830-1efafb7a2e15), Last checked 12 Nov 2026, 19:31 (UTC+01:00)
  - Won a contract in CPV group 710 (2026-11-09): [Evidence](https://inteliwert.com/tender/opp_3CMSAZA7VRJ5WM5Q781Z58JSJK/ertuechtigung-ka-kamp-bornhofen-los-02), checked 13 Nov 2026
  - Seat in the same federal state as the place of performance: [Evidence](https://inteliwert.com/company/org_HD6TYMPQR1RDYMTRP3ZX6SK095), checked 13 Nov 2026
  - The buyer calls this tender suitable for SMEs, and the company is an SME: [Evidence](https://inteliwert.com/tender/opp_YVYFNJ072YEMXQ4YFKZ34GJTGM/heinrich-hertz-kaserne-daun-anpassung-t-bereich-generalplaner-hochbau-tga-1), checked 12 Nov 2026
  - 4 awards in this field in 36 months, from 3 buyers: [Evidence](https://inteliwert.com/tender/opp_3CMSAZA7VRJ5WM5Q781Z58JSJK/ertuechtigung-ka-kamp-bornhofen-los-02), checked 13 Nov 2026
- [Schulentwicklung Harsewinkel – Neubau Einfeldsporthalle Thomas- Mann-Str.](https://inteliwert.com/tender/opp_1MVVD81WT1EBHPT1QQ3NRNX51W/schulentwicklung-harsewinkel-neubau-einfeldsporthalle-thomas-mann-str)  
  Open · SME (from the award notice) · Buyer: Stadt Harsewinkel · [Official notice](https://oeffentlichevergabe.de/ui/de/notices/d66b874c-d352-4fda-abdf-ac5b02ed7e73), Last checked 12 Nov 2026, 08:11 (UTC+01:00)
  - Won a contract in CPV group 710 (2026-11-09): [Evidence](https://inteliwert.com/tender/opp_3CMSAZA7VRJ5WM5Q781Z58JSJK/ertuechtigung-ka-kamp-bornhofen-los-02), checked 12 Nov 2026
  - Seat in the same country as the place of performance: [Evidence](https://inteliwert.com/company/org_HD6TYMPQR1RDYMTRP3ZX6SK095), checked 12 Nov 2026
  - The contract value is close to the values of its past awards: [Evidence](https://inteliwert.com/tender/opp_1MVVD81WT1EBHPT1QQ3NRNX51W/schulentwicklung-harsewinkel-neubau-einfeldsporthalle-thomas-mann-str), checked 12 Nov 2026
  - 4 awards in this field in 36 months, from 3 buyers: [Evidence](https://inteliwert.com/tender/opp_3CMSAZA7VRJ5WM5Q781Z58JSJK/ertuechtigung-ka-kamp-bornhofen-los-02), checked 12 Nov 2026
- [Gemeinde Henstedt-Ulzburg – Erweiterung, Umbau und Sanierung OGT GS Rhen](https://inteliwert.com/tender/opp_6857ZPY0DE1981G0ZEKA8G9DXS/gemeinde-henstedt-ulzburg-erweiterung-umbau-und-sanierung-ogt-gs-rhen)  
  Open · SME (from the award notice) · Buyer: Gemeinde Henstedt-Ulzburg · [Official notice](https://oeffentlichevergabe.de/ui/de/notices/8ba10b76-b6df-45d8-8590-5bcd02e4b47d), Last checked 12 Nov 2026, 07:31 (UTC+01:00)
  - Won a contract in CPV group 710 (2026-11-09): [Evidence](https://inteliwert.com/tender/opp_3CMSAZA7VRJ5WM5Q781Z58JSJK/ertuechtigung-ka-kamp-bornhofen-los-02), checked 12 Nov 2026
  - Seat in the same country as the place of performance: [Evidence](https://inteliwert.com/company/org_HD6TYMPQR1RDYMTRP3ZX6SK095), checked 12 Nov 2026
  - The buyer calls this tender suitable for SMEs, and the company is an SME: [Evidence](https://inteliwert.com/tender/opp_6857ZPY0DE1981G0ZEKA8G9DXS/gemeinde-henstedt-ulzburg-erweiterung-umbau-und-sanierung-ogt-gs-rhen), checked 12 Nov 2026
  - 4 awards in this field in 36 months, from 3 buyers: [Evidence](https://inteliwert.com/tender/opp_3CMSAZA7VRJ5WM5Q781Z58JSJK/ertuechtigung-ka-kamp-bornhofen-los-02), checked 12 Nov 2026
- [Institutsneubau Psychologie - HLS Pl](https://inteliwert.com/tender/opp_Z7SHW92C589DK6Q6GY60QBZD56/institutsneubau-psychologie-hls-pl)  
  Open · SME (from the award notice) · Buyer: Land Hessen, vertreten durch den Landesbetrieb Bau und Immobilien Hessen, Zentrale Vergabe · [Official notice](https://oeffentlichevergabe.de/ui/de/notices/aa0c94b6-99e0-4547-8b6f-2d9dc5722a6e), Last checked 12 Nov 2026, 22:31 (UTC+01:00)
  - Won a contract in CPV group 710 (2026-11-09): [Evidence](https://inteliwert.com/tender/opp_3CMSAZA7VRJ5WM5Q781Z58JSJK/ertuechtigung-ka-kamp-bornhofen-los-02), checked 13 Nov 2026
  - Seat in the same country as the place of performance: [Evidence](https://inteliwert.com/company/org_HD6TYMPQR1RDYMTRP3ZX6SK095), checked 13 Nov 2026
  - The buyer calls this tender suitable for SMEs, and the company is an SME: [Evidence](https://inteliwert.com/tender/opp_Z7SHW92C589DK6Q6GY60QBZD56/institutsneubau-psychologie-hls-pl), checked 12 Nov 2026
  - 4 awards in this field in 36 months, from 3 buyers: [Evidence](https://inteliwert.com/tender/opp_3CMSAZA7VRJ5WM5Q781Z58JSJK/ertuechtigung-ka-kamp-bornhofen-los-02), checked 13 Nov 2026
- [Umbau Grundschule Großenbrode zur OGS - Fachplanung Tragwerksplanung](https://inteliwert.com/tender/opp_0Y4266SN8EF13AP4Y1MKBQQ8B8/umbau-grundschule-grossenbrode-zur-ogs-fachplanung-tragwerksplanung)  
  Open · SME (from the award notice) · Buyer: Amt Oldenburg-Land für die Gemeinde Großenbrode · [Official notice](https://oeffentlichevergabe.de/ui/de/notices/b9037a40-f163-4765-b654-901238414c14), Last checked 12 Nov 2026, 19:31 (UTC+01:00)
  - Won a contract in CPV group 710 (2026-11-09): [Evidence](https://inteliwert.com/tender/opp_3CMSAZA7VRJ5WM5Q781Z58JSJK/ertuechtigung-ka-kamp-bornhofen-los-02), checked 13 Nov 2026
  - Seat in the same country as the place of performance: [Evidence](https://inteliwert.com/company/org_HD6TYMPQR1RDYMTRP3ZX6SK095), checked 13 Nov 2026
  - The buyer calls this tender suitable for SMEs, and the company is an SME: [Evidence](https://inteliwert.com/tender/opp_0Y4266SN8EF13AP4Y1MKBQQ8B8/umbau-grundschule-grossenbrode-zur-ogs-fachplanung-tragwerksplanung), checked 12 Nov 2026
  - 4 awards in this field in 36 months, from 3 buyers: [Evidence](https://inteliwert.com/tender/opp_3CMSAZA7VRJ5WM5Q781Z58JSJK/ertuechtigung-ka-kamp-bornhofen-los-02), checked 13 Nov 2026
- [Institutsneubau Psychologie - ELT Pl](https://inteliwert.com/tender/opp_8DR1QWT6JTXKW7N2SBDKWYHCNB/institutsneubau-psychologie-elt-pl)  
  Open · SME (from the award notice) · Buyer: Land Hessen, vertreten durch den Landesbetrieb Bau und Immobilien Hessen, Zentrale Vergabe · [Official notice](https://oeffentlichevergabe.de/ui/de/notices/e6eb585e-81a6-4e42-8776-f5464a221fbe), Last checked 12 Nov 2026, 18:31 (UTC+01:00)
  - Won a contract in CPV group 710 (2026-11-09): [Evidence](https://inteliwert.com/tender/opp_3CMSAZA7VRJ5WM5Q781Z58JSJK/ertuechtigung-ka-kamp-bornhofen-los-02), checked 13 Nov 2026
  - Seat in the same country as the place of performance: [Evidence](https://inteliwert.com/company/org_HD6TYMPQR1RDYMTRP3ZX6SK095), checked 13 Nov 2026
  - The buyer calls this tender suitable for SMEs, and the company is an SME: [Evidence](https://inteliwert.com/tender/opp_8DR1QWT6JTXKW7N2SBDKWYHCNB/institutsneubau-psychologie-elt-pl), checked 12 Nov 2026
  - 4 awards in this field in 36 months, from 3 buyers: [Evidence](https://inteliwert.com/tender/opp_3CMSAZA7VRJ5WM5Q781Z58JSJK/ertuechtigung-ka-kamp-bornhofen-los-02), checked 13 Nov 2026
- [Interessenbekundung Brandschutz\_Gedenkstätte Jamlitz\_Bildungs-und Informationszentrum](https://inteliwert.com/tender/opp_419646ATE7A9ERBEF6FZ96WR4X/interessenbekundung-brandschutz-gedenkstaette-jamlitz-bildungs-und-informationsz)  
  Open · SME (from the award notice) · [Official notice](https://oeffentlichevergabe.de/ui/de/notices/3c7f294e735ea433), Last checked 12 Nov 2026, 09:30 (UTC+01:00)
  - Won a contract in CPV group 710 (2026-11-09): [Evidence](https://inteliwert.com/tender/opp_3CMSAZA7VRJ5WM5Q781Z58JSJK/ertuechtigung-ka-kamp-bornhofen-los-02), checked 12 Nov 2026
  - Seat in the same country as the place of performance: [Evidence](https://inteliwert.com/company/org_HD6TYMPQR1RDYMTRP3ZX6SK095), checked 12 Nov 2026
  - 4 awards in this field in 36 months, from 3 buyers: [Evidence](https://inteliwert.com/tender/opp_3CMSAZA7VRJ5WM5Q781Z58JSJK/ertuechtigung-ka-kamp-bornhofen-los-02), checked 12 Nov 2026
- [PPSH Visualisierungstechnik\_Fachplanung RLT und GA](https://inteliwert.com/tender/opp_WG3Q30KAQWZQ42BX8MXZ1AC2E6/ppsh-visualisierungstechnik-fachplanung-rlt-und-ga)  
  Open · SME (from the award notice) · Deadline: 20 Nov 2026, 11:00 (UTC+01:00) · [Official notice](https://oeffentlichevergabe.de/ui/de/notices/7ed5b75a0ca8f6c4), Last checked 12 Nov 2026, 06:30 (UTC+01:00)
  - Won a contract in CPV group 710 (2026-11-09): [Evidence](https://inteliwert.com/tender/opp_3CMSAZA7VRJ5WM5Q781Z58JSJK/ertuechtigung-ka-kamp-bornhofen-los-02), checked 12 Nov 2026
  - Seat in the same country as the place of performance: [Evidence](https://inteliwert.com/company/org_HD6TYMPQR1RDYMTRP3ZX6SK095), checked 12 Nov 2026
  - 4 awards in this field in 36 months, from 3 buyers: [Evidence](https://inteliwert.com/tender/opp_3CMSAZA7VRJ5WM5Q781Z58JSJK/ertuechtigung-ka-kamp-bornhofen-los-02), checked 12 Nov 2026
- [Planungsleistungen für den Neubau der Sporthalle Karlshagen](https://inteliwert.com/tender/opp_0ZSHZXZEP00QHZF9RGNNJQRG3K/planungsleistungen-fuer-den-neubau-der-sporthalle-karlshagen)  
  Open · SME (from the award notice) · Buyer: Gemeinde Ostseebad Karlshagen über Amt Usedom-Nord · [Official notice](https://oeffentlichevergabe.de/ui/de/notices/80f49ae1-722a-4b09-a483-0c28e6b4d160), Last checked 12 Nov 2026, 08:31 (UTC+01:00)
  - Won a contract in CPV group 710 (2026-11-09): [Evidence](https://inteliwert.com/tender/opp_3CMSAZA7VRJ5WM5Q781Z58JSJK/ertuechtigung-ka-kamp-bornhofen-los-02), checked 12 Nov 2026
  - Seat in the same country as the place of performance: [Evidence](https://inteliwert.com/company/org_HD6TYMPQR1RDYMTRP3ZX6SK095), checked 12 Nov 2026
  - 4 awards in this field in 36 months, from 3 buyers: [Evidence](https://inteliwert.com/tender/opp_3CMSAZA7VRJ5WM5Q781Z58JSJK/ertuechtigung-ka-kamp-bornhofen-los-02), checked 12 Nov 2026

## Is this your company?

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## About this profile

Each fact on this page shows its source: a public notice, an open-data register (GLEIF, Wikidata) or the company’s own website. Inteliwert does not rate companies and does not judge eligibility, fit or chances.

**Based on the notices and sources Inteliwert covers; not a complete record.** Last checked 9 November 2026.

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Page: https://inteliwert.com/company/org_HD6TYMPQR1RDYMTRP3ZX6SK095/ingenieurgesellschaft-dr-siekmann-partner-mbh

Inteliwert is a product of Bandpey GmbH, an international data and AI software company in Munich, Germany, founded and led by Roozbeh Bandpey. Bandpey's products: Facthory, Emolysis, Copolly and Inteliwert.

Inteliwert on LinkedIn: https://www.linkedin.com/company/intelliwert, GitHub: https://github.com/inteliwertai.