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Supplier profile

Ingenieurgesellschaft Dr. Siekmann + Partner mbH

Every public-sector award we hold for this supplier, across Germany, from 17 May 2013 to 9 Sept 2026.

Awards won

53

all time

Attributed value

€35.6m

1 shared, unvalued

Buyers

27

public bodies

Active

2013–2026

first to latest award

Awards by year

2013not attributable1 award
2017€1.1m1 award
2018€459k1 award
2020not attributable1 award
2021€20.7m4 awards
2022€1.4m2 awards
2023€2.4m5 awards
2024€57k4 awards
2025€5.9m20 awards
2026€3.6m14 awards

Who they win from

BuyerAwardsValue
Verbandsgemeinde Ransbach-Baumbach8€5.7m
Abwasserbeseitigung Wöllstein-Wörrstadt AöR3€269k
Abwasserwerk Mittelahr3€1.8m
Abwasserzweckverband Mittleres Eckbachtal (AME)2not attributable
DEGES Deutsche Einheit Fernstraßenplanungs- und -bau GmbH2not attributable
Ortsgemeinde Hillscheid2€598k
Ortsgemeinde Longkamp2€142k
Stadt Bad Münstereifel2€78k
Stadt Lahnstein2€575k
Stadt Selters2€189k

What they win

Construction & Engineering€35.5m51 awardsFacilities Management€78k2 awards

Awards

Showing 26–50 of 53 awards we hold

Page 2 of 3

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How this profile is built

Awards are collected from official public procurement notices and deduplicated so one procurement counts once. Supplier names are grouped across their published spellings: case and punctuation are ignored, and “Ltd” is treated as optional because buyers routinely leave it off. Everything else that marks a different organisation is kept — an LLP, a plc, a CIC and a Teoranta are separate businesses from a Ltd of the same name, as are a parent and a named subsidiary, and none of them are merged here. Where another entry differs from this one only by legal form or a bracketed qualifier it is listed above as possibly the same organisation — a hint for the reader, never a merge: figures are per legal entity and never combined. Value is attributed only where the notice is explicit: the supplier's own itemised amount, or the whole value where they were the sole named supplier. Awards naming several suppliers without a published split are counted and marked shared, never valued, and a framework ceiling is never treated as money any one appointed supplier won. Sterling and euro are never added together. The linked source notice is authoritative.

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