Grand Paris Seine Ouest · Hauts-de-Seine · Île-de-France · 121,391 residents · Mayor: Pierre-Christophe Baguet
Boulogne-Billancourt
€271.3 million spent in 2025.
€2,235 per resident · Towns of the same size: €1,861
Boulogne-Billancourt’s spending by policy area
Click a line to see what it pays for
The 3 other items (1%)
Source: the town’s 2025 accounts (DGFiP), by public policy.
Where the money goes
The €271.3M spent in 2025, by who receives it.
Source: the town’s 2025 accounts (DGFiP).
Contracts state a maximum amount for their whole term, often several years. That amount differs from what was paid. Purchases, services and works paid to companies by the town in 2025: €58.6M (its accounts).
Click a name to see its contracts
- Les Mots et les Choses2 contracts over 4 years · at most ~€460k a year on average · framework agreements: maximum envelopesup to €1.8M
- Ineo Infracom (Equans Digital Cyber & It Solutions Ile de France; Villes et Territoires Connectes)1 contract over 4 years · at most ~€256k a year on average · framework agreement: maximum envelopeup to €1M
- Ciril Group1 contract over 3.5 years · at most ~€283k a year on average · framework agreement: maximum envelopeup to €992k
- Groupement d'Achat pour Mediatheques (Gamannecy)1 contract over 4 years · at most ~€210k a year on average · framework agreement: maximum envelopeup to €840k
- Eri1 contract over 12 months · framework agreement: maximum envelopeup to €780k
- Bibliotheca France SAS1 contract over 4 years · at most ~€167k a year on average · framework agreement: maximum envelopeup to €667k
- Savoirsplus1 contract over 4 years · at most ~€150k a year on average · framework agreement: maximum envelopeup to €600k
18 contracts signed in 2024 · €8.8M before tax
What the town paid in 2024 for these kinds of purchase, from its accounts
- Books, newspapers and magazinesall suppliers together · contracts in the list: Les Mots et les Choses, Savoirspluspaid €382k
- Phone and internetall suppliers together · contract in the list: Ineo Infracom (Equans Digital Cyber & It Solutions Ile de France; Villes et Territoires Connectes)paid €163k
The accounts say how much was paid for each kind of purchase, not to which company. A purchase paid by another public body (joint order, shared service) is not in them.
Why this total differs from the €58.6M of purchases, services and works paid to companies
These are the amounts of the contracts signed in the year, over their whole length, not what was paid. The money paid in a year also goes to older contracts and to purchases too small to be published (under €40,000 excl. VAT). For a framework agreement, the amount is a ceiling.
Investment and works
€19.9M of capital spending in 2025 (building, renovation, equipment), €164 per resident. Towns of the same size: €340.
Click a building site to see the contract
- Production de froid de la patinoire et chaleur pour la piscine : équipements frigorifiques2023 · Culture, sport and youth · Dalkia Froid Solutions€1.2M
- Production de froid de la patinoire et chaleur récupérée pour la piscine : structure et étanchéité2023 · Culture, sport and youth · FT Bâtiment€235k
- Traitement des peintures au plomb des charpentes métalliques du marché Billancourt2023 · Mtbconcept SASU€214k
Largest works contracted since 2023, among published contracts. Amounts planned at signature, often spread over several years.
In addition, €29.6M given to other bodies for their own equipment (joint funding, energy syndicate…).
Source: the town’s 2025 accounts (DGFiP), by public policy.
Revenue and financing
Revenue: €240M · borrowing: €33M · spending: €271.4M.
Source: the town’s 2025 accounts (DGFiP).
Debt and taxation
Accounts 2025, main budget (excluding annex budgets such as water), except debt and savings: main and annex budgets together (OFGL consolidated accounts). Per resident: amount divided by the total population (Insee, in force in the year of the accounts). Sources: DGFiP, OFGL. “Towns of the same size”: median of the 41 towns of 100,000 inhabitants and over.
Who spends for the residents of Boulogne-Billancourt
Spending per resident in 2025 of each public body the town belongs to, and what each one pays for.
- TownBoulogne-BillancourtPrimary schools, canteens, local streets, civil registry€2,235 per resident
- IntercommunalityGrand Paris Seine OuestWaste, water, urban transport, economic development€692 per resident
- DépartementHauts-de-SeineMinimum income, elderly and disability care, middle schools, county roads€1,247 per resident
- RegionÎle-de-FranceHigh schools, regional trains, training, business support€465 per resident
Each amount is what the body spends per resident, from its accounts (DGFiP). Do not add them up: part of the money passes from one body to another.
Understanding these figures
Running costs and works: what is the difference?
Running costs are each year’s spending: wages, energy, upkeep, grants. Works create or renovate something that lasts: a school, a road, a sports hall.
How is the comparison with towns of the same size made?
The towns of 100,000 inhabitants and over are ranked from lowest to highest value; the median is the value in the middle. A value above or below the median is not a judgement: it depends on the area, the population and the powers held by the intercommunality.
Where do these figures come from?
From the town’s accounts kept by the public accountant (DGFiP), the local finance observatory (OFGL) and public procurement data. Qipu changes no amount.
Elected officials and staff of Boulogne-Billancourt: to report a figure to correct or add context, write to Qipu.
Compare with Nanterre or with another town:
Page published by Qipu, independent of the town · Sources and method
DGFiP balance-sheet accounts (nature axis) · OFGL (consolidated towns base) · Public procurement — DECP (data.gouv.fr) · National register of elected officials, archived versions 2020-2025 · 2025. The method · See the source