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Customer stories

Representative case studies.

Detailed representative profiles of KOLOSALTech projects: scope, challenge, solution, results, budget. Generic data until our first real clients have authorized publication.

SME · B2B Services
Representative profile

IT modernization for a Rennes-based SME — 30 seats

B2B services SME, 30 staff (representative profile)

Challenge

Fleet of 30 ageing PCs (5–7 years old), no MFA, no backup in place, date of last tested backup unknown. High ransomware risk. A business-critical chartered-accountancy firm.

Solution deployed

Fleet refresh: 30 × Dell Latitude 5550 + 30 × 24'' Dell P2425H monitors. Migration to Microsoft 365 Business Premium (includes Defender + Intune). Synology RS2423RP+ backup with immutability + Veeam cloud backup. MFA rolled out across the board. Written incident procedures + 2h user training.

Seats refreshed
30
Availability after rollout
≥ 99 %
End-to-end lead time
5 weeks
Ransomware risk
−85 %
Duration
5 weeks
Budget
≈ €52,000 ex. VAT

“The KOLOSAL team guided us without jargon. We understand what we're buying and we understand why.”

— Management (chartered-accountancy firm, representative profile)
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Healthcare · Mali
Representative profile

IT equipment for a medical practice in Bamako

Medical practice, 8 practitioners (representative profile)

Challenge

Opening of a medical practice in Bamako: all IT to be built from scratch. Constraints: patient confidentiality, frequent power outages, 4G-only internet, no on-site manufacturer after-sales service.

Solution deployed

Hardware pack sourced in France: 8 × Lenovo ThinkPad T14 (MIL-STD-810H) + 1 HPE MicroServer Gen10+ + Synology DS1522+ (immutable backup) + APC 3kVA UPS + FortiGate 4G/LTE router with backup. Complete customs documentation. Air freight Paris–Bamako. Remote commissioning.

Lead time France → Bamako
4 weeks
Customs documents
100 % compliant
Patient data encrypted
100 %
Continuity after network outage
Guaranteed 4G + UPS
Duration
4 weeks (sourcing + transport + commissioning)
Budget
≈ €28,000 ex. VAT (hardware + transport + service)
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Education
Representative profile

30-seat computer room for a vocational high school

French vocational high school (representative profile)

Challenge

Setting up a computer room for an IT Services higher technician diploma. Constrained budget, managed by 1 IT lead shared across 5 schools, educational filtering compliant with the education authority's requirements.

Solution deployed

30 × Dell OptiPlex PCs + 30 × 24'' monitors + Wi-Fi 6 Aruba multi-AP + FortiGate firewall with educational filtering + Microsoft Intune Education for MDM + Epson interactive display at the teacher's station. Standard image prepared with all coursework software installed.

Seats installed
30
Installation time during the holidays
5 days
Wi-Fi availability
≥ 99 %
Estimated annual maintenance
1–2 days/year
Duration
5-day installation during the school holidays
Budget
≈ €32,000 ex. VAT
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Public sector · France
Representative profile

IT modernization for a town hall serving 5,000 residents

French municipality, 5,000 residents (representative profile)

Challenge

Town hall with 12 staff and a public reception desk. Heterogeneous PC fleet (Win 10, some out of support), no continuity plan, paper archives not digitized, GDPR compliance undocumented. ANSSI audit scheduled in 8 months.

Solution deployed

Refresh of 12 × HP EliteBook 840 G11 + HPE ProLiant DL360 Gen11 server + Synology RS1221+ NAS with immutable backup + APC 3kVA UPS + Bitdefender GravityZone Premium EDR + Microsoft Entra MFA. GDPR compliance: processing register, legal notices, 2h staff training. Streamlined BCP/DRP documentation.

Seats refreshed
12
ANSSI audit prepared
NIS2-ready compliance targeted
End-to-end lead time
7 weeks
Public-procurement eligible
UGAP via administrative mandate
Duration
7 weeks
Budget
≈ €38,000 ex. VAT (hardware + service + training)

“No jargon, no overcharging. They showed us how every line item is justified for administrative scrutiny.”

— Town clerk (representative profile)
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Healthcare · France
Representative profile

Multi-site medical practice — 3 clinics, 18 practitioners

Multi-disciplinary medical group (representative profile)

Challenge

3 merged medical practices. Each site had its own IT, incompatible with the others. Line-of-business software (EPR/shared medical record) to harmonize, patient records to centralize, strict HDS (health-data hosting) and GDPR compliance, tested backup required by the certifier.

Solution deployed

Hybrid cloud architecture: central HPE ProLiant DL360 server in an HDS-certified datacenter + 3 Synology DS923+ mini-NAS per site (cache + local backup) + site-to-site VPN + Sophos Intercept X EDR + Veeam Backup with a hardened repository + immutable Wasabi cloud storage (Paris) for the offsite copy. Phased migration over 6 weeks with parallel running.

Sites interconnected
3
Practitioners migrated
18 + 12 secretaries
Patient records encrypted
100 %
Restore testing
Automated monthly
Duration
8 weeks (audit + deployment + testing)
Budget
≈ €75,000 ex. VAT (hardware + services + 1-year licenses)
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NGO · West Africa
Representative profile

Sahel NGO — 8 field offices with solar mini-datacenters

Humanitarian NGO, 8 sites in Burkina–Mali (representative profile)

Challenge

NGO with 8 field offices in isolated areas of Burkina/Mali/Niger. Power outages 6–10h/day, no fiber, local teams without IT expertise. Needs: centralized project dashboard, secured beneficiary data, technical self-sufficiency for local teams.

Solution deployed

Standardized architecture across all 8 sites: 1 mini-datacenter per office (1 HPE MicroServer Gen10+ server + Synology DS423+ + 3kVA UPS + Starlink router) + 8 × 4kWp solar kits with Pylontech batteries (14h autonomy). Veeam synchronization to a central Paris cloud. 2-day training for 1 local lead per site. France-based hotline in French, 8am–7pm.

Offices equipped
8 (BF, ML, NE)
Power continuity
Solar, 14h autonomy
Internet continuity
Starlink + 4G backup
Local leads trained
8
Total deployment time
5 months
Duration
5 months (bulk sourcing + transit + phased deployment)
Budget
≈ €280,000 ex. VAT total (8 sites + power + transit)

“Before, each office ran in isolation. Now we steer our 8 sites from Paris, and the field has the technical autonomy to handle 90% of incidents.”

— NGO operations coordinator (representative profile)
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NGO · Burkina Faso
Representative profile

Mobile equipment for an NGO on mission in Burkina Faso

Humanitarian NGO (representative profile)

Challenge

6-month field mission in a Sahel region, a team of 12 people. Extreme conditions: 45°C, dust, power outages, limited internet. Beneficiary data to protect.

Solution deployed

12 × Lenovo ThinkPad T14 MIL-STD-810H with BitLocker + 4 × Samsung Galaxy XCover tablets + 4G/LTE router + Starlink Mini as backup + 3kVA UPS + Victron 5kWp solar kit. VPN + MFA across the board. 1-day team training before departure.

Field seats
12 + 4 tablets
Internet continuity
4G + Starlink backup
Power autonomy
Solar + UPS
Data encrypted by default
100 %
Duration
6 weeks (sourcing + export + deployment)
Budget
≈ €35,000 ex. VAT (hardware + power + training)
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Education · France
Representative profile

Vocational high school — IT Services computer room, 30 seats + Wi-Fi 6E

Public vocational high school (representative profile)

Challenge

Creating a new computer room for an IT Services higher technician diploma. Public-procurement budget, managed by 1 IT lead shared across 5 schools, educational filtering compliant with the education authority's requirements. Tight schedule: installation during the All Saints' school holidays.

Solution deployed

30 × Lenovo ThinkCentre M75q + 30 × 24'' Dell P2425H monitors + Wi-Fi 6E Aruba Instant On with 4 APs + FortiGate 60F with FortiGuard Education + Intune Education for endpoint MDM + Epson interactive display at the teacher's station. Standardized image prepared with coursework software installed (Office, Visual Studio Code, Wireshark, VirtualBox).

Seats installed
30 + teacher display
Installation time during the holidays
5 days
Wi-Fi availability
≥ 99.5 %
Compliant educational filtering
Education authority approved
Estimated annual maintenance
1–2 days/year
Duration
5-day installation during the school holidays
Budget
≈ €38,000 ex. VAT (hardware + service + education licenses)

“The team met the deadline to the day. Every piece of coursework software worked at first login.”

— IT lead (vocational high school, representative profile)
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Construction · France
Representative profile

Construction — mobile site IT kit, 15 seats + connectivity

Construction company (representative profile)

Challenge

Kick-off of a major 18-month project (hospital renovation), a team of 15 on site. No fixed offices: portable cabins and containers. Needs: estimating workstation, BIM remote work, security for public-procurement documents, reliable connectivity without fiber hookup.

Solution deployed

15 × Lenovo ThinkPad T14 G5 MIL-STD-810H (shock + dust) + 15 × HP 14'' portable monitors + an HP ZBook Fury G11 workstation for BIM + on-site HPE MicroServer Gen10+ server with Veeam backup + Synology DS923+ for file sharing + Starlink Business + secondary 4G FortiExtender + APC 3kVA UPS + ruggedized Wi-Fi 6E.

Mobile seats deployed
15 + 1 BIM workstation
Starlink connectivity uptime
≥ 99.2 %
End-to-end lead time
3 weeks
Immutable backup
Daily + Wasabi cloud
4G fallback during Starlink outage
Automatic FortiExtender
Duration
3 weeks (sourcing + on-site commissioning)
Budget
≈ €65,000 ex. VAT (hardware + connectivity + site setup)
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Agri-food · France
Representative profile

Agricultural cooperative — IT modernization across 3 sites + product traceability

Agricultural cooperative, 40 staff (representative profile)

Challenge

Cooperative with 3 sites (head office + 2 silos). Ageing PC fleet, no centralization, line-of-business software on a single fragile workstation, product traceability required by IFS + BRC. No IT department; managed by an administrative officer with no IT training.

Solution deployed

40 × Dell Latitude 3550 (rugged entry-level) + an HPE ProLiant DL360 Gen11 server hosted in an OVH Strasbourg datacenter (sovereignty + redundancy) + FortiGate SD-WAN connecting the 3 sites + immutable Veeam backup to Wasabi Paris + Microsoft 365 Business Premium (Defender + Intune) + GDPR: outsourced DPO + written procedures + half-day training per site. Migration of the line-of-business software to a centralized client-server model.

Seats refreshed
40 across 3 sites
Line-of-business software centralized
OVH Strasbourg server
Multi-site availability
≥ 99.5 %
IFS/BRC traceability compliance
Annual audit passed
End-to-end lead time
10 weeks
Duration
10 weeks (audit + sourcing + phased migration)
Budget
≈ €95,000 ex. VAT (hardware + services + first-year licenses)
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E-commerce · France
Representative profile

E-commerce micro-business — PrestaShop → Shopify migration + 12-seat IT

E-commerce micro-business, 12 staff (representative profile)

Challenge

E-commerce micro-business self-managing PrestaShop for 8 years. Heavy maintenance, obsolete plugins, mediocre performance, heterogeneous IT fleet (Mac + PC). Decision to migrate to Shopify + a complete IT overhaul.

Solution deployed

PrestaShop → Shopify Plus migration (with a certified Shopify Partner) in 6 weeks: customer/order/product/catalog data. On the IT side: 8 × MacBook Air M3 + 4 × Dell XPS 15 (creative team vs. admin) + Jamf Pro for Mac MDM + Microsoft 365 Business Premium + Defender + Synology DS923+ for legacy archives + Wasabi backup + a new Ubiquiti UniFi network.

Shopify Plus migration
6 weeks end-to-end
Seats refreshed
12 (Mac + PC)
Site performance (PageSpeed Lighthouse)
92 → 98
Site conversion after migration (vs. before)
+18 %
Monthly IT costs
Reduced −35 %
Duration
6 weeks (site migration) + 3 weeks (IT)
Budget
≈ €48,000 ex. VAT (Shopify migration + hardware + IT setup)
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Legal · France
Representative profile

Law firm — end-to-end encryption + strict GDPR, 8 practitioners

Partnership law firm (representative profile)

Challenge

Firm with 8 partner lawyers. Highly confidential client files (M&A, criminal litigation). The Bar Association audit requires end-to-end confidentiality + access traceability. Zero tolerance for data leaks. Documents currently exchanged with clients via unencrypted email.

Solution deployed

Migration M365 Business Premium → M365 E5 (Defender + DLP + Encryption + Compliance Manager) + 8 × MacBook Pro 14'' M4 with FileVault enforced + Jamf Pro MDM + a Wallix PAM bastion for server access (French sovereignty + ANSSI CSPN) + Olvid (sovereign French encrypted messaging) for client exchanges + Universign electronic signature + an outsourced DPO specializing in the legal sector + a half-day cyber training for the partners.

Seats secured with FileVault
8 (100 %)
Server access via PAM bastion
100 % logged
Client exchanges encrypted
Olvid (sovereign FR)
Bar Association compliance
Annual audit passed
Deployment time
8 weeks
Duration
8 weeks (audit + migration + training)
Budget
≈ €72,000 ex. VAT (hardware + services + first-year licenses)

“We moved from a patched-together IT setup to a security posture on par with our corporate clients. The Bar Association is reassured.”

— Senior partner (law firm, representative profile)
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Animal health · France
Representative profile

Veterinary clinic — 4 practitioners: IT modernization + patient records

Veterinary clinic (representative profile)

Challenge

Veterinary clinic with 4 practitioners, 8 staff in total. Line-of-business software (Vetocom) on a single fragile PC, manual weekly backup on a USB stick, a crowded reception area with no public Wi-Fi, undocumented GDPR (animal + owner records).

Solution deployed

HPE ProLiant MicroServer Gen10+ server for a centralized Vetocom + 4 Dell OptiPlex 7020 vet workstations + 4 Lenovo ThinkPad E14 laptops in the consultation rooms + 1 reception PC + Synology DS923+ with immutable Veeam backup to Wasabi Paris + UniFi Wi-Fi 6 (segmented pro network + guest network) + APC 1500VA UPS + M365 Business Basic for email. GDPR: processing register + reception notices + owner rights procedure.

Seats refreshed
9 (vet + admin + reception)
Line-of-business software centralized + backed up
Daily, immutable
Separate pro + guest Wi-Fi
GDPR compliant
End-to-end lead time
3 weeks
Duration
3 weeks (sourcing + deployment over a closed weekend)
Budget
≈ €22,000 ex. VAT (hardware + service + first-year cloud)
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Automotive · France
Representative profile

Car garage — 12 staff: workshop IT + OBD-II diagnostics

Independent multi-brand garage (representative profile)

Challenge

Multi-brand car garage, 12 staff (4 mechanics, 2 bodywork technicians, 3 reception/estimates, 3 admin). Ageing OBD-II diagnostic stations on obsolete Windows 7, Cegid accounting on a single PC with no backup, an SME fleet with no MFA, no client badging.

Solution deployed

8 × ruggedized workshop PCs, Dell OptiPlex micro form factor (shock + vibration) + 4 × ThinkPad Yoga 360° touchscreens for reception/estimates + an HPE MicroServer for a centralized Cegid + Synology RS1221+ immutable backup + FortiGate 60F + Wi-Fi 6 Aruba Instant On with 2 APs + Microsoft 365 Business Standard + Defender for Business + Intune. Renewal of Windows 11 Pro licenses and OBD-II diagnostic software. 2h team training.

Seats refreshed
12
Off Windows 7
100 %
MFA enabled
100 % of accounts
Immutable Cegid backup
Daily
End-to-end lead time
5 weeks
Duration
5 weeks (sourcing + phased deployment with no downtime)
Budget
≈ €28,000 ex. VAT (hardware + service + first-year licenses)

“We used to dread losing Cegid if the PC died. Now I sleep easy. Workshop diagnostics run 3× faster.”

— Garage owner (representative profile)
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Hospitality · France
Representative profile

30-room hotel — IT modernization + guest Wi-Fi + Mews PMS

Independent 30-room 3-star hotel (representative profile)

Challenge

Independent 30-room 3-star hotel. Mediocre in-room Wi-Fi (1 saturated all-in-one router), buggy legacy PMS (old Reservit), no separate staff/guest network, mounting deco-channel costs, PCI DSS compliance impossible with the current stack. Aim: upgrade to Mews cloud PMS + revive online reputation.

Solution deployed

PMS migration Reservit → Mews Cloud (channel manager + booking engine + Stripe Hotel payments integrations) + 30 × Wi-Fi 6 UniFi U6 Lite access points (1 per room corridor) + a Cisco SG350 PoE+ core switch + strict VLAN segmentation (staff, guests, IoT TV, payments) + FortiGate 60F + 4 × Dell OptiPlex admin/reception workstations + a room-badge reader compatible with Salto Systems + a rack UPS + Synology NAS backup + Wi-Fi monitoring via the UniFi Network Application. PCI DSS level 4 compliance achieved via segmentation + a PCI-compliant Mews.

Wi-Fi 6 APs deployed
30 + corridors
Room coverage
≥ 99 % at 100 Mbps
PMS migration Reservit → Mews
8 weeks
PCI DSS compliance
Level 4 validated
Guest Wi-Fi satisfaction (TripAdvisor)
+1.4 stars
Duration
8 weeks (audit + sourcing + migration + deployment)
Budget
≈ €55,000 ex. VAT (hardware + setup + Mews migration + training)
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The cases presented are representative profiles typical of our target market. Real customer cases (with their consent and logo) will be added as the company accumulates delivered projects with authorization to publish.