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GEOTECHNICAL INVESTIGATION
SETTLEMENT · INFRASTRUCTURE · GROUND-TRUTH
Precision
below the surface.
Ground investigations, water wells, and engineering design — delivered by Tanzanian engineers and trusted by government ministries, developers, and NGOs across East Africa.
ZPPDA Reg.
Gov. Certified
Int'l Std.
21+ Delivered
Ref · BG-2025-018Active
Cancer Hospital
Binguni, Zanzibar
Binguni, Zanzibar
6.1659° S · 39.2026° E
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21+
Projects Delivered
Across Zanzibar & mainland
24
Specialist Team
4 engineers · 14 drillers
80m
Deepest Borehole
MAIRL water wells, Gamba
2021
Year Founded
ZPPDA registered
01 / Origins
We do the work that turns sites into builds.
Founded in 2021 by Tanzanian engineers, we exist to do one thing: give clients the ground-truth data they need before breaking ground. Boreholes, geotech reports, environmental assessments, water wells, design support. The unglamorous, technical work that turns a plot of land into a viable project.
ZPPDA-registered & licensed by the Revolutionary Government of Zanzibar
XY2 & XY4 drilling rigs, GPS survey kit & hydrogeological instruments
24-person team, 4 licensed engineers, 14 certified drillers
One partner from site walk to handover, no subcontracting
21+
Projects Delivered
FIELD LOG
CHK-Pemba · 6 BH · SPT N=42 · GW @ −4.8m
OUR SERVICES
Seven disciplines,
one team.
From the first site walk to final rehabilitation: every technical discipline a serious project needs, under one roof. No subcontracting, no surprises.
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SVC-01
Geological Survey
Subsurface intelligence for informed engineering decisions — desk study, mapping, SPT, in-situ testing.
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SVC-02
Environmental Survey
ESIA, soil & water assessments, protection plans for projects and communities.
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SVC-03
Engineering Design
Feasibility to commissioning — foundations, hotels, hospitals, public infrastructure.
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SVC-04
Water Wells Drilling
Hydrogeological profiling, drilling, casing, pump installation. 13″ wells up to 80m.
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SVC-05
Site Rehabilitation
Responsible closure of drilling and construction sites — to spec, to handover.
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SVC-06
Logistics & Procurement
Materials on site, on time, every time. End-to-end supply for civil works.
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SVC-07
Laboratory Testing
Field tests that define ground truth — moisture, density, sieve, Atterberg limits.
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SCROLL SEQUENCE · 120 FRAMES
From a hunch
to a dataset.
Watch the work end-to-end. Scroll plays the sequence frame-by-frame: rig deployment, sample extraction, ground-truth report. The same rhythm every project follows.
Site walk & desk study
Engineer reads the geology, then the site. Constraints logged before the quote.
Borehole drilling
XY2 rig deployed. Standard Penetration Tests every 1.5m. Continuous logging.
Factual + interpretive
Lab results, cross-sections, foundation recommendations — signed off for structural use.
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SELECTED WORK · 06 OF 21
Recent projects.
A scrollable rail through what we've delivered for ministries, developers, and NGOs across East Africa. Each card opens the full case study.
Browse all 21+ projects
2024 · MAIRLFULL CASE
Two 13″ water wells (80m)
Ministry of Agriculture
5.7322° S · 39.3056° E
2025 · MoHFULL CASE
Cancer Hospital at Binguni
Ministry of Health
6.1659° S · 39.2026° E
2025 · ORKUNFULL CASE
Stadium at Fumba
ORKUN / Govt. of Zanzibar
6.2998° S · 39.1839° E
2025 · PRES. OFFICEFULL CASE
CCTV Control Center, Unguja & Pemba
President's Office
6.1349° S · 39.2667° E
2025 · TRIDENTFULL CASE
Villa at Nungwi
Trident Estates
5.7286° S · 39.2972° E
2025 · BLUE PALMFULL CASE
Hotel Blocks, Kikungwi
Blue Palm Hotel
6.1492° S · 39.4156° E
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METHOD · 04 STEPS
How we work.
From first site walk to final report: a four-step rhythm we run on every project, no exceptions. Scroll to step through.
01
Scope & Site Walk
Desk study, site reconnaissance, constraints map. Before we quote.
02
Investigation & Design
Boreholes, SPT, sampling, lab testing. Factual + interpretive report.
03
Execution
Rigs and crews mobilised. Works delivered under strict HSE & QA control.
04
Reporting & Handover
Signed-off reports, data handover, site rehabilitated to spec.
Investigation
& Design.
& Design.
SPT every 1.5m. Continuous core logging. UDS at engineering horizons. Lab samples bagged on site, delivered same day.
42SPT N
−4.8mGW
11SAMPLES
WHY BINSALIM
Why clients keep
calling us back.
Six facts that tell the story — drawn from 21+ engagements with ministries, developers, and NGOs across East Africa.
01.
Certified & Registered
ZPPDA-registered. Licensed by the Revolutionary Government of Zanzibar. Every job runs to national standards.
02.
The Right Equipment
XY2 and XY4 drilling rigs. GPS survey kit. Hydrogeological instruments. The right tool, on site, every time.
03.
Engineers on Every Job
24 professionals. 4 licensed engineers, 3 drilling supervisors, 14 certified drillers. No subcontracting.
04.
Proven Track Record
Trusted by the Ministry of Health, Ministry of Agriculture, the President's Office, and international developers.
05.
Full Lifecycle Service
Site investigation. EIA. Design. Drilling. Materials. Rehab. One partner, start to finish.
06.
On Time, Every Time
Speed without shortcuts. Delivered to contract, without compromising QA, HSE, or engineering judgement.
CLIENT VOICE
What clients say.
From government ministries to private developers — the work speaks for itself. Three out of 18 reference letters on file.
"
Binsalim delivered the geotechnical investigation for our hospital project on a compressed programme without cutting corners on the reporting. The factual report was exactly what our structural engineers needed.
KM
Eng. K. Makame
Project Director · Ministry of Health
"
Two 80-metre water wells, both productive, both on budget. Binsalim handled everything from hydrogeological profiling to casing and pump installation. We didn't need to manage a single subcontractor.
HJ
Eng. H. Juma
Infrastructure Lead · Ministry of Agriculture
"
As a private developer we needed a geotechnical partner who understands risk, programme, and cost certainty. Binsalim speak that language. Clean reports, responsive team, no surprises.
RT
R. Trindade
Development Manager · Trident Estates
SELECTED CLIENTS · MINISTRIES · DEVELOPERS · NGOs
ZHC
ZRA
ZURA
Ministry of Health
Ministry of Agriculture
President's Office
ZEEA
Milele Foundation
DALTRE
Trident Estates
Blue Palm
ORKUN
IBM Co.
ZHC
ZRA
ZURA
Ministry of Health
Ministry of Agriculture
President's Office
ZEEA
Milele Foundation
DALTRE
Trident Estates
Blue Palm
ORKUN
IBM Co.
FROM OUR ENGINEERS
Notes from the field.
Practical writing on geotechnics, drilling, and delivering complex work in East Africa.
Read all articles
Why factual reports beat opinion reports — every single time.
A short defence of letting the data speak. Three Zanzibar projects where the factual report changed the foundation design — and why your structural engineer will thank you.
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Hydrogeological profiling in coral karst.
Pemba's geology is unusual. Here's how we adapt the survey kit for fractured limestone.
Read article
Nungwi villa: when SPT N42 isn't what it seems.
A lesson in why one borehole is never enough on a coastal site with variable coral fill.
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Let's talk about your project.
Tell us about your site. We'll come back within 24 hours with the right next step, not a sales pitch.
ZPPDA Registered
24h Response
Zanzibar & Mainland
Free Consultation