Hello — we are Tectoni · Applied Earth Sciences
We read the ground, prove the materials, and de-risk the build. From dam foundations on the Nile to transmission lines across the Great Lakes, our crews turn Africa's toughest sites into certainty you can build on.
About Tectoni
“We make it happen.”
Our company slogan — and our operating standard
Delivering end-to-end solutions for our clients' most complex, mission-critical infrastructure projects — projects that advance everyday life at scale — while setting new heights for safety excellence, schedule predictability, and operational precision, leveraging the full strength of Tectoni's Applied Earth Sciences competencies.
To be the leader in all areas of Applied Earth Sciences — and beyond — in Africa.
We are guided by our commitment to integrity, collaboration, accountability, learning, and excellence in our dealings with each other and with those we support and serve.
The ground is not always as stable as it looks — knowing exactly what lies beneath is where every safe build begins.
Everything we do is organised into six mission areas. Five carry our core Applied Earth Sciences competencies; the sixth turns that science into finished infrastructure — wherever a project needs the ground understood, the water managed, or the risk quantified.
Applied Earth Sciences · across the Great Lakes
Wherever the ground must be understood, the water managed, or the risk quantified — Tectonians are there, on land, in swamps and over open water.
How Tectoni is led
A lean, disciplined Executive Leadership Team, built on one operating doctrine: authority follows competence, departments cover each other rather than compete, and safety and ethics answer to no one they might have to overrule.
Field delivery, readiness, equipment and logistics. Owns the movement — mobilising crews and bringing missions home safely and on schedule.
The single technical authority across all six mission areas: engineering method, interpretation, data integrity and technical innovation.
Quality, health, safety, environment and compliance as one function — ISO 9001, ISO 45001 and the Code, with stop-work authority.
↑ Independent line to the BoardWinning and keeping clients: the pipeline, tenders, pricing discipline and the beachhead strategy. Business development as a core mission.
The money, the systems and the back office: financial control, procurement, IT, contracts and the unit economics that keep bids honest.
The Tectonians — recruitment, verified competence, training, wellbeing and the culture that carries our standard.
Independent escalation. Solid lines are reporting lines. The QHSE & Compliance Manager reports to the General Manager for day-to-day matters, but holds a direct, unfiltered line to the Board's Audit, Risk & Ethics committees for any safety or conduct concern — so that safety and ethics can never be silenced by the operation they oversee. That dotted line is deliberate, and it is never to be closed.
Six seats, one fight, no silos. Each seat's first question is not “how do I optimise my step?” but “how do I set up the next person in the chain to succeed?” Departments do not compete; they cover each other toward the mission.
The team turns on a fixed cadence, chaired by the General Manager. Nobody arrives with excuses; everyone arrives with progress, data and honest answers — which is what makes urgency and accountability real rather than decorative.
Everything in the ELT flows to the General Manager, with one designed exception: QHSE & Compliance can go straight to the Board on any safety or conduct matter. That single line keeps the whole structure honest under pressure.
Service portfolio
Africa's natural world is changing at the very moment that human demand on its land, water, energy, and infrastructure is accelerating. As an Applied Earth Sciences company, Tectoni exists at that intersection — preparing the decision-making bases that shape how the Continent builds, and deepening the understanding of the ground beneath it.
Everything we do is organised into six mission areas — our business fields. Five carry our core Applied Earth Sciences competencies; the sixth, Specialised Civil & Marine Works, houses the hands-on construction, maintenance, and installation capabilities that turn our science into finished infrastructure. Behind every mission area stand our people — the Tectonians — working across Uganda, Tanzania, Rwanda, Burundi, Kenya, the Democratic Republic of the Congo, and Ethiopia.
Tectoni's primary mapping and geospatial division — the foundation on which every other mission area builds. We deliver topographic and geologic mapping to continental standards, coordinate geospatial data across borders and disciplines, and operate remote-sensing platforms from satellite imagery down to our own drone fleet. The products and data we generate make it possible to understand, monitor, and detect the changes affecting Africa's natural and agricultural resources, its economy, and public safety and security.
Drone flights + Photogrammetry: Aerial surveys, terrestrial and underwater surveys (including our in-house divemasters), and photogrammetric terrain and object models.
Field surveys: Digital terrain models, GNSS/GPS surveys, 360° imagery, volume and area calculations, and displacement analyses of landslides and rock outcrops.
GIS + Geoinformatics: Geodata analysis, spatial databases, WebGIS, mobile GIS applications, and custom software development.
3D modelling + BIM: Geological 3D layer models, subsurface modelling, IFC data handling, Geo-BIM coordination, and publication in 3D web-viewers.
Geomonitoring: Data portals and monitoring dashboards that keep clients connected to their sites in near real time.
Science that directly protects the health, safety, and prosperity of the African people. We provide trusted, timely, and impartial environmental information to help resolve the Continent's hardest land-management and conservation questions — on public lands, at industrial and contaminated sites, and in the communities that depend on both.
Environmental impact assessment: Full environmental impact assessments (EIA) for roads, mines, landfills, industrial facilities, power lines, and other major infrastructure.
Contaminated sites: Historical, technical, and detailed investigation of polluted sites; professional assessment, handling, disposal, and remediation of contaminated soil and excavated material; proof of remediation and disposal.
Soil protection: Soil mapping, soil protection concepts, recultivation planning, and pedological construction supervision.
Monitoring + supervision: Environmental, groundwater, and pollutant monitoring throughout the construction cycle, with dedicated environmental construction supervision.
Spatial planning: Spatial planning support — from preliminary assessments to land-use plans — that translates environmental science into responsible development.
We lead geologic mapping and provide impartial scientific information on the Continent's geologic resources and their supply chains — from the critical minerals that power modern economies to the construction ground beneath every dam, port, and pipeline. Our work spans site development and geotechnical engineering, resource exploration and assessment, and the full life cycle of landfill and geothermal projects.
Engineering geology: Geological and geomorphological mapping, rock-mass classification, tunnel geology, rockface stabilisation, and geological 3D models.
Geotechnics + site development: Foundation and excavation-pit design, stability calculations, dam-construction conception, construction-ground modelling, and geotechnical construction supervision — the backbone of safe, cost-efficient site development.
Ground investigation + geophysics: Core drilling, SPT/CPT/DPL probing, test pitting, seismic refraction tomography (SRT), electrical resistivity tomography (ERT), and full laboratory testing of soils and rock.
Raw materials: Prospection, site evaluation, feasibility studies, extraction planning and supervision, and forward-looking recultivation for gravel, sand, limestone, clay, and other mineral raw materials.
Landfills: Landfill projects from site evaluation and permitting through operation, surveillance, leachate monitoring, and recultivation.
Geothermal energy: Feasibility testing, borehole heat-exchanger design and simulation, Thermal Response Tests (TRT/ETRT), and hydrogeological supervision of geothermal wells and well fields.
Every year, natural hazards across Africa threaten lives and livelihoods and cause damage running into billions of dollars. Floods, debris flows, landslides, rockfall, collapses, and earthquakes do not wait for preparedness to catch up. Working with a wide network of partners, Tectonians monitor, assess, and conduct targeted research on the full range of natural hazards — so that policymakers, infrastructure operators, and the public have the understanding they need to strengthen preparedness, response, and resilience.
Hazard + risk assessment: Risk analysis and quantification for floods, debris flows, landslides, rockfall, avalanches, and earthquakes, including hazard maps for local planning and seismic microzonation.
Process modelling: 2D and 3D modelling of floods, bed-load transport, debris flows, rockfall, and avalanches.
Protective measures: Design and construction management of rockface stabilisation, safety detonations, landslide and subsidence stabilisation, and protective structures.
Early warning + response: Alarm, early-warning, and monitoring concepts; incident response, documentation, and analysis; emergency planning.
Water information is fundamental to economic well-being, to the protection of life and property, and to the effective management of the Continent's water resources — a large share of Africa's drinking water comes from groundwater alone. Tectonians work with partners to monitor, assess, and deliver information on streamflow, groundwater, water quality, and water availability, and to confront the water dimension of climate change with customised, science-based solutions.
Hydrogeology + groundwater: Groundwater analysis, monitoring, modelling, and protection-zone designation; well drilling and pump tests; infiltration testing and tracer tests; managed aquifer recharge support.
Construction dewatering: Excavation-pit drainage, retention of meteoric water, and dimensioning of infiltration systems.
Climate: Local and regional climate assessments and studies — temperature, precipitation, irradiation, and wind — including drought expertise and studies on climate impacts on groundwater.
Water quality + measurement: Groundwater-level, conductivity, pH, redox, oxygen, temperature, and turbidity surveillance with modern datalogging.
Science tells you what to build; someone still has to build it. This is the division where Tectonians put on harnesses, wetsuits, and welding masks. It bundles the technical construction, installation, and maintenance services that complete our end-to-end offer — in-water marine works, dam and powerhouse maintenance, industrial surface protection, and power transmission line construction — all executed under site-specific Risk Assessment and Method Statements (RAMS) and a strict zero-harm safety culture.
Marine + in-water works: Assembly, anchoring, tensioning, and commissioning of floating debris barrier systems; professional diving operations for underwater inspection and repair.
Dam + powerhouse maintenance: High-pressure jetting of relief drains, chemical and cement grouting, remedial concrete works, and long-term monitoring of dam civil structures.
Industrial coatings: Surface preparation and multi-stage epoxy coating of powerhouse floors, control buildings, and steel structures, with DFT and environmental quality control.
Transmission lines: Foundation works, tower erection, and conductor/OPGW stringing for HV/MV lines, delivered to client-approved QA/QC and EHS programmes.
Structural preservation + NDT: Non-destructive testing (impulse radar, ultrasonic pulse-echo, impact-echo, potential field measurement, rebound hammer), structural condition appraisal, crack and vibration monitoring, and preservation of evidence.
Our mission is to deliver end-to-end solutions for our clients' most complex, mission-critical infrastructure projects — advancing everyday life at scale while setting new heights for safety excellence, schedule predictability, and operational precision.
To be the leader in all areas of Applied Earth Sciences — and beyond — in Africa, guided by integrity, collaboration, accountability, learning, and excellence.
In the field
From terraced highlands to open water at first light — Tectonians on site across the Great Lakes region, turning Africa's toughest ground into certainty you can build on.
Scenes from active Tectoni sites across Uganda & the Great Lakes region.
Selected references
Nine stories from the field — dams protected, ports founded, lines energised, pipelines grounded in fact. Proof, not promises.
Technical assembly, anchoring engineering, and commissioning of a Tuff Boom system protecting the powerhouse intake and siphon spillway on the River Nile — delivered under site-specific RAMS with zero harm.
Client — Bujagali Energy Limited (BEL)High-pressure jetting of dam relief drains with pre- and post-cleaning flow verification, restoring seepage management to design efficiency without compromising internal structures.
Client — Bujagali Energy Limited (BEL)21 m rotary-drilled borehole with stage-grouted, testable piezometer system for long-term groundwater pressure monitoring under UEGCL's operational efficiency programme.
Client — CWE · Under UEGCL5 km² geological mapping, core drilling with SPT, Lugeon and percolation testing, televiewer scanning, and SRT to 40 m depth — full data report to Eurocode 7 for the feasibility design.
Client — Ministry of Water & Environment · Fichtner222 m of core drilling, 216 SPTs, 189 undisturbed samples, ERT at 15 facility points, and full laboratory suite for the transmission main, pipe bridge, and 14,000 m³/d WTP at Bukakata.
Client — NWSC · SOGEA-SATOM UgandaMulti-disciplinary campaign across dam axis, borrow areas, and spillway: core drilling, seismic refraction, Lugeon and falling-head testing, and a full factual geotechnical report.
Client — MWE · Inyatsi ConstructionGeotechnical investigations in swamp terrain for reclamation works — boreholes, in-situ testing, and rock/soil mechanics laboratory programme for the port development.
Client — MoWT · GAUFF · Coil & Coppieters JVFoundation works, erection of 21 towers (≈179 MT), and stringing of 132 kV and 220 kV single-circuit lines — full crews, equipment, and EHS compliance across Burundi.
Client — REGIDESO · KEC International2D/3D electrical resistivity tomography and 900 m of seismic refraction with MASW, delivering shear, Young's, and compressibility moduli for the detailed road design.
Client — SERING Ingegneria, ItalyTrusted by
Bujagali Energy
CWE
UEGCL
Fichtner
SOGEA-SATOM
NWSC
KEC International
REGIDESO
UNDP
Ministry of Water & Environment
GAUFF Engineering
Inyatsi Construction
SERING Ingegneria
Sinohydro
Eskom Uganda
JICA
Ethics & governance
Our instruments measure the earth. This Code measures us. Our work spans the continent — different places, different pressures, different temptations. Our answer to all of them is the same: we hold one standard, the highest one, everywhere we work.
Everyone goes home safe, every day. Safety is not a department or a slogan; it is the first design criterion of every plan we make. Anyone, regardless of rank, has the authority and the duty to stop unsafe work.
We are honest and forthright in all our dealings. We keep our promises, and we bring back the truth from the field even when it is inconvenient. Bad news does not improve with age.
We embrace diversity of background, experience and perspective, and treat every colleague, client and community member with dignity and respect. A workforce that reflects the Continent we serve is a stronger one.
We are stewards of the very earth we study. We minimise harm, manage resources responsibly, and leave every site — and every relationship — in a state we would be proud to sign our name to.
We perform the best we can today and embrace change so we perform better tomorrow. We measure ourselves by standards met and promises kept — not by effort spent.
When you face a decision the Code does not explicitly cover, test it from several directions — and see whether the readings agree.
Version 2.0 · Controlled document · © Tectoni Africa Ltd
Available to all Tectonians, and to our clients, suppliers and partners. Where local laws or customs are less stringent than our values, our Code or our policies, we always apply the higher standard.
Speak openly — raise a concern in good faith and you are protected from retaliation, without exception. Contact info@tectoni.com.
Applied Earth Sciences 101
Whether you are a project owner, a student, or simply curious — here is a plain-language guide to what Applied Earth Sciences is, why it exists, the terms and standards involved, and how a newcomer can get started.
Every dam, port, road, pipeline and power station is only as safe as the ground beneath it — and that ground is hidden, variable and rarely what it looks like from the surface. Applied Earth Sciences exists to make the invisible ground known before anyone commits money or lives to it.
Africa's demand for infrastructure is accelerating at the same moment its climate, water and hazards are shifting. Foundations fail on assumptions, not on data. Reading the ground first is what prevents collapses, cost overruns and disasters — and what lets projects stand up to floods, slopes and time.
We are the specialists who go and find out. On land, in swamps and over open water, we measure the subsurface, prove the materials, quantify the risk, and hand designers the verified numbers their work depends on — reported to international standards.
Applied Earth Sciences is the practical use of geology, soil and rock mechanics, geophysics, hydrogeology and environmental science to solve real-world engineering and land-management problems. Where pure earth science seeks to understand the planet, applied earth science puts that understanding to work — telling engineers what the ground will actually do so they can design foundations, manage water, and protect people and the environment.
Because you cannot design a foundation for ground you have not measured. A ground investigation reveals what lies beneath the surface — soil and rock layers, their strength, the depth to bedrock, and where water sits and moves. Skipping it is the single most common cause of foundation failure, budget blow-outs and construction delays. A few weeks of investigation routinely saves months of remediation and, on hazardous sites, saves lives.
Geology describes what the ground is made of and how it formed. Geotechnical engineering takes that further and quantifies how soil and rock behave under load — strength, settlement, stability — so structures can be designed safely. Geophysics images the subsurface indirectly from the surface, using electrical, seismic or radar methods to map layers and features between and beyond boreholes. Most real projects use all three together.
Typically four things. Drilling and sampling — boreholes recover soil and rock cores for logging and testing. In-situ testing — tests like the SPT or CPT measure ground strength directly in the hole. Geophysics — surface surveys (ERT, seismic) fill in the picture between boreholes. Laboratory testing — samples are tested for classification, strength, compaction and chemistry. The results are combined into a factual report and a ground model the designers build on.
Geotechnical design across the region is anchored to Eurocode 7 (BS EN 1997). Site investigation practice follows BS 5930; soil laboratory testing follows BS 1377 and various ASTM methods; sampling and groundwater measurement follow the ISO 22475/22476 series. Quality and safety management are certified to ISO 9001:2015 and ISO 45001:2018. Environmental work follows national regulations such as the EIA regulations administered by NEMA in Uganda. See the standards list below.
De-risking means removing unknowns before they become expensive or dangerous. By measuring the ground, proving the materials and quantifying natural hazards early, we convert guesses into numbers. Designers can then size foundations correctly, contractors can price with confidence, and lenders and regulators can approve faster — because the biggest source of surprise on a construction project, the ground, has been taken off the table.
The same principles apply, but from floating platforms. Drill rigs are mounted on barges or pontoons, anchored and levelled over the survey point, and crews work in life vests under marine method statements. In-house divers handle underwater inspection and sampling. This is some of the most demanding work in the field — and it is where projects like ports, bridges and lake-crossing pipelines are won or lost.
Yes. Applied Earth Sciences sits at the crossroads of geology, civil engineering, environmental science and data — so there is a path in for a wide range of backgrounds, from field technician to geologist, geophysicist, hydrogeologist or geotechnical engineer. It is hands-on, intellectually rich, and central to every piece of infrastructure a growing continent needs. The starter path below shows a sensible order to learn it.
The primary framework for geotechnical design across the region — foundations, retaining structures and slopes.
Code of practice for ground investigations — how site investigations are planned, executed and reported.
Methods of test for soils: classification, strength (triaxial), compaction (Proctor), CBR and chemistry.
International standards for sampling methods, groundwater measurement and field (in-situ) testing.
Quality management — the certified system behind traceable data and right-first-time deliverables.
Occupational health & safety management — the certified basis of our zero-harm site culture.
Join the team
We are guided by integrity, collaboration, accountability, learning, and excellence — in how we treat each other and those we serve. If that sounds like you, we want to hear from you.
Drillers, rig operators, and field crews running investigations on land, over water, and everywhere in between.
Geologists and geotechnical engineers turning field data into the ground models projects are built on.
Specialists in SRT, ERT, MASW, and downhole methods imaging what no borehole can reach.
Technicians proving soils, aggregates, and concrete against specification — the numbers behind every report.
Officers who keep every site working to zero-harm standards and every deliverable to international ones.
Administration, logistics, and finance professionals who keep crews mobilised across seven countries.
No open vacancy listed? We still welcome speculative applications — send your CV and a short note on where you would fit, and we will keep it on file for upcoming projects.
We make it happen
From dam foundations on the Nile to transmission lines across the Great Lakes, our crews turn Africa's toughest sites into certainty you can build on.
Let's talk