Find the people and technology your project needs.

MAKO Diving & Marine Services

Hanwell, New Brunswick

New Brunswick commercial-diving and marine-services company providing ROV- and sonar-assisted underwater inspection and search, scientific diving, marine construction, repair, salvage and public-safety recovery support across eastern Canada.

Mangrove Lithium

Delta, British Columbia

Delta critical-minerals company operating an electrochemical lithium-refining platform designed to convert varied lithium feedstocks into battery-grade lithium hydroxide or carbonate.

Manitoba Aerospace

Winnipeg, Manitoba

Manitoba aerospace and defence industry organization supporting sector development, workforce initiatives, supply-chain connection and promotion.

MANNARINO Systems & Software

Saint-Laurent, Quebec

Bring safety-critical aircraft software and electronics to certification with Canadian engineering support. MANNARINO covers airborne software, hardware, systems engineering, simulation, and compliance from Quebec.

Marconi Technologies

Montréal, Quebec

Marconi Technologies is a Canadian-majority-owned, veteran-run defence technology company headquartered in Montréal that develops and manufactures tactical communications and networked mission systems for Canadian and allied users.

Marecomms

Halifax, Nova Scotia

Marecomms is a Halifax company founded in 2017 that develops ROAM underwater acoustic communications within its AQUABAND offering. It markets mobile random-access and multiuser links that handle Doppler and multipath, with licensing, OEM integration and complete-system engagement. These are supplier-described functions; the public offering does not disclose a complete routing or sensor-gateway interface contract. The described ROAM architecture pairs a transmitter with a hydrophone array and receive-processing platform. Its older brochure combines acoustic link rate with image-compression gain when advertising 30–600 kbit/s over 100 m–2 km; this is not raw payload throughput at every range. A dated February 2022 company account describes a 2 km compressed-image transfer in Halifax Harbour. Later NRC projects address receiver power, frequency control, a lightweight operating environment and ruggedized AUV payload integration. The modem offering and those integration work packages should be assessed at their respective stages.

Marimetrics Technologies is a Dartmouth ocean-sensing company developing real-time trace-gas and chemical measurement systems for marine propulsion, aquaculture, environmental science and industrial monitoring.

Marine Magnetics

Markham, Ontario

Marine Magnetics is an Ontario designer and manufacturer of marine magnetometers and gradiometers for high-accuracy detection and mapping of ferrous targets and geophysical features in maritime environments.

Marine Thinking

Halifax, Nova Scotia

Marine Thinking is a Halifax marine-autonomy company developing portable and larger uncrewed surface vessels, vessel-autonomy kits, edge computing and communications for hydrographic, environmental and defence-relevant missions.

MarineLabs

Victoria, British Columbia

Canadian ocean-data company operating marine weather and intelligence services for coastal and offshore decision-making.

MarineNav

Panmure Island, Prince Edward Island

MarineNav is an independently owned Prince Edward Island manufacturer of portable Oceanus remotely operated vehicles, marine-grade computers, displays, vessel monitoring systems and fleet-management software.

Marinvent

Saint-Bruno-de-Montarville, Quebec

Marinvent is a Quebec aerospace technology company with software and engineering offerings spanning certification workflow, flight-related systems and sensor-data interpretation. Its Synthesis tool manages requirements, compliance evidence and program artefacts. It also markets sensor-fusion software and the Airfoil Performance Monitor for airflow and stall-margin information. The company dates to 1983. AIAC records an important organizational distinction: Marinvent created 3C in 2016, and certification services formerly supplied by Marinvent are now undertaken by 3C, with Marinvent contributing equipment, engineering and tools.

Maritime Launch Services

Halifax, Nova Scotia

Nova Scotia launch-services company developing Canadian commercial spaceport and launch capability.

Mathers Logistics

Dartmouth, Nova Scotia

Mathers Logistics is the project-logistics and freight-forwarding arm of I. H. Mathers, providing cargo handling, secure warehousing, marine agency and customs support from Dartmouth, Nova Scotia.

Applied automotive and mobility research and test facility connecting university researchers and industry through vehicle systems, electrification, materials, manufacturing and validation infrastructure.

McRock Capital

Toronto, Ontario

McRock Capital is a Canadian venture capital fund manager specializing in industrial software and industrial AI for the physical economy, including robotics, critical infrastructure, manufacturing, and connected operational systems.

MDA Space

Brampton, Ontario

Observe wide areas through cloud, darkness, and difficult weather. MDA Space brings Canadian radar Earth observation together with space robotics, satellite operations, and mission systems.

MDS Aero Support

Ottawa, Ontario

Prove an engine or component before it enters service. MDS Aero Support delivers Canadian-designed test facilities, controls, instrumentation, data systems, environmental simulation, and lifecycle support for gas turbines.

MDS Coating Technologies

Slemon Park, Prince Edward Island

MDS Coating Technologies develops and applies protective coatings and surface treatments for gas-turbine compressor airfoils. Its physical vapour deposition coatings address particle and fluid erosion and corrosion, while its MEERER surface-finish process is intended to help coated airfoils retain a smooth finish in service. The named portfolio includes BlackGold, ER-7 and MEERER for commercial aviation, military and industrial gas turbines. The engineering purpose is to preserve the airfoil surface through exposure and operation. MDS associates erosion protection and finish retention with reduced damage, fouling and deterioration in compressor performance. Those benefits depend on the substrate, coating version, component geometry and operating environment; the public product descriptions do not specify a universal coating chemistry, thickness or performance multiplier. MDS's development infrastructure includes a Rapid Prototyping Centre for coating systems and test methods. The company lists erosion and corrosion testing, scanning electron microscopy and energy-dispersive X-ray analysis, fatigue and vibration work, leading-edge erosion testing, temperature testing and 3D scanning and modelling across its facilities. These capabilities connect material development with component evaluation and the approval work needed for an engine application. Its public application history includes company-reported CH-46/T58 and USMC CH-53/T64 work, alongside NCMS collaborative projects. These records provide specific engine and coating references rather than a single qualification covering the entire product family. A new federal contribution supports further coating development and expansion of manufacturing and research capacity in Prince Edward Island and Quebec.

Canadian builder of high-speed aluminum patrol, search-and-rescue, fire and work boats.

Metaspectral

Vancouver, British Columbia

Metaspectral is the trading name of Vancouver-based MLVX Technologies Inc., which develops software for interpreting hyperspectral imagery: images in many wavelength bands that help distinguish materials with similar visible appearance. Its Clarity platform combines spectral analysis, deep learning and reviewable evidence for Earth observation, defence, industrial sorting and emissions monitoring. Co-founder and CEO Francis Doumet leads a team spanning spectral science, deep learning, FPGA architecture and software.

MetOcean Telematics

Dartmouth, Nova Scotia

Dartmouth designer and manufacturer of satellite-connected oceanographic, tracking, search-and-rescue and defence or security telemetry systems, including drifting buoys, acoustic profiling floats, beacons and Iridium communications hardware and services.

MHI Canada Aerospace

Mississauga, Ontario

MHI Canada Aerospace is a Mississauga tier-one manufacturer assembling aerospace wing and fuselage structures, installing systems and conducting functional testing.