The digital pioneer in national security.

61N Solutions Oy designs and develops critical systems for the defence and security sector, ensuring that national security stays one step ahead.

Our services

We build operational capabilities in environments where information, systems, and operations must work seamlessly together, even when the stakes are high. We don't offer isolated technical solutions. Instead, we help define what is needed as a whole to achieve the required capability. We bring solutions into operational use and ensure they continue to deliver value throughout their lifecycle.

Our work combines operational needs, controlled implementation, and the ability to turn complex systems into operational reality.

1. Capability development >

We act as a partner in capability development, defining what is needed, how it should be executed, and how to ensure the right outcome. We support the direction of development, procurement, planning and phasing so that the overall effort progresses in a controlled manner towards real operational benefit.

2. Implementation management and integration >

We make sure that the needed solution is delivered in a controlled manner, integrated into the broader whole, and put into use as planned. We lead the implementation, coordinate the parties involved, and create the conditions for the overall effort to progress toward a functioning outcome.

3. Continuity of critical systems >

We keep critical systems and environments operational and ensure they continue to deliver value throughout their lifecycle. The goal is not just maintenance, but continuity, reliability, and operational value.

4. System landscape modernization >

We take control of the existing system landscape and make it more effective to use. We modernize it in phases, unlock more value from the current environment, and create a foundation for continuous development.

5. Mission critical systems >

We design and implement solutions when off-the-shelf products are not enough. We build systems, analytics, AI solutions and the infrastructure that enables them, tailored to the task at hand, so they support real-world operations and continue to evolve in a controlled way after deployment.

Capability development

In demanding environments, the greatest risk isn't usually the technical execution, but development starting from the wrong need, proceeding in the wrong order, or committing to a single solution too early.

We bring an operational perspective, procurement expertise, and the ability to structure capability development into a manageable whole. This enables decisions to be made in a way that supports the overall objectives rather than just an individual project.

The result is clearer direction, a better ability to phase and procure the system landscape in a controlled manner, and a faster path to operational value.

Implementation management and integration

In a multi-vendor environment, individual deliverables can succeed even when the overall solution does not. The challenge lies in interfaces, responsibilities, schedules, and deployment.

We bring structure to the delivery, allowing different parties to work together without fragmenting the overall effort. We ensure that progress, dependencies, and deployment remain under control even when multiple stakeholders are involved.

This turns separate deliveries into a functioning solution, rather than just a collection of finished parts.

Continuity of critical systems

The value of a critical system is proven in use. If continuity, reliability and the ability to evolve are not kept under control, the value of the investment can quickly begin to erode.

We ensure that systems and environments remain reliable, controlled and maintainable throughout their lifecycle. Our work goes beyond maintenance to ensure that the system retains its operational value even in changing environments.

This keeps the critical system operational, effective, and reliable when it is needed.

System landscape modernization

Often, the greatest development potential is not in a new system, but in the existing environment, which can no longer be used effectively. A layered system landscape slows down change, complicates integrations and ties up resources in the wrong places.

We provide a clear view of how the current environment works, what should be renewed, and in what order modernization should be carried out. The goal is not to replace everything at once, but to unlock more value from the existing environment through controlled change.

This turns the system landscape into a foundation for continuous development rather than a growing burden.

Mission critical systems

Not everything critical can be bought off the shelf. When the task, operating environment, or integration needs are demanding enough, the solution needs to be built for its purpose.

We design and build systems, analytics, AI solutions, and the infrastructure that enables them, tailored to the task at hand and designed to work as part of a larger whole. What matters is not only the technical implementation, but that the solution supports real-world operations, withstands operational use and remains maintainable and adaptable over time.

Our strength is the ability to combine technology with deep mission and domain expertise. The result is a solution that not only meets requirements but also reliably supports the mission and delivers real operational value.

Heikki Härkönen

CEO
heikki.harkonen@61n.fi 
+358 50 439 4322
Aapo Koski

Principal consultant
aapo.koski@61n.fi 
+358 40 709 2776
Janne Mansikkamäki

Principal consultant
janne.mansikkamaki@61n.fi
 +358 40 761 1585
Maija Wirlander

COO
maija.wirlander@61n.fi‍  ‍
+358 50 386 2988
Matilda Mäkinen

Senior Talent Acquisition Specialist
matilda.makinen@61n.fi 
+358 50 433 0642
Jenna Manninen

HR & Business Operations Coordinator
jenna.manninen@61n.fi 
+358 50 479 6629