Customer story:

Building the infrastructure behind the digital future: How Mercury Engineering strengthens its data center tendering with XaitPorter

Whether the task is AI model training, software-as-a-service deliveries or digital transactions processed in milliseconds, the future relies on data centers: vast, highly engineered physical facilities that form the backbone of the modern economy.

For Mercury Engineering, building these mission-critical environments is not simply construction. It is delivering the infrastructure that enables digitalization, cloud computing, financial systems, healthcare platforms, and increasingly, the green energy transition.

But before a single cable is installed or a cooling system commissioned, every project begins the same way: with a bid.

Business outcomes:

  • Increased Operational Scalability
  • Enhanced Risk Management and Deadline Flexibility
  • Improved Resource Allocation
  • Strengthened Brand Reputation
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Region
Europe

Company size
3 000+

Industry
Construction

Solution
XaitPorter

Engineering trust before the first foundation is poured

Founded in Ireland and operating across Europe, Mercury Engineering is the European leader in construction solutions. The company specializes in data centers and other mission-critical facilities where uptime, safety, and precision are non-negotiable.

These are not conventional building projects. Hyperscale data centers require:

  • Massive electrical capacity
  • Advanced cooling and heat recovery systems
  • Highly coordinated logistics
  • Strict safety and quality standards
  • Aggressive delivery timelines

About Mercury Engineering

Mercury is a European leader in construction solutions, specializing in the management of complex engineering and construction projects for many of the world’s most prominent corporations. By delivering advanced infrastructure and life-changing technologies, the company plays a vital role in connecting people, communities, and businesses globally. This work provides the essential foundation for clients to achieve significant technological and social advancements.

“...XaitPorter facilitates growth in a rapidly expanding market. It allows us to protect quality in high-stakes submissions, thus enabling scalability without administrative expansion. And let me add, it reinforces the professional discipline that clients expect”

– Oskar Larsson, Pre-construction Manager at Mercury Engineering

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At the same time, sustainability expectations are rising rapidly. Clients demand energy-efficient designs, reduced carbon footprints, optimized resource usage, and alignment with broader climate goals.

“These facilities are essential for the digital future,” says Oskar Larsson, Pre-construction Manager at Mercury Engineering. “But they also have to be built responsibly. Speed and sustainability must go hand in hand.”

Winning such projects requires more than a competitive price. Clients must trust the contractor’s execution capability, risk management, logistics planning, and team structure.

That trust is built long before construction starts. It begins in the proposal.

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“It’s a people’s business, the client needs confidence, not just in the numbers, but in how we plan to execute.”

– Oskar Larsson, Pre-construction Manager at Mercury Engineering

Inside a high-stakes tender environment

As Pre-construction Manager, Larsson leads the entire tender process. “When a client sends a request, we take ownership of the full submission,” he explains. “We assemble the team, define the execution strategy, develop the schedule, coordinate with estimation on pricing, and structure the entire document.”

A typical Mercury bid includes:

  • 20–30 structured sections
  • 10–15 active contributors
  • Additional reviewers across departments
  • Cross-functional collaboration between engineering, operations, commercial, and estimation teams
  • Tight deadlines and strict compliance requirements

Many of Mercury’s projects involve repeat clients. Relationships are often well-established. Still, every tender must demonstrate capability with clarity and discipline.

“It’s a people’s business,” Larsson says. “The client needs confidence, not just in the numbers, but in how we plan to execute.”

The proposal is the first proof of that capability.

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“It’s a people’s business, the client needs confidence, not just in the numbers, but in how we plan to execute.”

– Oskar Larsson, Pre-construction Manager at Mercury Engineering

When growth exposes structural limits

Before adopting XaitPorter, Mercury relied on Microsoft Word and SharePoint to manage tender documentation. For years, this approach was sufficient. But as project scale and bid volume increased, structural weaknesses became clear.

“We were writing in Word, collaborating in SharePoint, and tracking responsibilities in Excel,” Larsson recalls. “Technically it worked. But it required constant manual control.”

The most significant pressure emerged toward the end of the process.

After weeks of drafting and internal review, documents were often handed over for graphic assembly. Any formatting inconsistencies-different styles, changed numbering-had to be corrected manually.

“If we discovered an issue close to the deadline, we had very little flexibility,” Larsson explains. “Changes could take hours. Everything became time-critical.”

At the same time, tracking progress across contributors was fragmented. Understanding of section ownership and the status of completed versus in-review work could be unclear at times.

Excel lists attempted to provide oversight, but visibility remained limited. As Mercury expanded its tender capacity, the need for a more structured system became unavoidable.

A structural shift: from document editing to process control

The turning point came with a simple realization: Content and layout should not compete for attention.

“I had used LaTeX during my studies,” Larsson says. LaTex is a document preparation system used for the communication and publication of scientific documents. “You focus on the content, and the layout is generated automatically. When we saw XaitPorter, that principle immediately made sense.”

Instead of formatting documents manually, Mercury could:

  • Define structure through templates
  • Assign ownership at section level
  • Monitor progress in real time
  • Separate content creation from formatting
  • Publish instantly

Implementation moved quickly. A small core team of three to four people drove the process internally.

“We saw the potential immediately,” Larsson says. “We built our templates, went through
training, and pushed it forward.”

Change management required attention. While the core bid team adapted quickly, occasional contributors, particularly those not involved in tenders daily, needed time to adjust to a new interface and workflow.

“In any organization, people are used to their tools,” Larsson explains. “You have to show them how it improves their work.”

Over time, transparency and clarity replaced resistance.

“We saw the potential immediately,” Larsson says. “We built our templates, went through training, and pushed it forward.”

– Oskar Larsson, Pre-construction Manager at Mercury Engineering

Deadline flexibility: the decisive difference

The most tangible impact appears in the final moments before submission. “In the past, if we needed to adjust something on submission day, it could create major stress,” Larsson says.

Today, changes are different.

“I can update and republish a fully formatted document in just a few seconds.”

This flexibility fundamentally changes risk management in large tenders. Instead of freezing documents hours in advance to protect formatting integrity, Mercury can refine content until the very end.

“You feel in greater control of the process,” Larsson says. “That reduces pressure significantly.”

Scaling without increasing headcount

As demand for data center infrastructure has grown across Europe, Mercury’s bid activity has increased accordingly. Without structural improvements, that growth would likely have required additional administrative resources.

“I don’t think we could handle our current volume as fluidly without this system,” Larsson says.

Mercury has increased its capacity while maintaining the same core team. The shift is not just about speed. It is about control. Workflow visibility ensures:

  • Clear section ownership
  • Transparent progress tracking
  • Reduced duplication of effort
  • Stronger accountability

Instead of managing formatting, bid managers can better focus on managing narrative. Ownership of the full document rests with the bid lead, not dispersed across multiple contributors.

“That’s a big difference,” Larsson explains. “Our team manages the story from start to submission.”

Mercury Engineering has reduced the involvement of graphic designers in the tender
process by 90 percent. At the same time, the company has increased flexibility for changes
in tenders. Smaller changes in the finished documents now take seconds rather than hours.

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“I don’t think we could handle our current volume as fluidly without this system,”

– Oskar Larsson, Pre-construction Manager at Mercury Engineering

Quality as a signal of discipline

In mission-critical construction, perception matters. Clients evaluating multiple large-scale proposals look for clarity, consistency, and professionalism.

“A well-structured proposal reflects how you operate,” Larsson says. “It signals discipline.”

With XaitPorter:

  • Numbering is always correct
  • Templates ensure consistency
  • Content libraries enable reuse
  • Layout remains professional regardless of contributor count

Engineers no longer struggle with formatting conflicts from pasted Word sections or incompatible styles. Instead, they focus on what differentiates Mercury:

  • Execution strategy
  • Logistics planning
  • Safety systems
  • Sustainability innovation
  • Delivery capability

“You can concentrate on what creates value for the client,” Larsson says. “Not on fixing formatting.”

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“I can update and republish a fully formatted document in just a few seconds.”

– Oskar Larsson, Pre-construction Manager at Mercury Engineering

Supporting Europe’s digital and green transition

Data centers are expanding rapidly across Europe to support cloud computing, artificial intelligence, and digital public services.

At the same time, regulatory frameworks and corporate sustainability commitments are reshaping expectations. Facilities must:

  • Optimize energy usage
  • Integrate renewable power
  • Reduce embodied carbon
  • Enable heat reuse
  • Align with EU sustainability targets

Mercury Engineering plays a critical role in delivering this infrastructure responsibly.

“These projects are essential,” Larsson says. “But they must be executed with precision and environmental awareness.”

By removing administrative friction in the proposal phase, Mercury’s teams can focus more on engineering innovation and sustainable execution strategies, areas where they create true competitive differentiation.

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“It is embedded in the company’s standard tendering process. XaitPorter facilitates growth in a rapidly expanding market. It allows us to protect quality in high-stakes submissions, thus enabling scalability without administrative expansion. And let me add, it reinforces the professional discipline that clients expect”

– Oskar Larsson, Pre-construction Manager at Mercury Engineering

Reducing stress through structure

According to Larsson, stress in tendering often stems from two causes:

  1. Uncertainty about how to solve the task
  2. Insufficient resources to execute it

“XaitPorter addresses both,” he says. “You have structure, transparency, and flexibility.”

Visibility across sections reduces uncertainty. Automated publishing reduces risk. Clear ownership reduces duplication. Rather than reacting to formatting problems, the team operates proactively. That control has become part of Mercury’s commercial backbone.

More than a document tool

For Mercury Engineering, XaitPorter is no longer just a software platform.

“It is embedded in the company’s standard tendering process. XaitPorter facilitates growth in
a rapidly expanding market. It allows us to protect quality in high-stakes submissions, thus
enabling scalability without administrative expansion. And let me add, it reinforces the
professional discipline that clients expect,” Larsson says.

In a sector where precision defines success and sustainability defines the future, structure is not optional. It is strategic. And for Mercury Engineering, that structure begins long before construction, with every proposal they submit.