LMA replaced their impractical tools with Heeros (formerly Taimer)

Lahdelma & Mahlamäki architects fell in love with Heeros' easy time tracking. Invoicing is now made simple. All the data is in one place.

Company Name: Lahdelma & Mahlamäki architects
Industry: Architecture

Company Size: 46
Turnover: 12/2018 - 3 500 000,00 EUR
Taimer version: ERP
Core Features we love: Invoicing, Reporting & Analytics


Lahdelma & Mahlamäki architects work in various areas of architectural design, such as new building, renovation, land use, and exhibition design. The company's customers include the State of Finland, cities and municipalities, churches and private developers such as YIT Suomi Oy, Kesko Corporation and Lujatalo Oy.

“Our goal is to create unique buildings that blend in with their surroundings. It is important to understand the nature of the building and know who the future users of the building will be”, says Liisa Koivuranta, Secretary of Lahdelma & Mahlamäki Architects.



Arkkitehtitoimisto Lahdelma & Mahlamäki Oy The company participates in several architectural competitions every year.


Invoice management improved the daily life for LMA

Lahdelma & Mahlamäki architects started using Taimer due to the time tracking feature. The software offers the company a whole new way of creating hourly reports. Invoicing and Business Intelligence reporting are important features as well. Expenses and invoices are implemented through Taimer and the software has also been used for billing.

The architectural firm has benefited from Taimer, especially in terms of time tracking. The other essential part is invoicing. The company used to create invoices with impractical and outdated software, which slowed down their workflow.

“Also, expenses were created in a form in Microsoft Word and the amount had to be calculated manually by us. It was quite clear that things had to change,” Koivuranta says.

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After Taimer was introduced, invoicing became much easier. The billable hours could be transferred directly to the invoice and the visual appearance of the invoices was also more appealing than before.



Liisa Koivuranta Liisa Koivuranta


"Creating expenses is easy for employees when the software calculates the amount automatically. Moreover, the company strongly recommends the time tracking feature. It's clear and easy,” says Koivuranta.



Lahdelma & Mahlamäki arkkitehdit
Lahdelma & Mahlamäki Architects


Long-term architectural partners Ilmari Lahdelma and Rainer Mahlamäki founded LM in 1997. Their work is a continuum of Finnish design, with a focus on sustainability, high-quality materials and attention to detail—qualities that come together with cutting-edge technologies and techniques. Both Lahdelma and Mahlamäki are internationally recognized and lauded architects, professors, and lecturers.

The studio has two Tekla BIM awards under its belt, for Derby and Easton, two projects which pushed technology to its limit. These tools are now standard in the design process, giving the team new ways to design and represent each project. 

Are you interested in easy and simple invoicing? 

Try Taimer for free so you can see how it works for your own business!


or watch the on-demand product demo


Taimer Ltd. is a Finnish software company that owns, produces, develops, markets and sells Taimer SaaS-software. It is easy to get started with Taimer, and the product is simple to use.

Taimer is not limited to any specific industry. It is designed to scale as the business grows. Taimer has been developed based on the needs of customers with strong expertise in project, sales, resource management, invoicing, billing, and time management.

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