--- title: Yhteystiedot --- ![TJK Engineering Oy 8k](https://tjk-engineering.fi/hs-fs/hubfs/TJK%20Engineering%20Oy%208k.png?width=2000&name=TJK%20Engineering%20Oy%208k.png) ![stardust-two-col-01](https://www.leanlabs.com/hubfs/sr-assets/stardust/stardust-two-col-01.jpg) A top free theme since 2020 #### Built for SaaS and tech startups, but usable by anyone. Sprocket Rocket is the fastest way to get a high-converting, pro-level site. Trusted by 1,000+ startups and over 10,000 companies of across HubSpot, it’s designed to look great & drive results.  Get Sprocket Rocket Free ![stardust-two-col-01](https://www.sprocketrocket.co/hubfs/sr-assets/stardust/stardust-two-col-02.png) Upgraded for 2025—Faster launcher than anyone #### A website that looks pro on day one & loads like a rocket. Our new design presets just saved you a day (or more). Plus you get powerful customization tools & built-in speed optimizations that make Sprocket Rocket outperform right out of the box. ###### Light Years Ahead Rapid Prototyping in HubSpot Check out the Presets ## Yhteystiedot ## Tomi Koistinen Chief Executive Officer / Field Service Engineer [+358 45 156 8344](tel:+358451568344) [tomi.koistinen@tjk-engineering.fi](mailto:tomi.koistinen@tjk-engineering.fi) Lahdenperäntie 137 73100 Lapinlahti ## Laskutustiedot [laskutus@tjk-engineering.fi](mailto:laskutus@tjk-engineering.fi) Y-Tunnus: 3462883-2 VAT-tunnus: FI34628832 Verkkolaskuosoite : 003734628832 Operaattoritunnus: 003708599126 Välittäjä: Open Text Oy ### Ota yhteyttä! ## Contact Us   Tomi Koistinen [+358 45 156 8344](tel:+358451568344) [tomi.koistinen@tjk-engineering.fi](https://tjk-engineering.fi/tomi.koistinen@tjk-engineering.fi?hsLang=fi)   ## Why people love Sprocket Rocket. *I had a great experience working with the team. I quickly learned how to use the tool on my own and if I ever got stuck, they were there to answer my questions. Would definitely recommend!* ![testimonial-thumb-1](https://www.lean-labs.com/hubfs/marketplace/sr-theme-fintalent/testimonial-thumb-1.png) Denisse Atkinson Product Designer, Google *The template is really nice and offers quite a large set of options. It’s beautiful and the coding is done quickly and seamlessly. Thank you!* ![Denisse Atkinson](https://f.hubspotusercontent20.net/hub/275827/hubfs/sr-assets/pattern-library/sr-cards-testimonial-slider-02/02.jpg?width=50&height=50&name=02.jpg) Chris Sanford Product Designer, Google *I’ve had the pleasure of working with Sprocket Rocket since its inception and find it to be an invaluable tool in helping modernize our HubSpot build process.* ![testimonial-thumb-3](https://www.lean-labs.com/hubfs/marketplace/sr-theme-fintalent/testimonial-thumb-3.png) Gabrielle Francis Product Designer, Google *I had a great experience working with the team. I quickly learned how to use the tool on my own and if I ever got stuck, they were there to answer my questions. Would definitely recommend!* ![testimonial-thumb-1](https://www.lean-labs.com/hubfs/marketplace/sr-theme-fintalent/testimonial-thumb-1.png) Denisse Atkinson Product Designer, Google *The template is really nice and offers quite a large set of options. It’s beautiful and the coding is done quickly and seamlessly. Thank you!* ![Denisse Atkinson](https://f.hubspotusercontent20.net/hub/275827/hubfs/sr-assets/pattern-library/sr-cards-testimonial-slider-02/02.jpg?width=50&height=50&name=02.jpg) Chris Sanford Product Designer, Google *I’ve had the pleasure of working with Sprocket Rocket since its inception and find it to be an invaluable tool in helping modernize our HubSpot build process.* ![testimonial-thumb-3](https://www.lean-labs.com/hubfs/marketplace/sr-theme-fintalent/testimonial-thumb-3.png) Gabrielle Francis Product Designer, Google ## Get started with Stardust. Skip the design hassle. We’ll install Stardust for free—so you can easily style and launch a polished HubSpot site in minutes #### Get started with Stardust for free First Name Last Name Email \* ![stardust-two-col-offer](https://www.leanlabs.com/hubfs/sr-assets/stardust/stardust-two-col-offer.png) [![TJK Engineering Oy 8k](https://tjk-engineering.fi/hs-fs/hubfs/TJK%20Engineering%20Oy%208k.png?width=2000&name=TJK%20Engineering%20Oy%208k.png)](https://tjk-engineering.fi?hsLang=fi) - - - - [Palvelut](https://tjk-engineering.fi/palvelumme) - Metallityöt - 3D-Tulostus - 3D-Suunnittelu - [Yarbo monitoimirobotit](https://yarbofinland.fi/) - Alihankinta - [Tietoa meistä](https://tjk-engineering.fi/yhteystiedot) - [Yhteystiedot](https://tjk-engineering.fi/yhteystiedot) - [Yrityksemme](https://tjk-engineering.fi/yhteystiedot) ©2026 TJK Engineering Oy. Kaikki oikeudet pidätetään. [Tietosuojaseloste](https://tjk-engineering.fi/tietosuojaseloste?hsLang=fi)