The Team

We strive to deliver the best possible SMS services to the best possible price to our customers around the world. All from our offices in Denmark and Germany. GatewayAPI is owned and operated by ONLINECITY.IO, which since 1999 has pushed the boundaries of advanced but easy to use platforms. In addition to GatewayAPI, ONLINECITY.IO owns and operates the omnichannel marketing and communication platform, RelationCity, as well as the IoT SIM card platform NexCon.io.

Snapshots

Steffen R. Kræmmer (CEO) and Thomas Hofmann (Founder and Co-owner) discuss strategy at our office in Copenhagen

Quick stand-up meeting

Snapshot of one of our many virtual team meetings

Team members listening attentively to the panel discussion in connection with the Strategy Day in 2023

A look at today’s SMS traffic

Mystery solving during our teambuilding event

River cruise in connection with the 2023 summer party

The putting technique is perfected before the games begins at the summer party in 2022

Company first aid course with demonstration of the Heimlich maneuver

Lasertag battle as part of the Christmas party of 2023

Meet our fantastic team!

Steffen R. Kræmmer
Steffen R. Kræmmer
CEO
+45 66118311

Steffen has many years of management experience from Mærsk, Deloitte and Ørsted, which he draws on to ensure the continued growth of GatewayAPI. In his spare time, Steffen appreciates food, wine and sports.

Steffen R. Kræmmer
CEO
Kennet Darell Larsen
Kennet Darell Larsen
CTO & Product Owner
+45 66118311

As CTO and Product Owner, it is Kennet’s finest task to set the strategic direction for the company’s technology and platforms, as well as optimizing procedures and motivating the employees. In his spare time, Kennet loves to be physically active, be it skiing, mountain biking or paddleboarding. He has also attended more than 100 concerts for a Danish festival as he was a volunteer for over 10 years.

Kennet Darell Larsen
CTO & Product Owner
Thomas Hofmann
Thomas Hofmann
Founder & Co-owner
+45 66118311

In 1999 Thomas founded the company ONLINECITY.IO, which operates GatewayAPI. Today he is co-owner of the company as well as CEO for the omnichannel platform RelationCity, which is also operated by the ONLINECITY.IO team. Thomas values high quality and is 100% the biggest fan of our customers.

Thomas Hofmann
Founder & Co-owner
Birol Altinok
Birol Altinok
Co-owner
+45 66118311

Birol has since 2001 been co-owner of the company ONLINECITY.IO, which operates GatewayAPI. Birol contributes with a flair for business development, strategy and customer care which he today uses on developing the subsidiary company, MyBase, which is a property rental business.

Birol Altinok
Co-owner
Martin Pløger
Martin Pløger
Co-owner & CCO
+45 66118311

Martin is co-owner and CCO of the company ONLINECITY.IO, which owns and operates GatewayAPI. Furthermore, Martin is CEO of the IoT-platform NexCon.io, which is also operated by the ONLINECITY.IO team. Martin is a great team player and has a natural talent for sales where he enjoys getting familiar with every aspect of the customers’ businesses.

Martin Pløger
Co-owner & CCO
Morten Andersen
Morten Andersen
Global Lead Business Development
+45 50504222

Morten has extensive experience in sales and customer service, which he has worked with for over 30 years. He is also a seasoned veteran in the SMS industry where he since 2008 has worked at several companies as Sales Manager. Leisure time is spent running and enjoying family life with a dog, guinea pig and robotic lawnmower.

Morten Andersen
Global Lead Business Development
Tanja Katariina Hansen
Tanja Katariina Hansen
Regional Director
+45 66118311

Tanja is our Regional Director and leads the company’s commercial efforts in Central Europe together with our Munich-based team. She loves helping clients and as a Finn living in Bavaria, she thrives in an international environment. In her free time, Tanja’s favorite thing is jumping in her minibus with her family to go windsurfing on a local lake.

Tanja Katariina Hansen
Regional Director
Mathias B. Knudsen
Mathias B. Knudsen
Head of Commercial Operations
+45 31 71 92 24

Mathias is always smiling and is a favorite among our customers. He is constantly ready to fix our customers’ problems and needs. Mathias is also a hardcore crossfitter who can do push-ups upside down and carry all of us out of the building should a fire occur!

Mathias B. Knudsen
Head of Commercial Operations
Madss Storm Hansen
Madss Storm Hansen
Commercial Operations Specialist
+45 66118311

With a service commitment beyond the ordinary, Madss makes sure to help our customers with big and small things. His tone is cheerful, while he also makes a point of providing support with as much professionalism and presence as possible. His free time is spent at concerts and festivals, as well as gathering the courage to try bungee jumping one day.

Madss Storm Hansen
Commercial Operations Specialist
Jeppe Petersen
Jeppe Petersen
Team Coordinator Global Support
+45 66118311

At GatewayAPI, our goal is to have the world’s best support department, and Jeppe is the man who every day helps out to make sure we reach that goal. You can always find Jeppe on our support chat. Go on. Try sending him a message and check for yourself.

Jeppe Petersen
Team Coordinator Global Support
Martin Laue Christensen
Martin Laue Christensen
Technical Supporter
+45 66118311

Do you need technical support? Then you might be lucky enough to speak to Martin! In addition to his 20+ years of experience in the industry, Martin’s cheerful disposition is one of the greatest assets he brings to ONLINECITY.IO.  In his spare time, he loves playing computer games, going geocaching with his son and studying AI, which he is incredibly fascinated by.

Martin Laue Christensen
Technical Supporter
Kasper Hermansen
Kasper Hermansen
Techinal Supporter
+45 66118311

As a Technical Supporter, Kasper is ready to help new customers with their setup on our platforms. He enjoys the balance between the technical aspect and the customer contact as he is an expert at understanding and solving issues. In his spare time, Kasper loves nerdy stuff such as bouldering and playing board games. Furthermore, he is always ready to share travel tips as he has lived in the Czech Republic for several years.

Kasper Hermansen
Techinal Supporter
Julius K. Gretzinger-Otto
Julius K. Gretzinger-Otto
Customer Success Specialist
+45 66118311

As one of our Customer Success Specialists, Julius is ready to help our customers in any way he can – he loves interacting with people and providing exceptional service. Julius’ hobbies cover everything from nerdy games to niche sports, and he continues to add new projects to the list. As he is also an avid traveler, Julius can advise you on anything from the best food to places to stay in many locations around the world!

Julius K. Gretzinger-Otto
Customer Success Specialist
Anders Kromann Bak
Anders Kromann Bak
Customer Success Specialist
+45 66118311

Anders is super enthusiastic about helping customers achieve their goals. He takes great satisfaction in working closely with customers to understand their unique requirements and is always eager to go the extra mile to ensure their success. In his spare time, Anders enjoys sports, especially football and golf, as well as being with friends and family.

Anders Kromann Bak
Customer Success Specialist
Anika Kristiansen
Anika Kristiansen
Sales Supporter
+45 66118311

Anika is employed as a sales supporter and assists the sales team with pipeline management, where she helps keep track of the many leads that come in on a daily basis.

Anika Kristiansen
Sales Supporter
Mads Brogaard
Mads Brogaard
Finance Manager
+45 66118311

Mads is passionate about optimization and together with Steffen R. Kræmmer he is in charge of securing the continous growth of GatewayAPI. Mads always strive to make a positive impact on both customers and colleagueas, which earned him an award at his prior workplace for being exceptionally positive and helpful.

Mads Brogaard
Finance Manager
Helena Rasmussen
Helena Rasmussen
Financial Controller
+45 66118311

As Financial Controller, Helena helps ensure that all books, receipts, payments etc. are in order. She also has a keen eye for optimizing processes in the finance department and implementing new systems. In her spare time, she loves to travel and spend time with friends and family, whether it’s going for a walk, a dinner, a game night or something else entirely.

Helena Rasmussen
Financial Controller
Oliver Sigvardt
Oliver Sigvardt
Student Finance Assistant
+45 66118311

Oliver assists in the accounting department, and helps make sure that the bookkeeping and reporting is in order. He is currently studying a bachelor’s degree in Business Economics, and in his spare time he likes to both play and watch football. At the office, he is known for creating a pleasant vibe.

Oliver Sigvardt
Student Finance Assistant
Lasse Work Bøg
Lasse Work Bøg
Information Security Specialist
+45 66118311

Lasse has a background as a computer scientist, and has afterwards specialized in IT & information security. At GatewayAPI.com, Lasse manages a number of IT security-related tasks, including penetration testing and data security. Lasse also helps with the annual GDPR ISAE3000 audit and other certifications.

Lasse Work Bøg
Information Security Specialist
Casper Broberg Ovesen
Casper Broberg Ovesen
Compliance & GDPR Specialist
+45 66118311

Casper helps control all things compliance in the company. He likes the range of tasks and actually enjoys reading legal texts. In his spare time, he leaves the papers behind as he is an active family dad who loves everything from running and golf to alpine skiing. Casper has also admitted that he has reached an age where he actually enjoys garden work, too.

Casper Broberg Ovesen
Compliance & GDPR Specialist
Nadia Panzio
Nadia Panzio
HR Specialist
+45 66118311

Nadia takes pride in making our customers feel as empowered as possible. One of the most important things for Nadia when she onboard new customers is to make them feel safe throughout the process. That also means that she is always ready to answer questions, and help customers get out of a gridlock. When Nadia is not helping our customers, she enjoys her free time with her dog, Jeppe.

Nadia Panzio
HR Specialist
Mark H. Christensen
Mark H. Christensen
UX Specialist & Marketing Coordinator
+45 66118311

Mark’s goal in ONLINECITY.IO is to give you the best experience possible on GatewayAPI.com via intuitive and smooth UX. In addition, he provides ongoing coordination on the marketing team.

Mark H. Christensen
UX Specialist & Marketing Coordinator
Morten A. Riber
Morten A. Riber
Online Marketing Manager
+45 66118311

Morten combines a penchant for copywriting with a great deal of technical knowledge in a number of areas, including SEO, Google Ads, Analytics, Facebook Ads, LinkedIn Ads and so forth, whereby he helps to ensure a steady customer influx. Leisure activities include do-it-yourself projects, book-reading and cultural experiences.

Morten A. Riber
Online Marketing Manager
Mette Fjeldhoff
Mette Fjeldhoff
Communication Specialist
+45 66118311

Mette is our in-house rhetorician and language nerd, and she ensures that ONLINECITY.IO’s communication is spot-on. When she’s not immersing herself in grammatical details and linguistic phrasing, she spends her spare time playing card games, going to coffee bars and enjoying cultural experiences.

Mette Fjeldhoff
Communication Specialist
Jack Junge
Jack Junge
Designer & UI/UX Specialist
+45 66118311

In addition to being a great gamer, Jack has a keen sense on how to design modern and good-looking interfaces, which benefits all of our platforms. In other contexts, Jack is used to being teased for rooting for Chelsea F.C., but has quickly learned that at GatewayAPI, it matters a whole lot more which team you root for in CS:GO!

Jack Junge
Designer & UI/UX Specialist
Marco Jacobsen
Marco Jacobsen
Web Designer
+45 66118311

As a web designer, Marco loves modern interfaces and is passionate about creating web designs that deliver a great user experience. He also creates amazing videos for the entire company. In his spare time, he loves gaming and photography, and is a huge fan of 80s and 90s music – especially R.E.M. and Bee Gees (or Shania Twain, if it is for dancing to).

Marco Jacobsen
Web Designer
Sami Rami Ouchrif
Sami Rami Ouchrif
Video & Storytelling Specialist
+45 66118311

Sami is in charge of creating video content that can aid you in setting up various integrations, features, plugins etc. Sami has previously been employed as Lead Video Producer at an esports company, and loves to use his skills to create catchy educational and promotional videos for GatewayAPI. 

Sami Rami Ouchrif
Video & Storytelling Specialist
Morten Skyt
Morten Skyt
Senior Web Developer
+45 66118311

Morten is a seasoned coder and an old hand at front end development. Morten takes pride in creating great usability that upholds the most recent web development standards. Morten is an important resource to the company and is always ready to help when we need him.

Morten Skyt
Senior Web Developer
Jeppe Larsen
Jeppe Larsen
Lead Developer
+45 66118311

Building on years of experience from successful software startups, Jeppe tackles the hard software engineering challenges head on. Jeppe has a “lets get things done” attitude, and a proactive mind. He has a strong passion for science fiction and red wine.

Jeppe Larsen
Lead Developer
Esben A. Sonne
Esben A. Sonne
Backend Developer
+45 66118311

At GatewayAPI all skills can come into play. As well as being a fantastic backend developer, Esben is also our in-house gin expert, who gets the office party going by serving extremely tasty (and strong) gin-based cocktails.

Esben A. Sonne
Backend Developer
Jesper Lund
Jesper Lund
Senior Operations Engineer
+45 66118311

As the true DevOps-Jedi he is, Jesper thrives in the versatile tasks of the team’s daily work where many different skills come into play. It’s not a problem either to throw Jesper in at the deep end, as he is a former swimmer and has competed in the World Championships for masters back in 2004. When he doesn’t spend his time building software, Jesper is an avid Lego-builder.

Jesper Lund
Senior Operations Engineer
Bue Petersen
Bue Petersen
Senior DevOps Engineer
+45 66118311

Bue has a decade experience with operations, including Continuous Delivery (CD) and automation. He helps make sure that the foundations of our platforms are rock-solid where he among other things focus on scaling and automating infrastructure operations by applying his expert level understanding of Continuous Delivery principles. In his spare time, he is a major outdoor enthusiast.

Bue Petersen
Senior DevOps Engineer
Thomas Hedelund Larsen
Thomas Hedelund Larsen
Senior DevOps Engineer
+45 66118311

Thomas has many years of experience in developing, especially focusing on operation and processes. He has a special interest in improving infrastructures and in tools that automate processes to make it easier for developers to work and to secure stability. In his spare time, Thomas can often be found either in front of the computer or out in nature with his camera.

Thomas Hedelund Larsen
Senior DevOps Engineer
Thor T. Lind
Thor T. Lind
Full Stack Developer
+45 66118311

Thor loves to explore new technologies and create state-of-art web applications and user interfaces. He is particularly passionate about interaction design, user experience and user-centered design. He has previously worked in the robotics industry, and otherwise likes to spend his free time on programming projects and classical piano when he has the time.

Thor T. Lind
Full Stack Developer
Nicolaj Gajhede Christiansen
Nicolaj Gajhede Christiansen
Frontend Developer
+45 66118311

As Frontend Developer, Nicolaj helps develop our platforms, including RelationCity, where his focus is on accessibility and UX. Over the years, Nicolaj has gained considerable experience with a wide range of code languages ​​and systems, which he can use to help in different parts of GatewayAPI.com. His leisure time is spent coding side projects, gaming and cycling.

Nicolaj Gajhede Christiansen
Frontend Developer
Tobias Faucette
Tobias Faucette
Web Developer
+45 66118311

Tobias loves to build websites and bringing designs to life as well as ensuring a good user experience. At ONLINECITY.IO, the ambitions are high when it comes to websites, but this has not intimidated Tobias at all. He primarily spends his leisure time with gaming, photography and small coding projects.

Tobias Faucette
Web Developer
Oliver Glozmann Bork Hansen
Oliver Glozmann Bork Hansen
Student Assistant, Development
+45 66118311

As Student Assistant in Development, Oliver focus on integrations, and is the man to go to if you need an integration with your preferred system. When he is not working at GatewayAPI, he studies Software Technology at DTU with a focus on AI and Deep Learning. In addition, Oliver generally just enjoys working with code, whether it’s AI or something more down-to-earth, such as GUI or backend software.

Oliver Glozmann Bork Hansen
Student Assistant, Development
Danila Mouzytchenko
Danila Mouzytchenko
Designer
+45 66118311

Danila is extremely skilled in UX design and has an amazing ability to combine beautiful design with high usability – they actually don’t have to exclude each other. Danila has settled down in Denmark but has over the years worked for countless brands abroad.

Danila Mouzytchenko
Designer
Hans Duedal
Hans Duedal
Software Architect
+45 66118311

After several years of Red Bull induced self-employment, Hans joined our team in 2006. Hans is the architect behind GatewayAPI.com, and a gifted C++ & Python Software Engineer. Although he changed to another position, he still serves in an advisory role and checks in for coffee from time to time.

Hans Duedal
Software Architect
Have a question?

Please feel free to contact us. Our customer support will be happy to help you!

Check out our trophy cabinet

Awards

We have on numerous occasions won the Børsen Gazelle Award, which is awarded to fast-growing companies. Furthermore, we are repeatedly awarded with a Triple-A Credit Rating from Bisnode.

Our prizes
Jack Junge, Designer & UI/UX Specialist

At GatewayAPI, I have really had the opportunity to strengthen my skills. When I started, I was a newbie within my profession. Luckily, I got a leader that had great confidence in my skills and invested in my further development. That is worth a lot!

Mathias Bork Knudsen, Head of Commercial Operations

When I joined the company, I did not quite know which direction I was going career-wise. I started out as a supporter, but quickly found out that I had a talent for sales, which I have subsequently had plenty of room to develop. Today I am in charge of operations and also handle sales, purchasing and servicing of large customers.

Interested in joining our team?

This is how you apply

GatewayAPI is part of ONLINECITY.IO, and we’re always looking for talented new members for our amazing team. To see open positions or just send us your application, visit ONLINECITY.IO!

As a member of our team, you get:

  • The chance to work with the latest technologies in both programming and operation.
  • The chance to enter into a strong professional team and boost your own skills to new heights.
  • An important role where you generate results in close cooperation with the rest of the team.
  • Plenty of room for nerding out, being creative and developing new ideas and skills.
  • Loads of perks!
Feel free to stop by

Our offices

C.A. Olesens Gade 4

Aalborg, Denmark
+45 66118311

HQ

Buchwaldsgade 50

Odense, Denmark
+45 66118311

Danneskiold-Samsøes Allé 41

København K, Denmark
+45 66118311

Landsberger Str. 314

Munich, Germany
+45 66118311

GatewayAPI

Bank information

Bank information – International

IBAN: DK3468450009418239
BIC/SWIFT: SYBKDK22

Bank information – Denmark

Sydbank: 6845 0001357732
IBAN: DK6168450001357732
BIC/SWIFT: SYBKDK22

Bank information – Sweden

IBAN: DK0968450009420532
BIC/SWIFT: SYBKDK22

Bank information – Norway

IBAN: DK8468450009420540
BIC/SWIFT: SYBKDK22

GatewayAPI

Company information

VAT-ID

DK27364276

VAT-ID

HBR 27 67 91

Accountant

Ernst & Young (EY)

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