At SGSI, we help organizations see their business better.

We are a leading service provider of high-end GIS technologies for efficiently solving complex business problems. Through robust mapping and visualization of geographic business, customer, network and environmental data, SGSI allows organizations and consumers to both see and understand patterns, trends, and opportunities, regardless of the information being mapped.

Some of the world’s largest telecom companies chose SGSI to visualize network performance, and regional and national retail companies use our services to identify growth and expansion opportunities. We work with local and regional utilities, government agencies and transportation departments to help communities run better.

As a client, your long-term success is more important to us than a quick-fix or a short-term win. For nearly 25 years, SGSI has delivered the technical expertise and customer experience our customers rely on to meet their business goals and drive their organizations forward.

Our Team

SGSI is a nimble and responsive team of software engineers, project managers and business analysts. Our small team works in an open floor plan to more easily share ideas and collaborate on solutions. SGSI has earned the Pitney Bowes Software Business Partner of the Year designation numerous times and are frequent contributors at conferences and workshops.

John Tinker

President

With SGSI Since: 1993

What I do at SGSI: Most things except writing code and filing taxes – I leave that to experts on the team.  My passion is for helping people solve real-world business problems that are connected to location.

When I’m not at work I enjoy: Mountain biking, skiing, mountain climbing, photography, parenting two wonderful children.

Favorite Location on the globe:  Grand Prismatic Spring, Yellowstone National Park, WY (44.5253,-110.8382)

Matthew Katinsky

Software Development Manager

With SGSI Since: 1995

What I do at SGSI: I perform design, construction, and testing of custom software. I am responsible for modeling and development of mathematical/geometric algorithms and making sure the software does what we said it would.

When I’m not at work I enjoy: Playing the fiddle, jogging, hiking, knitting, reading out loud with my family, playing soccer with my boy, watching my daughter dance, cooking, learning French and Spanish.

Favorite location on the globe: Montpelier, VT (44.2606,-72.5756)

Nancy McGinnis

Business Operations Manager

With SGSI Since: 2001

What I do at SGSI:  I take care of all things office and accounting.

When I’m not at work I enjoy: Spending time with my husband and three daughters, attending musicals, reading and discussing books with my book club.

Favorite Location on the globe: Home, Sammamish, WA (47.6089, -122.0422)

Jason Kaden

Program Manager

With SGSI Since: 2010

What I do at SGSI: I make sure our customers get the best possible products by overseeing the entire process of creating them– from initial conception to delivery and providing them with continuous support and guidance throughout the product’s lifecycle.

When I’m not at work I enjoy: Hanging out with my wife and kids, cooking, hiking, skiing, biking, watching sports. I like to eat, sleep, repeat.

Favorite location on the globe: Summit of Mt. Aspiring on the South Island of New Zealand (-44.3831,168.7162)

Tim Culhane

Software Engineer

With SGSI Since: 2017

What I do at SGSI: I engineer and maintain custom GIS software.

When I’m not at work I enjoy: Video games, board games, card games, other games, sleep.

Favorite location on the globe: Home, Seattle, WA (47.60897, -122.33230)

Christopher Alexander

Technical Analyst

With SGSI Since: 2018

What I do at SGSI: I test custom GIS solutions and software and provide customer support.

When I’m not at work I enjoy: Spending time with my family, running, reading and playing word games.

Favorite location on the globe: Upper Pisang, Nepal (28.616240, 84.151714)

Eric Jones

Technical Analyst

With SGSI Since: 2018

What I do at SGSI: I design, test, maintain, and provide technical support for custom GIS applications.

When I’m not at work I enjoy: Bicycling, orienteering (map and compass navigation races), running, eating, sleeping.

Favorite location on the globe: Valle Francés, Torres del Paine, Chile -50.9826, -73.0538

Holly Alonzo

Software Engineer

With SGSI Since: 2018

What I do at SGSI: I follow good engineering practices to deliver quality code to our customers.

When I’m not at work I enjoy: Reading, playing softball, watching movies and gaming with friends. Lok-tar ogar!

Favorite location on the globe: Bora Bora, French Polynesia (-16.54195,-151.73609)

Tim Porter

Software Engineer

With SGSI Since: 2018

What I do at SGSI: I build cool GIS software.

When I’m not at work I enjoy: Video games, hiking, yoga, and playing with my cats.

Favorite location on the globe: Kauai, Hawaii (22.0519,-159.6259)

Brendan Woodell

Software Engineer

With SGSI Since: 2019

What I do at SGSI: I get to solve complex GIS software problems and develop new features.

When I’m not at work I enjoy: I play Ultimate Frisbee in the city league and travel for tournaments. I spend my downtime at home working on craft projects, I’ve made cosplay armor for Emerald City Comic Con and I 3D Print/Paint miniatures for the D&D game I run.

Favorite location on the globe: Bury St. Edmunds, England. (52.2429, 0.7105)

Se Yeon Kim

Software Engineer

With SGSI Since: 2019

What I do at SGSI: I build GIS software and make it greater.

When I’m not at work I enjoy: Playing video games and playing with my birds.

Favorite location on the globe: My home town, Seoul, South Korea (37.56461,126.97908)

Ryan Gorey

Technical Analyst

With SGSI Since: 2019

What I do at SGSI: I rigorously test custom GIS software to ensure consistent delivery of high-quality tools and solutions for customers.

When I’m not at work I enjoy: Hiking, yoga, cooking, strategy games, and petting strangers’ dogs.

Favorite location on the globe: Port Townsend, WA (48.117039, -122.760447)

Meghan Durovchic

Office Admin/Bookkeeper

With SGSI Since: 2019

What I do at SGSI: I do general office management and bookkeeping to ensure operations run smoothly.

When I’m not at work I enjoy: Reading and playing with my cat.

Favorite location on the globe: Whistler, Canada. (50.1281,-122.8642)

John Schlosser

Founder / Strategic Consultant

With SGSI Since: Inception

What I do at SGSI: I am the founder of SGSI and the company historian. I consult on business strategy and product opportunities and envision new spatial applications.

When I’m not at work I enjoy: Hiking and international travel, sometimes both at once.

Favorite location on the globe: Kealakekua Bay, Hawaii (19.2825, -155.545)

Our Values

Provide Great Customer Service

We strive to be the most responsive vendor on your team. We want to be your partner and consultant for years to come, not just another company that sells you software.

Solve problems

We believe in solving problems, especially the hard ones. We work closely with our customers to understand what they are trying to accomplish and to craft solutions that provide answers. We have a long and trusted relationship with the Pitney Bowes Software team, and have worked with the team that first developed the original MapInfo Pro. We bring this expertise into every customer engagement.

Invest in Industry Expertise

We work with all types of businesses and have solved a lot of data challenges over the decades. We know what works and what doesn’t, and we invest in keeping our technical expertise up to date. Our team has in-depth expertise from working with telecommunications companies, retailers, and government agencies.

 Location

We are located in beautiful downtown Seattle on the 30th floor of One Union Square.


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Work With Us

Interested in joining out team? Head on over to our Careers page to see our open positions and apply.