IIASA Geo-Wiki @geo-wiki.org Geo-Wiki provides anyone with the means to actively engage in the monitoring of the Earth's surface by evaluating satellite, drone, or ground-level imagery, while contributing to global environmental research.
https://www.geo-wiki.org
SocialPilot @socialpilot.co All-in-One Social Media Management Platform
Trusted by 15,000+ agencies and brands
FOSS4G 2025 Auckland @foss4g.org 
Guillaume Sueur @gsueur.bsky.social Geospatial entrepreneur @Geomermaids, Cambridge, MA. Data wrangler and occasional developer. Open source advocate.
Helping French companies to operate in the US.
Licensed Real Estate agent in Massachusetts.
Radiant Earth @radiant.earth Increasing shared understanding of our world through community-led initiatives that make data easier to access and use.
radiant.earth
@sparkgeo.bsky.social @sparkgeo.bsky.social 
MapTiler @maptiler.bsky.social 🗺️ Maps for developers: Visual tools, global data, SDK & APIs for web, mobile, and enterprise applications.
Tembo @tembo.io Build any application on Postgres, the "everything database". Tembo offers use case specific (vector, geospatial, timeseries, search, and more) managed Postgres, powered with extensions.
Mapbox @mapbox.com Mapbox powers navigation for people, packages, and vehicles everywhere.
www.mapbox.com
Register for BUILD with Mapbox: https://www.mapbox.com/build
QField for QGIS @qfield.org I love to go out collecting spatial information, share it via
QFieldCloud and process it in the office with my best friend @qgis
Hans van der Kwast @qwast-gis.com Associate Prof. #ihedelft | Physical Geographer | Owner of QWAST-GIS | #OpenSource advocacy | board member @qgis.nl | #gisocw | #OSGeo Charter Member | #QGIS
Alexander Kmoch @allixender @allixender.bsky.social Associate Professor at Landscape Geoinformatics @lgeoinformatics.bsky.social, University of Tartu #Geoinformatics #geospatial #DGGS #OGC | CEO Geolynx_EE
SIG à l'école @sig-a-lecole.bsky.social Encourager et soutenir les #profs qui aiment les #SIG! Outils pour l'enseignement #primaire et #secondaire par
@EsriCanada #ArcGISOnline
anglais: @gis4teachers.bsky.social
GIS in Education @gis4teachers.bsky.social Helping Canadian educators #TeachWithGIS!
Free #GIS tech, resources & support for educators, students, #GISAmbassadors & partners!
En Français @sig-a-lecole.bsky.social
Jody Garnett @jodygarnett.bsky.social A mapish developer working at GeoCat. Active with the OSGeo and LocationTech communities working on a wide range of free and open source geospatial goodness!- J Juan Luis @juanluisrp.bsky.social
GeoNetwork opensource @geonetwork-opensource.org GeoNetwork is a catalog application to manage open as well as spatially referenced resources. It is used in numerous Open Data and Spatial Data Infrastructure initiatives across the world.
PostGIS @postgis.bsky.social Spatial types and functions for PostgreSQL. Geometry, geography, you name it.
Jay 🦋 @jay.bsky.team Founder & Chief Innovation Officer @ Bluesky
Working on @attie.ai
🌱 🪴 🌳
Teun Ticheler @teun.ticheler.net Bekend van X | Patatje-Joppie-Chips-Fanaat
Sarah Bell @sarahbell.bsky.social Cartography • Geo-visualization • Geo-Scientist • Esri
Keynote speaker • Rock climber • behance.net/sarahbellmaps
Moriarty Maps @moriartymaps.com Cartography and graphics @postgraphics.bsky.social | Big ol' fan of @wfmu.bsky.social
https://moriartymaps.com/
Robert Simmon @rsimmon.bsky.social Data Visualization. Ex-Planet & NASA Earth Observatory. Blue Marble, Earth at Night, color, cartography, occasionally skewed views of Earth. Looking for a job.
Kenneth Field @kennethfield.bsky.social Cartography is my passion & profession. Author of CARTOGRAPHY. & THEMATIC MAPPING. Maps+drums+snowboards+footy+sarcasm. 🇬🇧 in 🇺🇸 Views mine. links.esri.com/mappyhour
Andy Woodruff @awoodruff.bsky.social cartographer of things
https://andywoodruff.com/
Hannah Dormido @hannahdormido.bsky.social 🗞️ Visual journo + 🗺️ cartographer
🎨 Arts & crafts, DIYs, side quests
🐈 Cat mom
🇵🇭 | DC
Signal: hannahdormido.13
vicky @vickyjohnsondahl.bsky.social part beagle and part disaster
Jerry Shannon @jerry-shannon.bsky.social Geographer working at University of Georgia. Community geography, critical GIS, health, food systems, housing. Website: jerry.shannons.us
Jen Mapes @mapesgeog.bsky.social Community geographer, cartographer, pedestrian, cyclist. Author of "The New American Small Town: Lessons for sustainable urban futures" (West Virginia University Press, June 2025). https://communitygeography.kent.edu/
Wanmei L 🌎🛰️ @mapsbyw.com Science Data Visualizer | Seeking Next Opportunity | Former NASA Earth Observatory 🌎🛰🗺 | UCLA Alumni 🎓 | Award-Winning Cartographer 🧭 | 🎙️ President of Women in GIS
Daniel Huffman @pinakographos.bsky.social An arboreal, poly, gender non-participant mapmaker.
• Portfolio & tutorials: somethingaboutmaps.com.
• Prints: https://somethingaboutmaps.com/Storefront
• You can support my art & teaching at http://patreon.com/pinakographos. 
Aly Ollivierre @alyolli.bsky.social Award-winning Freelance Cartographer @tombolomapsdesign.bsky.social | Ex-NatGeo Senior Cartographer
Andrew Tyrrell @southarrowmaps.co.nz 🗺🇳🇿🇨🇦🏔 NZ-based cartographer, actually now Canada-based. Blender, QGIS, ArcGIS Pro, Illustrator. Partial to a good mountain.
southarrowmaps.co.nz
Rosemary Wardley 🏳️🌈 @rosemarywardley.bsky.social Cartographer at NatGeo | past Board member @ NACIS
geographer | adventurer | Rhode Islander | she/her
Katie Kowalsky @mapwitch.bsky.social “just look at that parking lot, Larry”
used to talk about maps a bit but now I mostly speak legalese. rootless cosmopolitan elite (just say jewish, it’s faster), but mostly a movie nerd. from the great lakes but now in the bay. oakland forever.
Nat Henry @nathenry.com Director of Henry Spatial Analysis | Professional Geographer | Seattleite | Into maps, health data, walking places
Jonah @jonahadkins.bsky.social Cartography Lead @ Meta
Greg Fiske @gfiske.bsky.social Putting science on the map at Woodwell Climate Research Center | Cartographer | Analyst | Senior Research Associate | Fly fisher | located in Woods Hole, MA, USA 
Anthony Robinson @arobinson.bsky.social E. Willard and Ruby S. Miller Professor of Geography, Penn State. Director, Online Geospatial Education programs & GeoGraphics Lab. Chair, AAG Cartography & Mapping Specialty Group. Vice Chair, ICA Commission on Geovisualization. Past President of NACIS.
Aaron Koelker @aaronkoelker.bsky.social I'm here for the maps.
My maps: https://aaronkoelker.com/
Get inspired by other people's maps: https://koelker12.github.io/cartography-portfolios/
Harrison Cole @harrisoncarto.bsky.social Cartographer, Geography PhD | mapmaking • design • art • birds | he/him
Rick Lederer-Barnes @upstategis.bsky.social GIS Specialist/Cartographer dba Upstate GIS (UpstateGIS.com)
Located in Upstate NY (greater Capital Region)
Member of NACIS, SCGIS, and NYSGISA
Atlas Guo @cartoguophy.bsky.social A Map Evangelist
CartoGuophy.com
Margot Carpenter @margot-carto.bsky.social Cartographer, spatial designer, coastal GIS nerd.
Aquila Flower @aquilaflower.bsky.social Spatial Institute Director and Professor of Geography and Environmental Studies at Western Washington University. Author of the Salish Sea Atlas. 
Artimaps @artimaps.bsky.social British Cartographer & Artist living in Huntsville, Alabama.
Map maker & GIS consultant.
Including hand-drawn plausible fictitious maps
https://artimaps.com/
Kirsty Maclean @kirstymaclean.bsky.social Mapmaker at Atlas Alba Maps
@atlasalba.com
Gàidhlig agus Beurla.
🏴🤝🇦🇺
www.atlasalba.com
Conspiracy of Cartographers @conspiracyofcarto.bsky.social Cartographer and Artist
Speculative cartography
World-building
Transit mapping
https://conspiracyofcartographers.com/
Keir DuBois @keirtography.bsky.social Imagination made me whatever I am today
Nathan Yau @flowingdata.com Playing with data, visualizing it for humans at flowingdata.com
Riley Champine @rileydchampine.com Cartographer at the University of Richmond Digital Scholarship Lab • Former Graphics Editor at Nat Geo —
🗺️ Map Nerd • 🚲 Bike Commuter • 🚎 Transit Advocate • 🇺🇸 USMNT / 🦘 Richmond Kickers / Fulham FC ⚽️ fan
Julie Witmer @witmaps.ca Cartographer - Julie Witmer Custom Map Design - witmaps.ca
I like cycling, gardening, reading, kayaking, and puzzles; interested in urban planning and community building, specifically in Waterloo Region
RJ Andrews @infowetrust.com Obsessed with data graphics. I design high‑stakes charts.
Founder, Visionary Press • CHARTOGRAPHY weekly
Talks • workshops • consulting → infowetrust.com
Will Chase @willchase.bsky.social Designer, developer, and data person. Currently: Design at Observable. Formerly leading visual storytelling at Axios, and dataviz design at Fidelity 🏳️🌈
https://www.williamrchase.com/
Craig Williams @williamscraigm.bsky.social Cartography and GIS geek. Product Engineering Director, Mapping & Cartography at Esri. Bills, Sabres, University at Buffalo, and Penn State fan.
Ellie Glynn @elliemaps.bsky.social DrPH student @ Johns Hopkins BSPH •
geospatial epidemiology, health geography, and infectious disease • opinions are mine alone
Antonio Antoine @aasmith.bsky.social I make maps about the United States.
#Cartography | #GIS | #Maps
https://antonioantoine.com/
Edward Alexander @makemeamap.bsky.social Mapmaker of military history and historic sites, ska and punk music lift me up, Illini and Chicago sports bring me down
Jeff Olson @profo.bsky.social Geographer, cartogapher, data torturer. UWW alum, OSU alum, UWW professional blabber. Go Pack Go.
UofA Map/GIS Librarian @wyman10.bsky.social William C. Wonders Map Collection, University of Alberta Library. Curation by Wyman Laliberté (he/him) (settler on Treaty 6 land).
WCW Map Collection on Internet Archive
https://archive.org/details/wcw
#spatial #maps #cartography #gis #qgis
JustinColeGIS.bsky.social @justincolegis.bsky.social I am a GIS professional and teacher of GIS. I focus on environmental modeling, remote sensing, LiDAR, and GIS. Also currently working on my PhD in Computing Information Sciences with a focus on HCI and Emergency Management.
David Medeiros @mapbliss.bsky.social GIS and cartography. BW photography. Woodworking. Food, family and adventure. Map posters @ www.etsy.com/shop/MapBliss. BW IG @ www.instagram.com/the.taking.lens/
Mac Loco @macloco.bsky.social Atheist: There's no god. Science advocate. Environment defender. Geo Geek: GIS professional. Liberal: LGBTQ ally, equality, DEI, Woke as hell!
Mary Marek-Spartz @neutralweevil.bsky.social She/her • GIS analyst • Weevil enthusiast • Data Manager @MSP-LTER.bsky.social • Momming in a pandemic 🫠
Lauren Tierney @tierneymaps.bsky.social Senior Product Manager of Mapping & Cartography @ Esri. Previously @washingtonpost.com and National Geographic. Map-maker and geographer. https://linktr.ee/tierneymaps
Dr. Lauren Stachowiak @laurenstacho.bsky.social (they/them) Assoc Prof of Geography at Eastern Washington University | GIS, fire history, and teaching are my jam! Follow along on Instagram too @DendroGIS 🌲🔥🗺️🖖
Alberto Cairo @albertocairo.com Designer, journalist, and professor.
Author of 'The Art of Insight' (2023) 'How Charts Lie' (2019), 'The Truthful Art' (2016), and 'The Functional Art' (2012). NEW PROJECT: https://openvisualizationacademy.org/ 
Mike Hall @thisismikehall.com Award-winning mapmaker and illustrator in Valencia, Spain | My first book THE BOROUGHS OF LONDON is now available! https://www.batsfordbooks.com/book/the-boroughs-of-london | More info: linktr.ee/thisismikehall
Eva Reid, MPA, GISP @theevareid.bsky.social Community builder, map geek, garden nerd, fiber freak, and foodie. #WomenInTech #WomenInSTEM #representingwomen #GIS #DC My posts are mine alone. she/her
Jason Sawle @gis4schools.bsky.social Global Schools Manager at Esri. Supporting schools to teach with and about GIS. Working on the new National Geographic MapMaker app www.esri.com/mapmaker.
#GIS4Good #Equity #CTE #XR
He/Him/His. Views are my own. Ally 🏳️🌈🏳️⚧️
Tim Meko @timmeko.bsky.social Editor (and occasional builder) of graphics, maps and visual stories at the Washington Post.
Andrew @wisemana.bsky.social Map guy in Seattle, formerly DC. I like some stuff and don’t like other stuff
Mapping Creativity @mikelcab.bsky.social 🇪🇺🇪🇦Freelance tabletop game designer, drawing fantasy maps, dungeons, props and other game resources.
🚫NFT🚫AI🚫
COMISSIONS OPEN
linktr.ee/MikelCabriada
Chris Sutton 🌎 @mapyoda.bsky.social Maker of maps. Geography/GIS/Cartography professor. Occasional landscape photographer. Not the English footballer but am available for autographs.
Craig Taylor @craigtaylorviz.bsky.social Creative data artist in the spatial industry. 
Lourdes @missmaps.bsky.social Full-time cartographer, part-time menace.
🇨🇺Se habla espanglish
Erin Greb @eringrebcarto.bsky.social I like to make maps and play in the woods.
www.eringrebcartography.com
@mamataakella.bsky.social @mamataakella.bsky.social Currently doing cartography things @Felt.
Been President @NACIS | Worked @stamen on @meta maps | Head of Cartography @CARTO | Web Cartography Lead @npmap | Cartographic Product Engineer @esri.
Josh Ryan @commonkingfisher.bsky.social Maps. Basketball. Kingfishers 
Jack Swab @jswab.bsky.social 🌎 | 🗺️ | 🏳️🌈
Bill Limpisathian @billl.bsky.social uw-madison map+brain prof丨maps carto research alum
Tim Prestby @timprestby.bsky.social Assistant Professor of Applied GIS at James Madison University | NSF GRF | CaGIS, Journal of Maps Editorial Board | Formerly: Penn Stater, Cartographer at Apple, UW Cart Lab, UW Geospatial Data Science Lab
Gary Kelner ,M.S. @garykelner.bsky.social GIS Specialist | @FortHaysState alum (M.S.) | enjoys karst, #ArcGIS, making maps, #science, and coffee | From Minnesota.| he/him 🌎🔬⛏
Eric Jensen @rangespatialist.bsky.social Geospatial Data Scientist at Desert Research Institute and ClimateEngine.org 🛰️ | Spatial data in climate and conservation 📊🌐🌱 | #EarthEngine @GoogleDevExpert | #RStats #Python
https://t.mbjms.com/331727/4080/0?po=6456&aff_sub5=SF_006OG000004lmDN
Benjamin Hennig @geoviews.bsky.social Geographer + accidental cartographer. Posting about geography, maps & more.
https://geoviews.net/
Tom Armitage @mapnavtom.bsky.social Data Viz, Maps & GIS. Tech Writer for MapTiler. FOSS4G UK 2019 Co-Chair. Honorary Fellow of the University of Edinburgh GeoSciences. Views are all mine.
NACIS @nacis.bsky.social Do you #lovemaps? The North American Cartographic Information Society has been the home for map enthusiasts since 1980.
Use #nacis to be featured.
Learn more at nacis.org
Geospatial FM @geospatial.fm Tracking the emerging scene of geospatial foundation models: www.geospatial.fm.
Carlos Silva @arcvancouver.bsky.social he/him/his - local GIS guy. Apparently, "king of the well chosen gif" thx KB! Opinions here are my own, not reflective of my employer! 49.25°N, -123°W
Richard Caballero @richardc117.bsky.social Product Designer @esri. Here for maps and cats!
www.richardcaballero.com
thisguymaps (he/him) @thisguymaps.bsky.social 🌎 Local govt GIS dude
👨💻 Currently combing through datasets and models for accuracy
🌱 Plant dad
✨ Work hard. Be nice. Go outside.
michael mcneil @mikusthetiger.bsky.social geographer by day, traveler by night
Christina Shintani @cmshintani.bsky.social Cartographer at Woodwell Climate Research Center | previously National Geographic
www.shintanimaps.com
she/her
Nyall Dawson @nyalldawson.net Open source geo developer (especially QGIS!)
Shwarnali Bhattacharjee @shwarnali.bsky.social Dangermond Fellow at National Audubon Society 🦩🕊️| GIS Enthusiast | Cartographer 🗺️ 🌎
Roman (geographyquiz.app) @geographyquiz.app My name is Roman. Interests: Traveling, History, Economy, Languages (🇩🇪🇬🇧🇺🇲🇳🇱🇵🇱🇨🇳) and I make free map based geography learning games.
📍Frankfurt, Dortmund, Enschede, Cheltenham, Katowice, Jingdezhen
🗺️😎: https://geographyquiz.app/
Patrick Stotz @patrickstotz.bsky.social 💼 Co-lead data & visualizations @spiegel.de
🗺️ Blogging about maps at letsmakeamap.com
#dataviz #ddj #maps #rstats