James Milner @jameslmilner.com Staff Engineer, open source fan, hacking on geospatial in my spare time. Lives in London
Harald Tryti Rieber @haraldtr.bsky.social Taking web-gis from 1990 -> 2024 ๐บ๏ธ co-founder & cto @ atlas.co ๐
Sebastian Lammers @sebastianlammers.com Creative Technologist | Data Visualization Designer & Developer | Researcher.
Building websites at nussknagger.com
Always learning something new. (he/him)
https://sebastianlammers.com/
Joshua S Campbell @disruptivegeo.bsky.social Geographer and geospatial technologist. Owner of Sand Hill Geographic and Board member of the American Geographical Society. KU PhD. 
Robert Gieseke (Openclimatedata) @openclimatedata.net https://openclimatedata.net/
Jon Froehlich @jonfroehlich.bsky.social ๐ HCI Professor, UW CS
๐ ๏ธ Director, makeabilitylab.cs.washington.edu
โฟ๏ธ Co-founder, projectsidewalk.org
๐ค Visiting Researcher, Google Research
Alex @mojoaxel.bsky.social Softwareker | aggressiv progressiv | CC-BY-SA | de, en
jpole1 @jpole1.bsky.social Husband, dad, slow trail runner
Jean-Marc Viglino @jmviglino.bsky.social ๐๐งญ Ingรฉnieur @IGNFrance | ๐ง#developers | #OpenData #lool | #Macarte #logicielsIGN #mobile ๐ฑ#MobilisInMobile #GeoCommuns๐ก
Github ๐ฑ๏ธ https://github.com/Viglino
Elai @elai.bsky.social Water engineer, cyclist, walker, talker, weirdo.
A better world is possible
๐ญ๐บ๐ท๐บ๐ธ๐ฐ๐ต๐ธ๐ฎ๐ฑ๐ช๐น๐ช๐ธ๐ฒ๐ฆ๐ฆ๐ท๐ฒ๐ฝ๐ฌ๐ง๐บ๐ฒ
Henry Wilkinson @wilkinson.graphics Designer who knows some things about web archives, OpenStreetMap enthusiast, occasional maker of music.
Prev @webrecorder.net Currently @EQTY Lab
Puzzmo @puzzmo.com puzzles that love you back
a zach gage and orta therox joint
www.puzzmo.com
Vitor George @vgeorge.bsky.social 
flatearthmapper @flatearthmapper.bsky.social you don't know
@globearthmapper on twt
Mike O'Brien @obrien.page Full-stack fish ecologist. Richmond, VA culture leech living in Eastern Henrico. Small farm dabbler.
https://obrien.page
https://github.com/mhpob
MapRVA @maprva.org Mappy Hours in Richmond, Virginia.
You can also find us in local-rva on the OSM US Slack.
๐ bridged from โ https://en.osm.town/@maprva, follow @ap.brid.gy to interact
Niklas Jordan @niklasjordan.com Geologist, working on safer communities.
๐ฅ #ClimateRisks, #NaturalHazards & #DRR
๐ #FloodRisk Management
๐ฐ๏ธ #EarthObservation & #GIS
โ ๏ธ #RiskComm
๐จ Volunteer in Danish Emergency Service ( #GreySky )
Also in ๐, โต๏ธ, ๐ and ๐จโ๐พ. ๐ฉ๐ช in ๐ฉ๐ฐ.
๐ niklasjordan.com
Martin Fleischmann @martinfleischmann.net Researcher. Cities, urban morphology, human geography & spatial data science. Open source software developer. #python #cities #open_science
https://martinfleischmann.net
TrailStash (Daniel Schep) @trailsta.sh Maps and Mappy Software by @dschep.mastodon.social.ap.brid.gy
โจ All Projects - https://trailstash.net
๐ Ultra - https://overpass-ultra.us
๐บ๏ธ OpenTrailStash - https://open.trailsta.sh
๐ MapSwap - https://mapswap.trailsta.sh
geomad @geomad.bsky.social sql-lover, geospatial developer and geobase.app founder
Maurizio Napolitano @napotn.bsky.social during the day: head of the unit digital commons lab in FBK
evening and weekend: volleyball coach
karma: opendata opensource openstreetmap
born civic hacker
Jakub M. @iliekmudkip.bsky.social Chicagoan, Information Technologist in catastrophe modeling (previously bioprocess), loves cities, public transit, & bicycles. OpenStreetMap contributor. (he/him)
Rachel Neugarten @rachelneugarten.bsky.social Executive Director, Conservation Planning at WCS. Informing conservation practice through scientific research. Mapping ecosystem services. Evaluating impacts of conservation on biodiversity and people. Rambling through the woods. Posts are my own.
Jess Bier @bierjess.bsky.social Professor at large
PI: DIGIPORTS project, automation + racialization in maritime logistics
Author: Mapping Israel, Mapping Palestine: How Occupied Landscapes Shape Scientific Knowledge
Pro ๐ โง๏ธ๐ ๐ดโโ ๏ธ
Neil Kaye @neilrkaye.bsky.social Climate data scientist @metoffice specialising in generating interactive websites and bespoke #dataviz. #climate #maps #GIS #mapping #Rstats
Views are my own
Sara Caputo @saracaputo.bsky.social History Assistant Prof. & Director of Studies at Magdalene College, University of Cambridge. Histories of maritime labour, mapping, and medicine (Britain, France, Spain, & Italy).
https://www.hist.cam.ac.uk/people/dr-sara-caputo
Lukas Engelmann @engelmal.bsky.social Chancellor's Fellow at Uni of Edinburgh (STIS & CBSS)
Author of 'Mapping AIDS' (CUP), co-author of 'Sulphuric Utopias' (MIT)
PI at the Epidemy Lab (ERC): http://epidemy.org 
Marcy Bidney @maplibrarian.bsky.social AUL - Distinctive Collections, University of Chicago
Always on my mind: distinctive collections, cultural heritage, repatriation, digital humanities, memory, rare maps & books, coffee, nature, travel and curiosity.
UofA Map/GIS Librarian @wyman10.bsky.social William C. Wonders Map Collection, University of Alberta Library. Curation by Wyman Lalibertรฉ (he/him) (settler on Treaty 6 land).
WCW Map Collection on Internet Archive
https://archive.org/details/wcw
#spatial #maps #cartography #gis #qgis
The Nature Conservancy in the Caribbean @nature-caribbean.bsky.social Safeguarding our lands and waters for generations to come.
The Nature Conservancy Science @science.nature.org @nature.org's science network working to optimize science and help TNC advance towards the 2030 goals.
The Nature Conservancy @nature.org Together, we can create a world where people and nature thrive. ๐๐ Subscribe for real-world solutions to our planetโs biggest challenges: nature.ly/GlobalInsights
NYC DOT @nyc-dot.bsky.social Official Bluesky of the NYC Department of Transportation. Call 911 for emergencies & NYC 311 for non-emergencies. Not monitored. Occasionally out of pocket.
ian spangler @itspangler.bsky.social your ragged, dirty, smudged, torn, defiled, effaced, dog-eared, coverless, undated, anonymous, unprinted, poxed, bedraggled, battered https://itspangler.com
Wikipedia PotD Context @potd-context.bsky.social ๐ค sibling account for @wiki-potd.bsky.social
posting links and context for the daily picture from Wikipedia, plus the occasional comment & reskeet.
Maintained by @drezner.xyz
See how I work at: github.com/ndrezn/wikipedia-pic-of-the-day/
Wikimedia LGBT+ @wmlgbt.org Wikimedia LGBT+ is a global, intersectional Wikimedia user group. We improve the quality and coverage of LGBT+ history on Wikipedia and Wikimedia projects. ๐ณ๏ธโ๐๐ณ๏ธโโง๏ธ https://meta.wikimedia.org/wiki/Queering_Wiki_2026/Registration
Wikipedia @wikipedia.org A free, collaborative, multilingual internet encyclopedia.
donate.wikipedia25.org
maybe: annie rauwerda @annierau.bsky.social more fun on depths of wikipedia @depthsofwikipedia.bsky.social
depths of wikipedia @depthsofwikipedia.bsky.social hi i'm @annierau.bsky.social i love wikipedia! dm submissions if you want :-)
Wikimedia Foundation @wikimediafoundation.org We are the nonprofit organization that hosts Wikipedia and other free knowledge projects. Working to create a world where every human can freely share in the sum of all knowledge.
donate.wikimedia.org
American Rivers @americanrivers.bsky.social Championing a movement to protect and restore the rivers on which we all depend. Learn more โ๏ธ www.americanrivers.org
Maryland Transit Administration @mta.maryland.gov This is the official page of the Maryland Department of Transportation's Maryland Transit Administration (MTA), a state-operated public transportation agency.
MTA Metro-North Railroad @mtametronorth.bsky.social The official Bluesky page of the MTA Metro-North.
Purchase tickets, plan your trip, and chat with us: http://new.mta.info/traintime
Sign up for real-time service: http://mta.info/notify
Metropolitan Transportation Authority @mta.info Visit mta.info for service information.
Download our official apps for real-time customer care: mta.info/apps
MBTA @mbta.com The official Bluesky account of the Massachusetts Bay Transportation Authority (MBTA)
mbta.com
Clarence Eckerson Jr./Streetfilms @streetfilms.bsky.social The OG Urbanist Youtuber! Prolific Streets Documentarian since late 1990s. All good things: biking, walking, transit, open streets & LTNs! Visit www.streetfilms.org for more!
All tweets only represent my personal point of view.
5th Square Advocacy @5thsqadvocacy.org Grassroots urbanist organizers working towards a more accessible, sustainable, and equitable Philadelphia.
Weekly Newsletter: https://www.5thsqadvocacy.org/subscribe
Mike Bulthuis @mikebulthuis.bsky.social ๐Home is Ottawa, Hamilton-born | affordable housing, community ownership, land trusts | Ottawa Community Land Trust | Bouviers | always better after time spent on trails. ๐โโ๏ธ | ๐จ๐ฆ๐ณ๐ฑ๐ณ๏ธโ๐
World Land Trust @worldlandtrust.org ๐ Funding partner organisations around the world since 1989.
๐ฑ Protecting the worldโs most threatened habitats, acre by acre.
https://www.worldlandtrust.org
Scottish Wildlife Trust @scotwildlife.bsky.social Protecting wildlife and restoring ecosystems across Scotland's land and seas.
https://scottishwildlifetrust.org.uk/
#WordsOfTheWild
Greenways Land Trust @greenwayslandtrust.bsky.social ๐ธ Conservation, Restoration, Education, Outreach, & Food Security.
๐Campbell River, BC, on the traditional territories of the Ligฬสทiษซdaxฬสท peoples.
๐ท๏ธ www.greenwaystrust.ca
Nova Scotia Nature Trust @nsnaturetrust.bsky.social Protecting Nova Scotia's most special wild places & ensuring a home for imperilled species - forever. | Land conservation | Biodiversity | Nature-based solutions. linktr.ee/nsnaturetrust
Alt National Park Service @altnps.bsky.social The official "Resistance" team of U.S. National Park Service. Our website: www.ourparks.org
GitHub @github.com The AI-powered developer platform to build, scale, and deliver secure software.
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. Dominic Royรฉ @drxeo.eu -Mapping the world- Dr. in Physical Geography | environmental health - bioclimatology - geography. RC Researcher from ๐ฉ๐ช at @mbgcsic.bsky.social @csic.es in ๐ช๐ธ #rstats #dataviz
Secretary of the @aeclim.org
๐Galicia
โน๏ธ https://dominicroye.github.io
Steven Romalewski @sromalewski.bsky.social Director, CUNY Mapping Service at the Center for Urban Research, CUNY Graduate Center. More here: https://www.gc.cuny.edu/people/steven-romalewski Some posts are work-related, some are personal.
Photo credit: Alex Irklievski
Agroecology Map @agroecologymap.bsky.social #Agroecology Map aims to assist in the #mapping of experiences with the goal of bringing people together to strengthen or create #collaborative networks that enhance the sharing of experiences in agroecology. https://agroecologymap.org/ ๐ฑ ๐ ๐
Kenneth Field @kennethfield.bsky.social Cartography is my passion & profession. Author of CARTOGRAPHY. & THEMATIC MAPPING. Maps+drums+beer+snowboards+footy+politics+sarcasm. ๐ฌ๐ง in ๐บ๐ธ Views mine. links.esri.com/mappyhour
MapQuest @mapquest.com The OG of online mapping.
Get the app on Android and iOS: lnk.bio/MapQuest
Joe Morrison @joemorrison.bsky.social โControversial industry figureโ - Grid News. VP of Commercial Experience at Umbra Space. ๐ฐ | satellite data for mapping ๐บ, monitoring ๐, and 'mergencies ๐จ
Mapmaker @mapmakerdavid.bsky.social mapia boss
OpenStreetMap @openstreetmap.bsky.social The official Bluesky account of the OpenStreetMap foundation 
Christopher Beddow @cbed.bsky.social I work on Mapillary, OpenStreetMap, Overture, computational geometry, spatial computing, GIS, and maps at Meta Reality Labs.
๐บ๐ธ living in ๐จ๐ญ
Blog: https://worldbuilder.substack.com
#openstreetmap #geospatial #switzerland #ski #maps #data
The Map Room @maproomblog.com A blog by @jonathancrowe.net about maps in all their forms, on and off since 2003. maproomblog.com
Email digest: maproomblog.com/about/subscribe
Mastodon: mapstodon.space/@maproomblog
Support via Patreon: patreon.com/jonathancrowe
Kiri Carini @kiricarini.com Geospatial Communicator.
Data + Stories for @developmentseed.org
@osmus.bsky.social Board Member
Hiking shenanigans. Desert dweller.
Eddie Pickle @eddiepickle.bsky.social Geography. Tech. Open Source. FedGeoDay!
Ian Schuler @ianschuler.bsky.social CEO @developmentseed.org
Still a big fan of Freedom, but not in a shitty way
Open Source San Josรฉ @opensourcesanjose.sfba.social.ap.brid.gy Uniting volunteer coders, designers, researchers, community members, and more in solving local issues since 2014. Formerly known as Code for San Josรฉ [โฆ]
[bridged from https://sfba.social/@opensourcesanjose on the fediverse by https://fed.brid.gy/ ]
Andrew Middleton @mapcenter.com 'Peddler of Wheres,' job creator, Owner at The Map Center in Pawtucket RI- it's like a hip record store but for maps.
www.mapcenter.com
Cartographer, GIS specialist and educator
Linktr.ee/ecoandrewtrc
MapLibre @maplibre.org 
TreeMamaSEA @treemamasea.bsky.social I'm not afraid to throw down some shade.
Backyard Nature & Science (Non-profit, 501c3) @ http://treemama.org
http://mapstodon.space/@treemamaSEA
HeiGIT @heigit.org Open-source geoinformation, methods and software for the benefit of the environment and society.
---
This is the official account of HeiGIT (Heidelberg Institute for Geoinformation Technology) at Heidelberg University.
Check us out at https://heigit.org/
OpenTrailMap @opentrailmap.bsky.social https://opentrailmap.us
Field Papers @fieldpapers.bsky.social https://fieldpapers.org
Randal Hale @rjhale1971.bsky.social Testing the waters.
Geospatial Professional Network @gpn-org.bsky.social The Geospatial Professional Network (formerly URISA) is a vibrant community uniting emerging and experienced GIS professionals through top-tier education, networking, and career development. Learn more: geospatialprofessionalnetwork.org
OpenHistoricalMap @openhistoricalmap.org Explore the world throughout time, mapped in minute detail by people like you & dedicated to the public domain. OHM is a charter project of @osmus.bsky.social and cousin of @openstreetmap.bsky.social. #oldmaps #dh #hgis
https://www.openhistoricalmap.org
Gregory Power @gregorywpower.bsky.social My opinions are my own and not of my employer.
ISO-8601, Apache Arrow, and neovim enjoyer.
they/them
YouthMappers UFRJ @youthmappers-ufrj.bsky.social OpenStreetMap mappers group at the Federal University of Rio de Janeiro (Brazil)- G Clifford Snow @glassman.bsky.social OpenStreetMap contributor and former glass artist
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
OpenStreetMap Slovenia @openstreetmap.si Local #OpenStreetMap news & map uses in Slovenia
Novice in uporabe zemljevida OpenStreetMap v Sloveniji
http://openstreetmap.si
OpenStreetMap UA @osmua.bsky.social ะฃะบัะฐัะฝััะบะฐ ัะฟัะปัะฝะพัะฐ ะผัะถะฝะฐัะพะดะฝะพะณะพ ะฟัะพัะบัั OpenStreetMap
https://openstreetmap.org.ua/
Stamen Design @stamen.com We are a data visualization and cartography studio with over 20 years of experience helping people find and tell more beautiful stories with data. Learn more at stamen.com
Mastodon: vis.social/@stamen
StreetComplete News & Support @streetcomplete.bsky.social OpenStreetMap surveyor app for Android | inofficial account | managed by RubenKelevra.bsky.social
Website: https://github.com/streetcomplete/StreetComplete
Isaac Castillo @isaac-outcomes.bsky.social Senior Advisor - Learning and #Evaluation at KABOOM!
Past President of Eastern Evaluation and Research Society (EERS).
Lives in Hyattsville, MD. Born in El Paso, TX. Syracuse alumni.
Moriarty Maps @moriartymaps.com Cartography and graphics @postgraphics.bsky.social | Big ol' fan of @wfmu.bsky.social
https://moriartymaps.com/
Levente Juhasz @ljuhasz.bsky.social Assistant Professor of Geospatial Analytics | gatorlab.io | @osmus.bsky.social Board Member | Flawed human | #GIScience | #spatial | #data
@osm-colombia.bsky.social @osm-colombia.bsky.social 
Leventhal Map & Education Center @bplmaps.bsky.social We use maps, geography, and history to understand the connection between people and places in Boston, New England, and beyond.
linktr.ee/bplmaps
New Jersey Geographic Information Network @njgin.nj.gov Facilitating the sharing of geospatial content in the New Jersey GIS community.
Managed by the New Jersey Office of GIS.
Follow @njgf.nj.gov for New Jersey Geospatial Forum news.
https://njgin.nj.gov
Andrรฉ @wellerli.com Open-source enthusiast โข Mapping with #OpenStreetMap โข Building games & apps โข #Laravel + #Vue forever โข volunteer & career #firefighter
Current projects
leitstelle.io
uselinked.com
schichtbuddy.com
weeklyOSM @weeklyosm.bsky.social weeklyOSM - news from the #OpenStreetMap world in a lot of languages https://weeklyosm.eu
Mastodon: @weeklyosm@en.osm.town
submit news: http://osmbc.openstreetmap.de
howto submit news: http://bit.ly/3Dc2J10
weeklyOSM is operated by: https://t1p.de/gor0
Eugene Alvin Villar @seav4f.bsky.social digital crafter (coder, cartographer, graphic designer, tech writer) โช๏ธ open data/knowledge advocate ( #OpenStreetMap, #Wikimedia, #Wikidata) โช๏ธ Oxfordian commaist โช๏ธ ๐ต๐ญ โช๏ธ he/him ๐ณ๏ธโ๐
primary microblog: https://en.osm.town/@seav (Mastodon)
Humanitarian OpenStreetMap Team @hotosm.org Official account for the Humanitarian OpenStreetMap Team. We use open geospatial data and tech for humanitarian response and community-led development. Find all our key resources and links at https://linktr.ee/hotosm
Andygol ๐ป @andygol.bsky.social ะ ะพะทะฟะพะฒัะดะฐั ะทะฐ OpenStreetMap ๐บ๏ธ
Translator of Istio.io, Helm, Kubernetes, OTel and others docs into Ukrainian.
Denise McKenzie @denisemckenzie.bsky.social Consultant | NED | Co-author @locuscharter | Boards - PLACE Trust @thisisPLACE, Association for Geographic Information @geocommunity | Advisory boards @OpenUK @geospatialwomen #Data4Good #EthicalData aka #spatialred https://x.com/SpatialRed
Sajjad Anwar @geohacker.in Maps. Coffee. Engineering & Growth
@developmentseed.org. Previously @Mapbox.com.
๐Bangalore, India
State of the Map US @stateofthemapus.bsky.social State of the Map US is the largest gathering of OpenStreetMap community members from across the country. And this year we're meeting in Madison, Wisconsin, June 11 - 13th.
https://openstreetmap.us/events/state-of-the-map-us/2026/