Structural Engineers Association of Northern California

A regional community of structural engineers advancing their craft, building professional fellowship, and teaching the public how buildings stand and stay standing when the ground moves.

  • www.seaonc.org
  • Guild
  • San Francisco, CA
  • Professional and scientific society
  • Read from public sources, Jul 2026
23named by SEANC
157named by peers

Financial profile

Structural Engineers Association of Northern California · EIN 94-1139054 · 501(c)(6)

Fiscal yearTotal revenueContributionsProgram servicesTotal expensesNet assetsYear end
FY2024$548,288$0$463,780$472,315$851,893Jun 2024
FY2023$526,752$271,465$170,893$565,097$754,677Jun 2023
FY2022$511,247$113,135$432,180$518,767$804,419Jun 2022
FY2021$706,531$100,000$480,132$441,272$811,939Jun 2021
FY2020$520,278$0$523,289$486,723$546,680Jun 2020
FY2019$647,261$0$616,585$611,138$513,125Jun 2019

Figures exactly as reported. A blank cell was blank on the form. The fiscal year links to the filing.

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Peer societies

Five societies Structural Engineers Association of Northern California is read alongside.

Who backs SEANC

Every company Structural Engineers Association of Northern California names publicly as a supporter, exactly as published. Companies also named by other associations on Sociogene come first.

CompanySupport as publishedAlso named by
Simpson_Strong-TieCorporate memberACI IACHI ICC NAHB NADRA +1
HiltiCorporate memberAISC AGCA NAWIC SMACC
TT / thorntontomasetti.comCorporate memberAKC BWAF GKCCC
Cast_ConnexCorporate memberAISC ESWP
FYFECorporate memberESWP
HolmesCorporate memberASAE
CSICorporate memberOnly Structural Engineers Association of Northern California, so far
DegenkolbCorporate memberOnly Structural Engineers Association of Northern California, so far
durafuseCorporate memberOnly Structural Engineers Association of Northern California, so far
Forell_ElsesserCorporate memberOnly Structural Engineers Association of Northern California, so far
gfdsCorporate memberOnly Structural Engineers Association of Northern California, so far
GPLACorporate memberOnly Structural Engineers Association of Northern California, so far
KPFFCorporate memberOnly Structural Engineers Association of Northern California, so far
mulhallconstruction.comCorporate memberOnly Structural Engineers Association of Northern California, so far
OLMMCorporate memberOnly Structural Engineers Association of Northern California, so far
paradigmCorporate memberOnly Structural Engineers Association of Northern California, so far
Rinne_PetersonCorporate memberOnly Structural Engineers Association of Northern California, so far
RJSDCorporate memberOnly Structural Engineers Association of Northern California, so far
SGHCorporate memberOnly Structural Engineers Association of Northern California, so far
strandberg_engineeringCorporate memberOnly Structural Engineers Association of Northern California, so far
TrusJoistCorporate memberOnly Structural Engineers Association of Northern California, so far
WJECorporate memberOnly Structural Engineers Association of Northern California, so far
ZFACorporate memberOnly Structural Engineers Association of Northern California, so far
Sources: 1 published list, read September 2026

SEAONC current corporate members. Read September 27, 2026. Corporate membership (Partner with Us) logo wall; names read from logo file names and links. San Francisco DBI (government) left out.

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Who backs Structural Engineers Association of Northern California's peers, but not Structural Engineers Association of Northern California

Companies named publicly by at least one of Structural Engineers Association of Northern California's five peer societies, and not found in Structural Engineers Association of Northern California's reviewed public records.

CompanyESWPRESAWWACPeers
HDR_Logo_4C.pngGoldLake Level2 of 3
Accenture-scaled.pngBronze1 of 3
Acrow Corporation of AmericaNamed1 of 3
AECOM_logo_blk_300dpi.jpgGold1 of 3
AIE-Logo_High-Res_2.23.24.bmp (aiengineers.com)Bronze1 of 3
Anderson UnderBridgeNamed1 of 3
Arcadis-March-2019.jpgGold1 of 3
Arup-Web.pngSilver1 of 3
Avalotis.jpgBronze1 of 3
Barton & Loguidice, Inc.Sustaining Corporate members1 of 3
Beaver-Excavating-Logo.pngBronze1 of 3
Bentley SystemsNamed1 of 3
Bodewell GroupRiver Level1 of 3
Brayman ConstructionAla Carte Sponsors1 of 3
Brown-and-Caldwell-200x100Lake Level1 of 3
Bureau VeritasNamed1 of 3
C&S CompaniesSustaining Corporate members1 of 3
Carollo-200x100Lake Level1 of 3
CDE Engineering and Environment, PLLCSustaining Corporate members1 of 3
CDMSmith_logo_print_RGB_BlueGr-01.pngBronze1 of 3
CDR-Maguire-Engineering_colors_main-logo.pngGold1 of 3
Cla ValveRiver Level1 of 3
Clark Patterson LeeSustaining Corporate members1 of 3
CMCNamed1 of 3
collectiveefforts.pngBronze1 of 3
Colliers Engineering & DesignEnterprise Corporate members1 of 3
Collins Engineers, Inc.Named1 of 3
Computers and Structures, Inc.Named1 of 3
ConeLabsNamed1 of 3
Control Point Associates Inc.Named1 of 3
COWINamed1 of 3
CTS Cement ManufacturingNamed1 of 3
D.S. BrownNamed1 of 3
Day Engineering, PCSustaining Corporate members1 of 3
DBM VirconNamed1 of 3
Delve-Identity_color-cmyk_final_v1.pngBronze1 of 3
Diamant Polymers Inc.Named1 of 3
DLZ-Logo.jpgSilver1 of 3
duquesnelight.pngGold1 of 3
DYWIDAGNamed1 of 3
Earth Wall Products LLCNamed1 of 3
Eastern Pneumatics & Hydraulics Inc.Named1 of 3
Echem Consultants LLC / Duricorr LLCNamed1 of 3
Echem Consultants LLC / Duricorr LLCNamed1 of 3
Electrostatic AnswersSustaining Corporate members1 of 3
Erdman Anthony & AssociatesSustaining Corporate members1 of 3
Eriksson SoftwareSilver1 of 3
Fisher AssociatesSustaining Corporate members1 of 3
Fraco ProductsNamed1 of 3
Freyer & LauretaRiver Level1 of 3
Freyssinet, Inc.Named1 of 3
Geoquest USANamed1 of 3
Geosyntec_Logo-COLOR-tagline.jpgGold1 of 3
GFT_logo_DARK.pngGold1 of 3
ghd.pngBronze1 of 3
goettle_fullmark_horizontal.pngBronze1 of 3
GPI_RGB.pngGold1 of 3
Greenman-Pedersen, Inc. (GPI)Ala Carte Sponsors1 of 3
GWY, LLCAla Carte Sponsors1 of 3
H.F.Lenz_Primary-FullColor.jpgBronze1 of 3
H&HAla Carte Sponsors1 of 3
Haley & AldrichSustaining Corporate members1 of 3
Hatch-Web.jpgGold1 of 3
hazen-200x50Lake Level1 of 3
hntb-logo-color.pngSilver1 of 3
Hoch ConsultingRiver Level1 of 3
HRC – Headed Reinforcement CorpNamed1 of 3
Hunt Engineers, Architects & Land Surveyors, P.C.Sustaining Corporate members1 of 3
Hydro -Technologies / Modified Concrete SuppliersNamed1 of 3
Hydro -Technologies / Modified Concrete SuppliersNamed1 of 3
IBC Engineers, Innovators, and PartnersChampion Corporate members1 of 3
ICE-logo-2020-04-4-Web.png (iceusa.com)Gold1 of 3
Infrasense Inc.Named1 of 3
Jakob, Inc.Ala Carte Sponsors1 of 3
JMT.pngBronze1 of 3
JNE-Consulting-Logo_JN_81023.jpgBronze1 of 3
Joseph C. Lu Engineering, PC (dba Lu Engineers)Sustaining Corporate members1 of 3
KCI_Technologies_Standard_Web-e1481307882317.jpgBronze1 of 3
Kistler Instrument CorporationNamed1 of 3
Klaas Coatings North America LLCNamed1 of 3
Kokosing.jpgBronze1 of 3
koryak.jpgBronze1 of 3
KTA150x45.pngSilver1 of 3
L3HarrisEnterprise Corporate members1 of 3
LARSA, Inc.Named1 of 3
LeJeune Bolt CompanyNamed1 of 3
Lochner-1.pngBronze1 of 3
LUSASNamed1 of 3
M.E. Simpson Co.,INCOcean Level1 of 3
Mapei CorporationNamed1 of 3
Marcon Metal USANamed1 of 3
Mascaro-Logo-Color-JPG.jpgBronze1 of 3
McClain & Co., Inc.Named1 of 3
McDonough Marine ServiceNamed1 of 3
mckim_creed_logo-1.jpgBronze1 of 3
Menard.jpgBronze1 of 3
Michael_Baker_International_logo-300x90.jpgGold1 of 3
Mim-Logo-RGB-Light-web2.png (mimmuhendislik.com.tr)Silver1 of 3
Modjeski-Web.pngBronze1 of 3
Mott-MacDonald-Logo-Black-Greyscale-600px.jpgBronze1 of 3
MSE North AmericaNamed1 of 3
MSG_Logo-Mannik-Smith.pngBronze1 of 3
MST RebarNamed1 of 3
Nassau Industrial SupplyNamed1 of 3
Navigating Preparedness Associates, LLCRiver Level1 of 3
Neenah FoundryNamed1 of 3
New MillenniumNamed1 of 3
Nucor SkylineNamed1 of 3
OEC-Primary_Stacked-Logo-osborn-scaled.jpgBronze1 of 3
OpenBrIM PlatformNamed1 of 3
Passero AssociatesEnterprise Corporate members1 of 3
PennoniNamed1 of 3
Perryman CompanyNamed1 of 3
PJ-DickAll-color.jpgSilver1 of 3
PolyvantisNamed1 of 3
Popli Design GroupChampion Corporate members1 of 3
Proto X-ray DiffractionNamed1 of 3
RBC BearingsNamed1 of 3
Re:Build Optimation Technology, LLC.Sustaining Corporate members1 of 3
Resensys LLCNamed1 of 3
RIZZO-INTERNATIONAL-01-01.pngBronze1 of 3
RJ-Watson-Logo.pngBronze1 of 3
Roads & BridgesNamed1 of 3
RSRS-200x145Ocean Level1 of 3
RWDINamed1 of 3
Scarbrough GlobalNamed1 of 3
SciTekLogo-Web.jpgBronze1 of 3
Scougal Rubber Corp.Named1 of 3
SensequakeNamed1 of 3
SheesleyAssociates_logo-SMPS-scaled.jpgBronze1 of 3
Sika Corporation *Named1 of 3
Sixense, Inc.Named1 of 3
Sky Climber Services, LLCNamed1 of 3
Spanweld BridgesNamed1 of 3
St. Louis Screw and Bolt/ Haydon BoltsNamed1 of 3
St. Louis Screw and Bolt/ Haydon BoltsNamed1 of 3
Stantec-Logo-Color-RGB.jpgBronze1 of 3
stv.pngBronze1 of 3
SWBRSustaining Corporate members1 of 3
Taylor Devices, Inc.Named1 of 3
tetratech-50th.jpgBronze1 of 3
the_markosky_engineering_group_inc__logo-1.jpgBronze1 of 3
Tourney Consulting GroupNamed1 of 3
TPD-web.pngBronze1 of 3
Trumbull CorporationAla Carte Sponsors1 of 3
TYLin_Logo-1.jpgSilver1 of 3
Urban-Logo-Excellence-blue-299-Pantone-1024x260.jpgBronze1 of 3
V&S GalvanizingNamed1 of 3
Valmont CoatingsNamed1 of 3
Vector Corrosion Technologies *Ala Carte Sponsors1 of 3
Viathor, Inc.Named1 of 3
VSL Civil ConstructionNamed1 of 3
wade-trim-logo.jpgSilver1 of 3
westinghouse.pngBronze1 of 3
WireCoNamed1 of 3
wsp_4C.jpgBronze1 of 3
Xylem-200x100Lake Level1 of 3

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The outside view

A regional community of structural engineers advancing their craft, building professional fellowship, and teaching the public how buildings stand and stay standing when the ground moves.

  • Consensus
  • Build
  • Outward
  • Volunteer

Their shape

The Guild

Where mastery is the price of belonging.

The Guild is the keeper of a craft and its standards, where belonging means meeting a real bar. Its gift is depth and trusted expertise, its challenge is opening up to newcomers and new ways.

Also reads toward The Citadel and The Republic.

Strengths

→Deep loyalty and a strong sense of belonging.
→Standards and credentials carry real weight.
→Expertise and trusted credential in the field.

Not an official page of Structural Engineers Association of Northern California. Sociogene does not consult. Everything here comes from public sources, dated and linked. Something wrong here? Tell us what we missed.