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Company · Walnut Creek · United States

Brown and Caldwell (United States)

In research, Brown and Caldwell (United States) stands highest in Environmental Science (#4,779 of 6,208 worldwide), Physical Sciences (#16,663 of 21,541 worldwide) and Engineering (#11,007 of 11,412 worldwide), over all time. Relative to its size it is most specialised in Environmental Science — Environmental Science is 10.3× its share of world research.

brownandcaldwell.comROR OpenAlex
World rank, all time
#29,000
of 42,892
Rank in United States
#6,206
of 8,685
Research works
472
▼ 34% vs 2013–17
Citations
4.6k
9.7 per fractional work
Top-10% rate
23.0%
record average 16.5%
Open access
14%
world 28%

What is Brown and Caldwell (United States) known for in research?

The fields where it stands highest, over all time, ranked among every institution above the floor in each field.

FieldWorld rankWhere that sitsTop-10% rateWorks
Environmental ScienceField #4,779 of 6,208 11.3%174
Physical SciencesDomain #16,663 of 21,541 9.8%342
EngineeringField #11,007 of 11,412 7.9%125

Each strip is that field’s whole ranked pool, with the notch where Brown and Caldwell (United States) sits in it, in the colour of the band that rank falls in. The track under the rate is the rate itself: it carries no world mark, because the world rate differs by field (from about 6% to 21% in this record).

What does Brown and Caldwell (United States) specialise in?

Where its research is concentrated relative to its size: Environmental Science takes 10.3× the share of its output that it takes of world research.

  1. Environmental ScienceField · 22.3 works10×
← less than its size predicts1×more →

Location quotient, a volume reading rather than an impact one. It surfaces small, lopsided specialities.

Field profile

Location quotient across every field it publishes in: outside the ring is more than an institution of this size would be expected to publish, inside it is less.

Biochemistry, Genetics and Molecular Biology: 0.27× its world share, 1 worksBiochemistry, Geneti…Chemical Engineering: 4.53× its world share, 1 worksChemical EngineeringChemistry: 0.41× its world share, 0 worksChemistryComputer Science: 0.22× its world share, 1 worksComputer ScienceEarth and Planetary Sciences: 1.55× its world share, 1 worksEarth and Planetary …Energy: 2.14× its world share, 1 worksEnergyEngineering: 1.64× its world share, 11 worksEngineeringEnvironmental Science: 10.35× its world share, 22 worksEnvironmental ScienceMaterials Science: 0.51× its world share, 1 worksMaterials ScienceMathematics: 0.08× its world share, 0 worksMathematicsDentistry: 0.79× its world share, 0 worksDentistryHealth Professions: 0.42× its world share, 0 worksHealth ProfessionsMedicine: 0.34× its world share, 3 worksMedicineNursing: 0.98× its world share, 0 worksNursingBusiness, Management and Accounting: 0.79× its world share, 1 worksBusiness, Management…Decision Sciences: 0.53× its world share, 0 worksDecision SciencesEconomics, Econometrics and Finance: 0.06× its world share, 0 worksEconomics, Econometr…Social Sciences: 0.05× its world share, 0 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Environmental Science, 10.3×. Every wedge is a field page.

Who are the top researchers at Brown and Caldwell (United States)?

Ranked on the composite score, Denny Parker, José Jimenez and Mark W. Miller lead among researchers whose main affiliation is Brown and Caldwell (United States).

  1. 1 Denny Parker United States · #73,308 worldwide 224 citations · 34 works
  2. 2 José Jimenez United States · #631,242 worldwide 63 citations · 31 works
  3. 3 Mark W. Miller United States · #731,777 worldwide 46 citations · 16 works
  4. 4 Mary Carmichael United States · #1,095,192 worldwide 8 citations · 23 works
  5. 5 Henryk Melcer United States · #1,392,855 worldwide 15 citations · 24 works
  6. 6 Perry Schafer United States · #1,435,923 worldwide 9 citations · 33 works
  7. 7 Katherine Y. Bell United States · #1,529,108 worldwide 24 citations · 19 works
All ranked researchers at Brown and Caldwell (United States)

Which keywords describe research at Brown and Caldwell (United States)?

By fractional works in 2022–2025, weighted toward what it does more of than the world: Wastewater Treatment, Health Effects, Water Treatment, Microbial Ecology, Drinking Water, Global Distribution, Disinfection By-Products and Genotoxicity.

▲ more of its work than of the world’s◆ about the world’s share▼ less than the world’s

Size is fractional works in 2022–2025 in the topics tagged with each word; colour is the word's share of this institution's work against its share of the world's. The 40 words are chosen for being large and distinctive. Each links to the topic it comes from most.

All 40 words, with their numbers
  1. Health Effects6▲ 22×7 topics
  2. Wastewater Treatment6▲ 58×5 topics
  3. Water Treatment4▲ 80×3 topics
  4. Drinking Water3▲ 214×2 topics
  5. Microbial Ecology3▲ 43×2 topics
  6. Disinfection By-Products3▲ 335×1 topic
  7. Genotoxicity3▲ 166×1 topic
  8. Global Distribution3▲ 111×2 topics
  9. Anammox Bacteria3▲ 189×1 topic
  10. Nitrogen-Cycling Network3▲ 189×1 topic
  11. Renewable Energy2▲ 3.7×6 topics
  12. Environmental Impact2▲ 3.0×8 topics
  13. Water Quality2▲ 12×5 topics
  14. Control2▲ 35×1 topic
  15. Hydraulic Systems2▲ 79×1 topic
  16. Hydrogen Production2▲ 17×4 topics
  17. Perfluoroalkyl Substances2▲ 258×1 topic
  18. Polyfluoroalkyl Compounds2▲ 258×1 topic
  19. Sustainability2▲ 1.93×7 topics
  20. Recycling2▲ 9.9×3 topics
  21. Waste Management2▲ 9.3×3 topics
  22. Microbial Community2▲ 44×3 topics
  23. Toxicity2▲ 8.0×5 topics
  24. Bioaccumulation1▲ 35×2 topics
  25. Polycyclic Aromatic Hydrocarbons1▲ 56×2 topics
  26. Waste-to-Energy1▲ 42×2 topics
  27. Anaerobic Digestion1▲ 106×1 topic
  28. Biogas Production1▲ 106×1 topic
  29. Defect Detection1▲ 20×2 topics
  30. Environmental Exposure1▲ 27×2 topics
  31. Wastewater1▲ 35×2 topics
  32. Aryl Hydrocarbon Receptor1▲ 71×1 topic
  33. Brominated Flame Retardants1▲ 71×1 topic
  34. Desalination1▲ 43×1 topic
  35. Membrane Technology1▲ 32×1 topic
  36. Microbial Communities1▲ 6.0×5 topics
  37. Arc Fault1▲ 160×1 topic
  38. Crack Detection1▲ 32×1 topic
  39. Detection1▲ 7.8×1 topic
  40. Pavement1▲ 32×1 topic

Which research topics does Brown and Caldwell (United States) publish most on?

By volume in 2022–2025: Water Treatment and Disinfection, Wastewater Treatment and Nitrogen Removal, Per- and polyfluoroalkyl substances research and Hydraulic and Pneumatic Systems.

Water Treatment and Disinfection: 3 fractional worksWastewater Treatment and Nitrogen Removal: 3 fractional worksPer- and polyfluoroalkyl…2Per- and polyfluoroalkyl substances research: 2 fractional worksHydraulic and Pneumatic …2Hydraulic and Pneumatic Systems: 2 fractional worksAnaerobic Digestion and …1Anaerobic Digestion and Biogas Production: 1 fractional worksToxic Organic Pollutants…1Toxic Organic Pollutants Impact: 1 fractional worksMembrane Separation Tech…1Membrane Separation Technologies: 1 fractional worksAdvanced oxidation water treatment: 1 fractional worksInfrastructure Maintenance and Monitoring: 1 fractional worksElectrical Fault Detection and Protection: 1 fractional works
Health, Toxicology and MutagenesisPollutionEnvironmental ChemistryMechanical Engineering4 others

Area is fractional works; colour is the subfield each topic belongs to.

  1. 1 Water Treatment and Disinfection Health, Toxicology and Mutagenesis 3 works
  2. 2 Wastewater Treatment and Nitrogen Removal Pollution 3 works
  3. 3 Per- and polyfluoroalkyl substances research Environmental Chemistry 2 works
  4. 4 Hydraulic and Pneumatic Systems Mechanical Engineering 2 works
  5. 5 Anaerobic Digestion and Biogas Production Building and Construction 1 works
  6. 6 Toxic Organic Pollutants Impact Health, Toxicology and Mutagenesis 1 works
  7. 7 Membrane Separation Technologies Water Science and Technology 1 works
  8. 8 Advanced oxidation water treatment Water Science and Technology 1 works
  9. 9 Infrastructure Maintenance and Monitoring Civil and Structural Engineering 1 works
  10. 10 Electrical Fault Detection and Protection Electrical and Electronic Engineering 1 works

How open and international is its research?

Against the world’s own shares — the tick on each track. Both are shares of its output, so they sit on one scale and can be read against each other as well as against the world.

openly available14.0%not open86.0%

World: 28% of research is openly available.

with international co-authors12.8%domestic only87.2%

World: 19% is written across borders.

How has Brown and Caldwell (United States)'s research output changed?

Output in 2018–2022 was 34% lower than in 2013–2017.

1990200020102020
grewheldshrank

The same series as a ribbon — one cell per year, darker for more. The line above answers how much; this answers when.

Other research institutions in Walnut Creek

All research institutions in Walnut Creek

Research measures only: rankings here say nothing about teaching, admissions or student experience. Comparable institutions and collaboration partners are in the interactive view on the map.