Radar · Building Materials in California
Best Building Materials Companies in California, United States
The 290 best Building Materials companies in California, United States in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: Conexwest.
By Rohit KhannaTrends & Stories
290companies tracked
$79.9Mdisclosed funding
0unicorns
17have raised
FLIAR INTELLIGENCE · BUILDING MATERIALS × CALIFORNIA
Our analysis of 50 Building Materials companies
$17.1b in tracked funding; 82% of the stack-profiled cohort runs cloud-native; funding activity peaked in 2025.
50companies analysed
82%cloud-native stacks
2025funding peak (by rounds)
1unicorns
2002median founding year
140kcombined LinkedIn audience
35%of audience held by top 3
2companies hiring publicly (12 mo)
Ranked: Best Building Materials companies in California
| # | Company | Disclosed funding | Last round | Stage | Employees | Founded | Tech stack | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|
| 1 | ALAMILLO REBAR Manufacturer of concrete steel rods, rebars, and other products | $10M | — | Funding Raised | 249 | 2006 | — | — | — |
| 2 | A Shade Above Manufacturer of window shades & coverings | — | — | Acquired | — | 2010 | — | — | — |
| 3 | ab&i foundry AB&I Foundry specializes in the manufacturing and supplies of cast iron soil pipes and fittings for DWV… | — | — | Acquired | 73 | 1906 | YouTubeApache HTTP ServerAmazon Web Services+8 | 244 patents Medical devices for vascular interventions, clot removal, valve replacement, and drug delivery | 1 launch |
| 4 | absolute aluminum Absolute Aluminum is an aluminum specialty company that provides pool enclosures, screen rooms, screened… | — | — | Private | 70 | 1988 | WordPressApple iCloud MailMySQL+30 | — | — |
| 5 | Action Plumbing Supply Supplier of plumbing products | — | — | Acquired | 49 | 2016 | — | — | — |
| 6 | alameda pipe and supply Alameda Pipe & Supply is a construction, environmental and pipeline company. | — | — | Acquired | 6 | 1935 | — | — | — |
| 7 | All Weather Insulated Panels Insulated metal panels and roof deck solutions innovator | — | — | Unfunded | 121 | 2007 | WordPressMySQLPHP+21 | — | 1 award |
| 8 | all-coast forest products All-Coast Forest Products is a wholesale manufacturer and distributor of lumber products and building… | — | — | Private | 17 | 1975 | — | — | — |
Top 12 Building Materials companies in California
#1
Series A · Carlsbad, California · founded 2023$10.2Mraised▾
Series A · Carlsbad, California · founded 2023
Manufacturer of quartz slabs. It offers slabs for use as countertop and tile materials.
Fliar Intelligence Index™ 24how this company ranks against its industry peers
Funding
top 29%Talent
bottom 49%Global
bottom 34%Tech
bottom 25%Funding: Raised $10.2M across 2 rounds · 2 rounds over 2 yrs (1.0/yr) · Last round Series A (Jun 2025)
Talent: 1 named leader on record · 1 C-suite/founder profile curated
Global: Single-market focus (United States)
Funding rounds
- Jun 2025Series A$5.2M
- Jan 2024Series A$5M
Founders & team
#2
Funding Raised · Oakland, California · founded 2014 · 48 employees$30Mraised▾
Funding Raised · Oakland, California · founded 2014 · 48 employees
Fliar Intelligence Index™ 64how this company ranks against its industry peers
Tech
top 25%Funding
top 27%Growth
top 35%Market
bottom 36%Global
bottom 33%Tech: 45 technologies across 6/8 capability areas · Cloud: Amazon S3, Amazon Web Services · Devops: Nginx
Funding: Raised $30.0M across 1 rounds · 1 rounds over 1 yrs (1.0/yr) · Last round Conventional Debt (Feb 2025)
Growth: Fresh capital in last 24 mo
Audience (LinkedIn): 7k LinkedIn followers — 5.1% of this cohort's audience
Activity (LinkedIn): 1 partnerships (incl. Locus Ingka Group) announced in 12 mo
Funding rounds
- Feb 2025Conventional Debt$30M
Investors
CIT
Tech stack
Amazon S3Amazon Web ServicesAwinBootstrapCart FunctionalityClickcease
#3
Series A · Livermore, California · founded 2002 · 20 employees$10.5Mraised▾
Series A · Livermore, California · founded 2002 · 20 employees
Manufacturer of luxury bathroom cabinets
Fliar Intelligence Index™ 37how this company ranks against its industry peers
Tech
top 38%Product
top 41%Funding
top 43%Growth
top 45%Moat
top 45%Innovation
top 48%Tech: 30 technologies across 5/8 capability areas · Cloud: Cloudflare · Observability: Microsoft Clarity
Product: 3 distinct product lines · Company stage: Series A
Funding: Raised $10.5M across 2 rounds · 2 rounds over 7 yrs (0.3/yr) · Last round Series A (Apr 2023)
Audience (LinkedIn): 5k LinkedIn followers — 3.6% of this cohort's audience
Funding rounds
- Apr 2023Series A$10.5M
- Jul 2019Conventional Debt$800K
Founders & team
Investors
Celtic House Asia Partners, AME Cloud Ventures
Tech stack
Apache Http ServerBootstrapCloudflareCloudflare Bot ManagementCore-JsFacebook Pixel
#4
Series A · San Jose, California · founded 2023$3.3Mraised▾
Series A · San Jose, California · founded 2023
ClimateCrete is a US-based startup that focuses on converting previously unusable local sand into a sustainable new aggregate for concrete manufacturing. The company aims to revolutionize concrete production and reduce CO2 emissions by utilizing their technology to modify the structure of sand.
Fliar Intelligence Index™ 13how this company ranks against its industry peers
Talent
top 23%Funding
bottom 46%Moat
bottom 42%Patents
bottom 39%Global
bottom 36%Innovation
bottom 4%Talent: 5 named leaders on record · 5 C-suite/founder profiles curated
Funding: Raised $3.3M across 1 rounds · 1 rounds over 3 yrs (0.3/yr) · Last round Series A (Oct 2023)
Moat: Editorial + unicorn rating 1/10 · IP moat: 2 patents
Funding rounds
- Oct 2023Series A$3.3M
Founders & team
Investors
King Abdullah University of Science and Technology
#5
Funding Raised · Benicia, California · founded 2006 · 249 employees$10Mraised▾
Funding Raised · Benicia, California · founded 2006 · 249 employees
Manufacturer of steel bars and provider of concrete reinforcement services. The company specializes in furnishing and installing concrete reinforcing steel for both the public and private sectors.
Funding rounds
- Conventional Debt$10M
Founders & team
Tech stack
WordpressMysqlPhpGoogle MapsTwenty FourteenWp Google Map Plugin
#6
Late Stage · San Francisco, California · founded 1986 · 232 employees$2Mraised▾
Late Stage · San Francisco, California · founded 1986 · 232 employees
Manufacturer of made-to-order tiles
LinkedIn Pulse recent public activity · Jul 2026
Audience: 10k LinkedIn followers — 7.3% of this cohort's audience
Hiring: 3 hiring posts in 12 mo (public) · momentum +3 · hiring: Part-Time Showroom Assistant, Foot Marble
Funding rounds
- Oct 2021PE—
- Aug 2017Conventional Debt$1M
- Nov 2013Unattributed$2M
Founders & team
Investors
Provenance, This is Water, Graph Ventures, White Road Investments, CFT Capital Partners
Tech stack
Amazon S3Amazon Web ServicesApple Icloud MailApple PayCart FunctionalityCloudflare
#7
Early Stage · Willows, California · founded 1997 · 43 employees$8.2Mraised▾
Early Stage · Willows, California · founded 1997 · 43 employees
Manufacturer of medium density fiberboard to building products industry
Funding rounds
- Jan 2013Conventional Debt—
- Jan 2013Unattributed$3.4M
- Jan 2007Unattributed$4.9M
- Jan 2007Conventional Debt—
#8
Acquired · Anaheim, California · founded 1989 · 66 employees$725Kraised▾
Acquired · Anaheim, California · founded 1989 · 66 employees
Manufacturer of doors
LinkedIn Pulse recent public activity · Jul 2026
Audience: 2k LinkedIn followers
Funding rounds
- Jul 2022Unattributed$725K
Tech stack
Apache Http ServerApple Icloud MailFacebook PixelGodaddyGoogle Font ApiGoogle Tag Manager
#9
Acquired · Sacramento, California · founded 1985 · 847 employees$3.7Mraised▾
Acquired · Sacramento, California · founded 1985 · 847 employees
Manufacturer of glass, wood, fiber & architectural doors, windows, and frames
LinkedIn Pulse recent public activity · Jul 2026
Audience: 4k LinkedIn followers — 2.6% of this cohort's audience
Activity: 1 awards announced in 12 mo
Funding rounds
- Sep 2011Grant (prize money)$1M
- Jul 2010Grant (prize money)$2.7M
Investors
National Science Foundation
Tech stack
Apache Http ServerAzureConstant ContactCookiebotGoogle AnalyticsGoogle Font Api
#10
Funding Raised · Irvine, California · founded 2016$1.1Mraised▾
Funding Raised · Irvine, California · founded 2016
Developer of leveraging metamaterial technology based in Berkeley, California. The company's technology creates ultra-compact alternatives for Impact and vibration dampening while reducing the carbon footprint.
Funding rounds
- Aug 2019Grant (prize money)$908.9K
- Jul 2017Grant (prize money)$225K
Founders & team
Investors
America’s Seed Fund, Octane, Starburst
#11
Seed · Vista, California · founded 2013$100Kraised▾
Seed · Vista, California · founded 2013
Manufacturer of frame-less doors and windows
Funding rounds
- Nov 2013Seed$100K
Founders & team
#12
Funding Raised · Glendora, California · founded 1891 · 706 employees—raised▾
Funding Raised · Glendora, California · founded 1891 · 706 employees
Manufacturer of cement, concrete, and aggregates
LinkedIn Pulse recent public activity · Jul 2026
Audience: 18k LinkedIn followers — 12.7% of this cohort's audience · 28 engagements/post (1.9× cohort median)
Investors
OSTI
Tech stack
Apache Http ServerApple Icloud MailBootstrapBricksCalltrackingmetricsCloudflare
Funding & investor landscape
$79.9Mtotal disclosed funding
11companies funded
17disclosed rounds
0rounds last 90 days
Most active investors
Notable founders
Oren Klaff
CEO · OK Stone
Jason Chen
Chief Executive Officer · Ronbow
Juan Diaz
Co-Founder · ClimateCrete
Anastasiya Bavykina
Co-Founder · ClimateCrete
Joe Alamillo
Owner · ALAMILLO REBAR
Eric Edelson
CEO · Fireclay Tile
Noemi Bonessio
Founder · METAseismic
John Brant
CEO · METAseismic
Raffy Timonian
CEO & President · Premier Folding Doors
Krish Mehta
CEO · PHNX Materials
Andrew Cross
President & CEO · Truckee-Tahoe Lumber Company
Brad Campbell
President and Founder · Riot Glass
Prism market signals · United States · country-scoped Prism corpus, 1,138,770 docs
Market landscape — 10 sub-themes by coverage
Share of Building Materials coverage by sub-theme.
Regulatory-risk over time rising
Funding & growth over time
funding rising · growth rising
RESEARCH IN CALIFORNIA · Materials
How research on Advanced Materials in California is moving
A read on the academic research around Advanced Materials in California — which themes are gaining ground, the institutions and researchers driving them, and how the tone is shifting. Based on 90 papers.
UC Los Angeles, Berkeley, and Irvine lead California's optimistic advanced-materials research, predominantly exploring mechanics, sensor/energy-harvesting materials, and self-healing polymer composites across 90 papers.
90 papers · stance +0.59 · 47% breakthrough · 9% concern
top institutions
- University of California, Los Angeles19
- University of California, Berkeley15
- University of California, Irvine12
- California Institute of Technology10
- University of California San Diego7
leading researchers
Edwin A. Peraza Hernandez · Lizhi Sun · Qiguang He · Sagil James · Yadong Yin · Anurag Mahajan
prism intelligence · tone & topics
97% positive · 1% critical tone
ManufacturingRoboticsMaterials ScienceHealthEnergyConstruction
▲
Breakthroughs38 · 42%
▲ 42%→49% share
▲1.2× share momentum9 median citations53% since 2021mostly methods-led
Smart material breakthroughs are surging — papers more than doubled from 5 to 12, driving field-share from 42% to 49%.
rising sub-themes (early→recent)
- Smart material5→12
- Actuator1→4
- Piezoelectricity1→3
- Nanotechnology4→6
- Polymer4→5
Newly emergingPolymerization 0→3 · Liquid crystal 0→3
Landmark Piezoelectric Ribbons Printed onto Rubber for Flexible Energy Conversion · 491 cites
◆
Advancements36 · 40%
▼ 38%→32% share
▼0.8× share momentum7 median citations36% since 2021mostly methods-led
Advancements are cooling overall (38%→32%) despite Nanotechnology tripling from 1 to 3 papers.
rising sub-themes (early→recent)
- Actuator2→4
- Nanotechnology1→3
- Smart material3→4
Landmark Multistable Shape‐Reconfigurable Architected Materials · 425 cites
▼
Concerns7 · 8%
▲ 4%→12% share
▲3.0× share momentum20 median citations71% since 2021mostly reviews
Concern research intensified sharply — field-share tripled from 4% to 12%, led by Smart material, Morphing, and Soft robotics.
rising sub-themes (early→recent)
- Smart material3
- Morphing2
- Soft robotics2
- Nanotechnology2
- 3D printing2
Landmark Smart Materials for Microrobots · 402 cites
Common questions
How many Building Materials companies are there in California, United States?
Radar tracks 290 indexable Building Materials companies headquartered in California, United States that meet our profile-completeness bar.
What is the total funding raised by Building Materials companies in California, United States?
The Building Materials companies in California, United States on this list have raised a combined $79.9M in disclosed equity funding across 11 funded companies.
Which is the highest-funded Building Materials company in California, United States?
Conexwest is the highest-funded Building Materials company in California, United States, with $30M in disclosed equity funding.
How many Building Materials companies in California, United States are funded?
11 of the 290 Building Materials companies in California, United States on this list have disclosed at least one equity funding round.
How many Building Materials unicorns are there in California, United States?
None of the Building Materials companies in California, United States on this list currently has a disclosed valuation of $1B or more.
Who are the top investors in California, United States Building Materials companies?
The most active investors in California, United States Building Materials companies on this list include AEA Investors, ACProducts, AME Cloud Ventures, America’s Seed Fund, Ares Management.
Rohit KhannaTrends & Stories
Rohit lives in the feed. He covers what's moving right now — the funding rounds, launches and shifts breaking across the trade press — and ties them back to where the sector is heading.