Best Energy Companies in Oakland, United States
The 38 best Energy companies in Oakland, United States in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: BrightSource Energy.
Our analysis of 171 Energy companies
$71.4b in tracked funding; 82% of the stack-profiled cohort runs cloud-native; funding activity peaked in 2025.
Ranked: Best Energy companies in Oakland
| # | Company | Disclosed funding | Last round | Stage | Founder | Founded | Tech stack | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|
| 1 | BrightSource Energy AI-powered energy management software optimizing renewable energy and storage portfolios | $806M | 100 mo ago | Series G | Dave Ramm Chairman and CEO | 2006 | WordPressMySQLPHP+22 | — | — |
| 2 | SOLARCYCLE Provider of solar panel recycling services | $38M | 42 mo ago | Series A | Pablo Dias Co-Founder & CTO | 2022 | WebflowjQuery-pjaxcore-js+17 | 36 patents Efficient recycling and material recovery processes for end‑of‑life photovoltaic modules | — |
| 3 | GRID Alternatives Solar panel & products installation company 40Growth top 35%Tech top 50%Funding bottom 49%Talent bottom 49% All 6 signals ▾Growthtop 35% Techtop 50% Fundingbottom 49% Talentbottom 49% Globalbottom 37% Marketbottom 28% Growth: Fresh capital in last 24 mo Tech: 29 technologies across 4/8 capability areas · Cloud: Cloudflare, Fastly rank vs industry peers · Fliar Intelligence Index 40/100 | $23M | 15 mo ago | Funding Raised | Karen Edson CEO | 2001 | DrupalApple iCloud MailGoogle Workspace+23 | — | — |
| 4 | Ocergy Developer of fit-for-purpose floating systems for energy production 42Patents top 32%Innovation top 33%Funding top 38%Growth top 45% All 8 signals ▾Patentstop 32% Innovationtop 33% Fundingtop 38% Growthtop 45% Moattop 45% Techbottom 49% Globalbottom 40% Marketbottom 17% Patents: 21 patents matched (strict assignee match) · 20 filings since 2022 vs 1 in 2017-21 Innovation: 21 patents (top 50% of patent-holders) · 20 filings since 2022 vs 1 in 2017-21 rank vs industry peers · Fliar Intelligence Index 42/100 | $17M | 28 mo ago | Series B | — | 2019 | WordPressPleskMySQL+30 | 21 patents Design and assembly of floating offshore platforms and marine cable connector systems | — |
| 5 | Biosphere Provider of fermentation process development and contract manufacturing 10Funding top 44%Moat bottom 49%Talent bottom 49%Patents bottom 37% All 8 signals ▾Fundingtop 44% Moatbottom 49% Talentbottom 49% Patentsbottom 37% Techbottom 36% Globalbottom 31% Innovationbottom 26% Marketbottom 16% Funding: Raised $8.8M across 1 rounds · 1 rounds over 1 yrs (1.0/yr) Moat: Editorial + unicorn rating 1/10 · IP moat: 9 patents rank vs industry peers · Fliar Intelligence Index 10/100 | $9M | 20 mo ago | Seed | Brian Heligman Co-Founder & CEO | 2015 | WebflowjQueryHSTS+5 | 9 patents Flexible-to-rigid food packaging structures and extrusion molding technologies for packaging applications | — |
| 6 | Allotrope Partners Developer of bio-energy projects | $5M | 125 mo ago | Series A | Marc Stuart Founder & CEO | 2013 | Squarespace CommerceSquarespaceStimulus+10 | — | — |
| 7 | MMCISolar Solar thermal technology company providing renewable energy and job opportunities | $1M | 81 mo ago | Funding Raised | Mark Miles Founder & CEO | 2010 | — | — | — |
| 8 | GSSG Solar Solar investment and financial advisory firm | $1M | 162 mo ago | Seed | — | 2013 | WordPressMySQLPHP+22 | — | — |
| 9 | Sunfig Developer of solar energy projects | $200K | 86 mo ago | Acquired | Ashton Vandemark Co-Founder & CEO | 2017 | — | — | — |
| 10 | Siva Cycle Manufacturer of rechargeable battery for bicycles | $100K | 140 mo ago | Deadpooled | Aaron Latzke Co-Founder | 2012 | — | — | — |
Top 12 Energy companies in Oakland
#1
Funding Raised · Oakland, California · founded 2001$22.6Mraised▾
Solar panel & products installation company
- May 2025Grant (prize money)$1.5M
- May 2025Grant (prize money)$20.1M
- Apr 2025Grant (prize money)$999.5K
- Sep 2009Grant (prize money)$15K
#2
Seed · Oakland, California · founded 2015$8.8Mraised▾
Biosphere is a biotech company specializing in fermentation process development and contract manufacturing. They aim to expand access to material abundance through biological manufacturing.
- Jan 2025Seed$8.8M
#3
Series B · Oakland, California · founded 2019 · 33 employees$16.6Mraised▾
Developer of fit-for-purpose floating systems for energy production
- Apr 2024Series B—
- Mar 2024Series B$14.3M
- Apr 2021Series A$2.2M
#4
Series G · Oakland, California · founded 2006 · 4 employees$805.7Mraised▾
AI-powered energy management software optimizing renewable energy and storage portfolios. The company revolutionizes energy management with its AI-powered optimization software, providing advanced solutions for renewable energy and storage. By leveraging cutting-edge technology and data analytics, it empowers clients to make informed decisions that enhance sustainability and profitability. The software optimizes photovoltaics, battery storage, microgrids, wind turbines, and EV charging stations. It offers intelligent optimization, cost reduction, and revenue maximization through AI-driven market participation and digital twin technology. The platform provides real-time computation and revenue maximization for diverse energy assets using physics-based modeling and AI. It features a flexible configuration engine, open architecture, and end-to-end platform capabilities, including planning, sizing, and real-time revenue optimization. The company leverages expertise in cybersecurity and hardware-software integration to protect assets and ensure grid stability. This is a SaaS based B2B solution.
- May 2018Grant (prize money)—
- Sep 2017Conventional Debt$9.2M
- Nov 2016Grant (prize money)$829.1K
- Apr 2016Conventional Debt$3.9M
#5
Series A · Oakland, California · founded 2022 · 30 employees$38.2Mraised▾
Provider of solar panel recycling services
- Feb 2023Series A$31.6M
- Jun 2022Seed$6.6M
- Apr 2021Seed$4.7M
#6
Series A · Oakland, California · founded 2013 · 3 employees$5Mraised▾
Developer of bio-energy projects
#7
Funding Raised · Oakland, California · founded 2010$1.3Mraised▾
Solar thermal technology company providing renewable energy and job opportunities. It focuses on developing solar thermal collectors that use air to transport heat, eliminating the need for copper and stainless steel. This approach allows for the use of lower-cost, recyclable materials and simplifies retrofitting to existing heating infrastructure. The company aims to foster an industry that employs diverse communities while making them more resilient by displacing fossil fuel heat. It is committed to technology development in service to society and the environment, enabling communities with renewable energy solutions and creating rewarding, living wage jobs. The company's technology offers a sustainable, self-reliant approach to renewable heat.
- Dec 2019Grant (prize money)$224.9K
- 2017Grant (prize money)—
- Mar 2015Grant (prize money)$909.4K
- Jul 2013Grant (prize money)$179.4K
#8
Seed · Oakland, California · founded 2013 · 30 employees$1.3Mraised▾
Solar investment and financial advisory firm
- Feb 2013Seed$1.3M
#9
Acquired · Oakland, California · founded 2017 · 3 employees$200Kraised▾
Provider of solar project optimization software services in Oakland, California. The company increases solar project return through upstream design, performance, and financial modeling, thereby helping customers evaluate how different modules, products, costs, or boundaries impact project's generation and financial outcomes.
- Jul 2019Grant (prize money)$200K
#10
Deadpooled · Oakland, California · founded 2012$100Kraised▾
Manufacturer of bike-powered generator intended to charge iPhone, smartphone, or virtually any USB-compatible mobile device. The company's product is a lightweight bicycle generator and detachable on-board to charge any personal electronics while cycling, generators mount on standard bicycle frames and the battery packs detach easily to quickly extend the battery life, enabling customers to get an efficient bicycle generator and rechargeable battery pack.
- Dec 2014Seed$100K
#11
Funding Raised · Oakland, California · founded 2016 · 1 employees—raised▾
Ava Community Energy, formerly known as East Bay Community Energy (EBCE), offers clean energy, low rates, and local programs to customers in Alameda County and the Valley. They provide resources and programs to help customers understand their energy bills, save money, and transition to renewable energy solutions.
#12
Seed · Oakland, California · founded 2022 · 28 employees—raised▾
Manufacturer of solar PV modules and battery
- May 2023Seed—
Funding & investor landscape
Notable founders
Market landscape — 10 sub-themes by coverage
Share of Energy coverage by sub-theme.
Regulatory-risk over time rising
Funding & growth over time
funding rising · growth rising
How research on Grid Energy Storage is moving in the United States
A read on the academic research around Grid Energy Storage — which themes are gaining ground, the institutions and researchers driving them, and how the tone is shifting. Based on 5,941 United States-affiliated papers.
- Electric Power Research Institute204
- Pacific Northwest National Laboratory202
- Argonne National Laboratory193
- Northeastern University151
- Massachusetts Institute of Technology124
- Battery (electricity)57→359
- Electrolyte37→318
- Electrochemistry30→240
- Cathode32→224
- Anode37→209
- Renewable energy40→492
- Battery (electricity)59→507
- Power (physics)8→227
- Electrolyte27→244
- Electrochemistry37→240
- Battery (electricity)35→184
- Renewable energy24→156
- Electrolyte13→114
- Electrochemistry10→80
- Cathode9→72
Where energy storage is researched across United States
Location clusters by institution affiliation — each city's volume, stance tone, and a quick read on its hot topic, what's advancing, the opening opportunity, and the main concern.
Who's filing energy storage patents in the United States
United States energy storage patent filing is accelerating — 8,522 filings from 3,681 assignees (2016–2025), led by General Electric, ESS Technology, GM Global TECH Operations; annual filings 687→1058.
- General Electric592
- ESS Technology276
- GM Global TECH Operations233
- Fastcap Systems205
- UNIV California180
- Rondo Energy157
- United Technologies154
- Battelle Memorial Institute146
Common questions
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.