Best Investment Banks Companies in California, United States
The 466 best Investment Banks companies in California, United States in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: B. Riley Financial.
Ranked: Best Investment Banks companies in California
| # | Company | Disclosed funding | Last round | Stage | Founded | Founder | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|
| 1 | The Helvetica Group Real estate investment bank providing private lending and investment management services | $3M | — | Early Stage | 2001 | Chad Mestler President & CEO | — | — |
| 2 | 555 Capital Advisors Independent corporate advisory firm | — | — | Unfunded | 2015 | Andre Guardi Founder & Managing Partner | — | — |
| 3 | A. May Consulting Consulting firm that creates environmental, social, and governance and corporate social responsibility… | — | — | Unfunded | 2016 | Alissa May Founder | — | — |
| 4 | abp capital ABP Capital is a finance company that engages in real estate, banking, private equity, and financial services. | — | — | Private | 2012 | Evert Alsenz Co-Founder | — | — |
| 5 | Accelerate Sports Boutique investment bank specializing in sports teams, leagues, and related businesses | — | — | Unfunded | 2013 | Brent Lawrence Founder & CEO | — | — |
| 6 | Ackrell Capital Independent investment bank focused on the middle market | — | — | Deadpooled | 2003 | Mike Ackrell Founder & Managing Partner | — | — |
| 7 | Acquisition Group Venture capital fund focused on multiple sectors | — | — | Unfunded | 1993 | Carlo Orshani Founder & Partner | 177 patents Advanced driver-assistance systems: vehicle imaging, safety monitoring, and alarm filtering | — |
| 8 | Acquisition Partners M&A firm providing accountable deal flow for qualified buyers and business owners | — | — | Unfunded | 2016 | Tony Roe Co-Founder & Vice President | — | — |
Top 12 Investment Banks companies in California
#1
Funding Raised · Coronado, California · founded 2020 · 43 employees$75Mraised▾
Trusted Deal Advisory - Leo Berwick provides tax advisory and consulting services for mergers and acquisitions. We are your trusted deal advisors. #TrustedDealAdvisory #LeoBerwick www.leoberwick.com
- Jul 2025Conventional Debt$75M
#2
Public · Los Angeles, California · founded 1997 · 1440 employees$746.5Mraised▾
M&A, capital raising, and strategic advisory firm. It is focused on healthcare, consumers, business services, and multiple sectors.
- May 2021Post IPO$150M
- Jan 2020Post IPO$4M
- May 2019Conventional Debt$100M
- Sep 2018Conventional Debt$100M
#3
Seed · Newport Beach, California · founded 2024$470Kraised▾
Business consultancy and advisory service provider. It provides a range of services including fractional CFO, strategic advisory, mergers and acquisition, debt arrangements, supply chain optimization and more. It provides a range of services to restaurant businesses from strategic consulting and back-office support to syndicated capital for growth or acquisition.
- Jul 2024Seed$470K
#4
Series B · Santa Monica, California · founded 2011 · 54 employees$15Mraised▾
Global investment bank providing financial advice and strategic transaction execution. The firm delivers world-class financial advice and assistance to companies, institutions, governments, and individuals. Services center on achieving clients’ aims to consummate strategically important transactions and enhance shareholder value. They offer raising capital, mergers and acquisitions advisory, restructuring advisory, shareholder relations, strategic financial advice, fairness and valuation opinions, and placement agent services. The firm brings intellectual firepower, global expertise, rigorous analysis, applied business acumen, and senior-level attention to each client engagement. They are purely advisory, with no research, trading, or brokerage operations, and structure compensation to align interests with clients’ objectives.
- Oct 2021Series B$15M
#5
Series C · Los Angeles, California · founded 1997 · 149 employees$31.4Mraised▾
Full-service investment bank offering integrated platform to institutional investors and companies. The firm provides sophisticated sales and trading services to institutional investors. It delivers investment banking advisory, capital markets, and restructuring services to middle market corporate clients. The company's integrated service platform and expertise across the global capital structure enable it to provide clients with research-driven ideas, superior advisory services, and trade execution. It identifies opportunities under any market conditions and offers creative solutions to its clients. The firm's market expertise and research coverage include sectors like airlines, transportation, consumer, energy, industrials, healthcare, and security. It hosts professional conferences and provides resources to its sales and trading clients, including desk analysis and equity and industry research reports. Client login is available for access.
- Apr 2012Series C$31.4M
#6
Series A · Los Angeles, California · founded 1997 · 18 employees$8Mraised▾
Boutique investment bank and wealth management firm delivering tailored financial solutions. The firm provides comprehensive financial solutions across investment banking and wealth management. Investment banking services include advisory for mergers and acquisitions, capital raising for real estate, and valuation services. They offer expertise across diverse sectors including media, entertainment, technology, healthcare, life sciences, industrials, and specialty & lender finance. Wealth management services focus on personalized strategies, financial planning, and fiduciary commitment, serving as a trusted advisor to entrepreneurial clients. They build lasting partnerships based on trust and dedication, offering high-touch services that integrate investment expertise with comprehensive financial planning.
- Jun 2014Series A$8M
#7
Acquired · San Francisco, California · founded 2007 · 146 employees$6Mraised▾
M&A advisory firm focused on multiple sectors
- Aug 2014Series A$6M
#8
Public · Irvine, California · founded 1996 · 4062 employees$3Mraised▾
Global consulting firm specializing in business transformation and project execution. They provide consulting services across strategy, finance, technology, risk, and operations. They partner with organizations to streamline processes, lead change, and deliver results. Their expertise spans industries including healthcare, financial services, and technology. They offer services like digital transformation, data analytics, financial planning, risk management, and supply chain optimization. They support C-suite leaders with hands-on expertise and strategic insight, helping them navigate complex challenges and drive progress. They focus on human-centered design and technology to elevate human potential. They offer flexible talent solutions to meet evolving business needs.
- Sep 2017Post IPO$2.9M
- Jun 2010Post IPO$125.5K
#9
Series A · Los Angeles, California · founded 1999 · 51 employees$3.2Mraised▾
Growthink helps executives and entrepreneurs grow their businesses so they can create jobs, offer customers better products and services, realize personal satisfaction and wealth, and fund programs that make the world a better place. We accomplish this through our suite of services and products, including expertly identifying and pursuing new opportunities, building marketing and growth strategies, and developing and executing on innovation, execution, and exit plans.
#10
Early Stage · Carlsbad, California · founded 2001$2.9Mraised▾
Real estate investment bank providing private lending and investment management services. The company is a real estate investment firm and family office, offering private lending, distressed asset management, brokerage, and family office services. It focuses on alternative investments secured by real estate assets, working with brokers, bankers, lenders, and financial advisors to provide clients with access to financing. The firm takes an innovative approach to private money lending and asset acquisitions, incorporating conventional underwriting processes with common sense evaluation. They offer services like debt and equity financing strategies, investment identification, and distressed property consultation. They also provide private money correspondent lending, targeting investment properties and REO flips. The company acts as a direct portfolio lender, offering alternative financing solutions and investment sales.
#11
Seed · Laguna Beach, California · founded 2012 · 8 employees$1.2Mraised▾
Placement Agent
- Aug 2015Unattributed$157K
- Apr 2015Seed$50K
- Aug 2013Seed$1M
#12
Acquired · San Francisco, California · founded 2001 · 160 employees$1.5Mraised▾
FinTech investment bank providing strategic and financial advisory services. The company focuses exclusively on the financial technology sector, defined as the convergence of technology-based solutions and financial services. It delivers investment banking services, industry knowledge, relationships, and senior-level experience. The firm offers a suite of strategic and financial advisory services to maximize value to shareholders. It caters to CEOs and industry decision-makers, offering mission-critical advice. The company's expertise lies in mergers and acquisitions, strategic alliances, capital raising, and other financial transactions within the FinTech space.
- Aug 2016Seed$1.5M
Funding & investor landscape
Notable founders
Market landscape — 10 sub-themes by coverage
Share of Investment Banks coverage by sub-theme.
Regulatory-risk over time rising
Funding & growth over time
funding rising · growth rising
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.