Fundraising Fox
New York · 7 people tracked
Also known as JEFFERIES INVESTMENT ADVISERS LLC · JEFFERIES RESEARCH SERVICES LLC · LEUCADIA ASSET MANAGEMENT LLC
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Investment thesis
Jefferies is a full-service investment banking and capital markets firm offering investment banking, global research, equities, fixed income, alternative asset management, and wealth management services. This page publishes a series of leadership letters from firm management.
Source: firm website, verified Sep 29, 2026.
Team · 7 people
from curated & public directoriesFounder mafia
The Jefferies mafia →31 people who came through Jefferies went on to found or lead other companies.
What they invest in
from 16 of 20 portfolio companiesFintech ×8Healthtech ×6SaaS ×5Biotech ×4Medical Devices ×4AI & Machine Learning ×3Enterprise Software ×3Deep Tech ×2
HQs:United States×12France×1United Kingdom×1Saudi Arabia×1
Investments · 20 tracked
founders shown can be your intro pathBy year:2026 · 22025 · 22023 · 12022 · 22021 · 12018 · 22013 · 22007 · 214 dated
Navan is an AI-powered platform for corporate travel and expense management that combines booking, policy management, and real-time reporting for enterprise clients.
Enterprise SoftwareFintechSaaSTravel & HospitalityPalo Alto, US
CohenTwigAriel Cohen(Founder)inAurélien Nolf(Chief Financial Officer)inMichael Sindicich(President)in
Co-investors01 AdvisorsAkkadian VenturesAlkeon InnovationAndreessen HorowitzBase PartnersCoatue Management+18 more
Navitas designs and manufactures gallium nitride and silicon carbide power semiconductors for high-power applications including artificial intelligence data centers, grid infrastructure, performance computing, and industrial electrification.
Chris Allexandre(President, Chief Executive Officer and Board member)
Co-investorsMESH
OS Therapies (OST) is a clinical-stage cancer immunotherapy company developing treatments that activate the immune system to target HER2-expressing cancers, initially focusing on osteosarcoma in children and adults.
BiotechHealthtechGrasonville, US
Paul A. Romness(Founder, Chairman, President and Chief Executive Officer)inChristopher P. Acevedo(Chief Financial Officer)inRobert G. Petit(Chief Medical Officer and Chief Scientific Officer)inGerald Commissiong(Chief Business Officer)inPaul Romness(Founder, Chairman, President and Chief Executive Officer)in
BoardJohn Ciccio(Director)
Co-investorsK20 Fund
Taysha Gene Therapies develops and commercializes gene therapies for monogenic diseases of the central nervous system, serving patients with rare and larger CNS conditions.
BiotechDeep TechDigital HealthHealthtechMedical DevicesTexas, US
R.A. Session II(Executive Officer, Director)inSean P. Nolan(Chief Executive Officer and Board Chairman)in
BoardPaul B. Manning(Director)in
Co-investorsGV (Google Ventures)BairdGoldman SachsPBM Capital
Aiera provides AI-enabled infrastructure that gives institutional research teams permissioned, entitlement-aware access to proprietary financial content such as broker research, expert insights, transcripts, filings, live earnings calls, and news through a single searchable environment.
AI & Machine LearningEnterprise SoftwareFintechNew York, US
Ken Sena(Founder)inBryan Healey(Executive Officer, Director)in
BoardLogan Allin(Director)inCharles M. Hazard, Jr.(Director)inDiane Schumaker-Krieg(Director)
Co-investorsBank of AmericaDeutsche BankEvercoreHSBCUBSFin Capital+3 more
ApiJect develops a platform for producing prefilled injectable medicines and vaccines, aimed at making injectable drug delivery safer and more accessible.
Advanced ManufacturingHardwareHealthtechMedical DevicesStamford, US
Jay Walker(Director, Executive Officer)inPeter Stone(Executive Officer)Hanjin In(Director)Raphael Bejarano(Director)Marc Koska(Director)Kevin Sheridan(Director)
Cardiac Dimensions develops medical technology to treat heart failure caused by functional mitral regurgitation (FMR), aiming to address underlying causes rather than symptoms.
BiotechHealthtechMedical DevicesKirkland, US
Frederick A. Stewart(Executive Officer, Director)Rick Wypych(Executive Officer)in
BoardKurt Wheeler(Director)Nathan Every(Director)Douglas C. Fisher(Director)Gerry Brunk(Director)in
Co-investorsAPERTURE Venture PartnersLumira VenturesRedbus VenturesAlly Bridge GroupClaret Capital PartnersM.H. Carnegie & Co.
erad supplies capital to startups across the Middle East without requiring equity stakes, offering funding decisions based on business data integrations within two days.
FintechRiyadh, SA
Salem Abu-Hammour(Founder)inYoussef Said(Founder)inFaris Yaghmour(Founder)in
Co-investors500 GlobalFlucas VenturesJoa CapitalKhwarizmi VenturesKube VCNuwa Capital+8 more
InvestX provides access to private market investment opportunities for a broader range of investors beyond institutions.
FintechSector Agnostic
Marcus New(Founder and Chief Executive Officer)inDan Sanders(CEO, InvestX Markets LLC & Head of Private Markets)inDon Short(Head of Venture Equity & Chief Compliance Officer (Canada))in
Co-investorsAltoIRA Empire Trust Custodian FBO Abul Jamal Roth IRASenaHill PartnersCanaccord Genuity GroupVirtu Financial
Nanobiotix develops physics-based nanotherapeutics for cancer treatment, applying nanotechnology to expand therapeutic options for oncology patients.
BiotechDeep TechMedical Devices
Co-investorsHEALTHCARE ROYALTY PARTNERSKaristaSeventure Partners
Parker provides banking services through a digital platform.
FintechNew York City, US
Milan Ray(Founder)inYacine Sibous(Founder)in
Co-investorsEthos VCY CombinatorA*Color CapitalDay One VenturesInflection Ventures+5 more
Reality Defender develops an AI platform for detecting deepfakes and synthetic media, serving enterprise organizations to prevent fraud and impersonation.
AI & Machine LearningCybersecurityDefense TechEnterprise SoftwareSaaSNew York City, US
Ben Colman(Co-Founder and CEO)inGaurav Bharaj(Co-founder)inAli Shahriyari(Co-Founder and Advisor)inLars Buttler(Founder)inMilos Fulton(Executive Officer)in
BoardAlexander Ross(Director)in
Co-investorsAmino CapitalArgon VenturesBantam GroupBooz Allen VenturesDCVC (Data Collective)Evolution VC Partners+21 more
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Co-investorsActivant CapitalOmega Venture PartnersSapphire Ventures
Dallas, US
Robert A. Wilson(Chief Executive Officer and Board of Director)Duwayne Miller(President)
Co-investorsGarland Capital Group
Cambridge, US
Assaf Biderman(Executive Officer, Director)inCarlo Ratti(Director)Jeff Beck(Director)Santo Polito(Director)
BoardDan Herscovici(Director)David Fialkow(Director)in
Co-investorsEmpire AngelsSony Ventures CorporationGeneral CatalystOurCrowdSpark Capital
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Updraft is a UK financial app offering personal and debt consolidation loans (£1,000–£25,000 over 2–5 years) that let consumers combine credit card balances into a single monthly repayment.
ConsumerFintechSaaSLondon, GB
Aseem Munshi(Founder)in
Co-investorsQuilam CapitalNatWest
Visible provides a platform for founders to send regular investor updates, manage investor relationships, and run fundraising processes.
AI & Machine LearningData & InfrastructureFintechSaaS
Co-investorsConnetic VenturesHigh AlphaKima VenturesBank of AmericaGoldman SachsKhosla Ventures+4 more
A company focused on improving understanding of energy-limiting, often invisible chronic conditions such as Long Covid and ME, which it states affect over 100 million people.
Digital HealthHardwareHealthtechWellness & Fitness
Harry Leeming(Founder)inLuke Martin-Fuller(Founder)in
Co-investorsCircle & Co.Flexcap VenturesOctopus VenturesBank of AmericaCalm/Storm VCGoldman Sachs+6 more
Other
Tracked investments with no reachable website or further public details — typically companies that wound down, renamed, or were absorbed.
Exits · 4
4 IPOsNavanNASDAQ: NAVNNavitas SemiconductorNASDAQ: NVTSOS TherapiesNYSE: OSTXTaysha Gene TherapiesNASDAQ: TSHA
Portfolio news
latest coverage across their companies
Reality Defender · biometricupdate.com · Sep 11, 2026
Parker · techcrunch.com · May 9, 2026
Aiera · aiera.com · Aug 21, 2025
Frequently asked questions
- How many investments has Jefferies made?
- Jefferies has 20 tracked investments, 4 of which have exited, including 4 dated in the last 24 months.
- What sectors does Jefferies focus on?
- Jefferies focuses on Crypto & Web3.
- Where is Jefferies located?
- Jefferies is headquartered in New York, US.
Images
Co-investors · 17
General Catalyst is a venture capital firm operating as a partnership focused on company building and accelerating the growth of the businesses it backs.
Lightspeed Venture Partners is a global venture capital firm that backs founders from Seed through Series F and beyond, emphasizing deep, immersive partnerships with the companies it invests in.
Sapphire Ventures partners with expansion-stage enterprise software companies, aiming to help them become category leaders. Its Platform team of operators supports portfolio companies with customer introductions, go-to-market talent, and growth advisory.
Sequoia Capital is a venture capital firm that partners with founders to build technology companies.
True Ventures is an early-stage venture capital firm that has backed founders since 2005, partnering at the earliest moments of company building.
Canaan Partners is a venture capital firm with over 30 years of history, backing companies across technology and healthcare sectors through close, hands-on partnerships with founders.
Slow Ventures is a generalist early-stage venture capital firm founded in 2011, with offices in San Francisco, Boston, and New York, investing in the earliest rounds of companies across many sectors.
Cota Capital is a San Francisco-based technology investment firm that invests in private and public US-based modern enterprise technology companies, offering founders operational expertise, market insights, and an industry network.
75 & Sunny operates as both a venture fund and startup studio where Zillow co-founder Spencer Rascoff directly incubates companies like Queue while leveraging his media presence as a CNBC contributor and podcast host to give portfolio companies exposure that few small funds can match. The LA-based fund concentrates heavily on proptech and "future of living" investments while co-creating companies with unconventional capital structures like SPACs and fractional home-ownership models, drawing on Rascoff's experience navigating public markets.
Tenaya Capital is a venture capital firm that partners with entrepreneurs building enduring companies, focusing on growth-stage investments.
Wildcat Venture Partners is a venture capital firm that backs technology entrepreneurs aiming to create new market categories.
WestWave Capital is an early-stage venture firm run by former entrepreneurs that backs AI-native and deep-tech founders building enterprise software, investing at inception before consensus.
▶5 more co-investors
National Grid PartnersIndie.vcGeneration Investment ManagementStarVest PartnersStartup Capital Ventures
Firms observed investing alongside Jefferies, from public investor directories. Shared companies are the overlap with Jefferies's recorded portfolio.
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