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O’KEY Group
Food & Drink

O'KEY Group is the eighth-largest Russian food retailer by revenue, operating 150 stores branded as 79 O'KEY hypermarkets and 71 DA! discounters. The company has strong brands and is known for the quality of products and best-in-class shopping experience.

Oakley Capital Investments

Oakley Capital Investments invests in a portfolio of private mid-market UK and European companies. The manager aims to achieve superior returns by purchasing businesses at depressed valuations and making strategic and operational improvements.

Ocata Therapeutics
Pharmaceuticals & healthcare

Ocean Wilsons Holdings
Investment trusts

Ocean Wilsons Holdings is a holding company with a controlling 58.25% stake in Wilson Sons, a listed Brazilian maritime and logistics business. It also has an investment division (OWIL), with a diversified portfolio of equities, bonds and other assets.

Oceania Natural
Consumer Support Services

Oceania Natural is a producer, distributor and reseller of natural food and supplement products sourced from New Zealand and the Pacific Islands, sold predominantly into the People’s Republic of China. Its chief products are manuka honey and related products, Noni juice and dietary supplements.


Oekoworld is a listed holding company for asset management, insurance brokerage and advisory services. It is one of Germany’s pioneers in SRI and ethical-ecological investment advisory, with its nucleus reaching back to 1975. It has preserved its successful core investment principles and reached AUM of €900m in February 2017.

Omega Insurance Holdings

Omega Insurance Holdings is domiciled in Bermuda and listed on the London Stock Exchange. It is an international insurer/reinsurer with a focus on short-tail, property-oriented classes.


OMG is a group of technology companies that provide image-understanding products and services for the entertainment, defence, life science, engineering and highways maintenance industries. It has recently launched its first consumer product, Autographer, the world's first intelligent wearable camera.

OncoGenex Pharmaceuticals
Pharmaceuticals & healthcare

OncoGenex is a drug discovery and development company creating novel treatments for various cancers. Its leading products are antisense therapies which promote the programmed cell death of tumour cells.

Oncolytics Biotech Inc
Pharmaceuticals & healthcare

Oncolytics Biotech is a Canadian company focused on developing Reolysin, a pharmaceutical formulation of the oncolytic reovirus, for the treatment of a wide variety of human cancers (Phase III trial in head and neck cancer).

Onconova Therapeutics
Pharmaceuticals & healthcare

Onconova Therapeutics is a clinical-stage biopharmaceutical company focused on developing novel small molecule drug candidates to treat cancer. Its lead drug candidate, rigosertib, is partnered with Baxter (Europe) and SymBio (Japan/Korea).


OnTheMarket is an estate agent-backed company that operates a synonymous property portal. It is the third-largest UK residential property portal provider in terms of traffic.

Onyx Pharmaceuticals
Pharmaceuticals & healthcare

Onyx is a biopharmaceutical company focused on developing and commercialising drugs for cancer and inflammatory diseases. Its approved drugs are Nexavar and Kyprolis. Drugs under development include oprozomib (Phase II, cancer) and ONX 0914 (pre-IND, ID). Onyx is located in South San Francisco, CA.

OPG Power Ventures

OPG is an independent power producer based in the Indian state of Tamil Nadu, with 112MW of capacity, which is set to increase to 742MW by FY15. The group captive model enables OPG to sell to industrial (minority) shareholders or state customers and is able to use either domestic or imported coal.

Pharmaceuticals & healthcare

Optos uses a leasing model for c 3,700 wide-field laser retinal imaging systems used by optometrists. Instruments are leased for a fixed amount ($2,000 per month) and 53% generate additional pay-per-use (PPU) revenues (c $20/use) over a typical 36-month contract. Vendor finance is being run down. Finance leasing is now used for c 100 units.

Oracle Coalfields

Oracle Coalfields plc is a coal exploration and development company. Block VI, its main project, has total measured resources (JORC) of 1.4bn tonnes of lignite coal and is located in southern Pakistan’s Thar coalfield.

Orbite Aluminae
Alternative Energy

Orbite Aluminae has developed a process to extract alumina from aluminous clays to produce smelter grade alumina (SGA), high purity alumina (HPA) and valuable byproducts. Commercial HPA production is expected at Orbite's Cap-Chat facility during 2013. Orbite owns 100% mining rights on an aluminous clay deposit at Grande-Vallée in Quebec.

Pharmaceuticals & healthcare

Orexo is a Swedish speciality pharma company, with expertise in drug delivery/reformulation technologies (in particular sublingual formulations) and a US commercial infrastructure for opioid dependence therapy Zubsolv (also filed in Europe). Orexo also has two clinical assets and three preclinical programmes.

Orion Health Group

Orosur Mining

Orosur Mining owns (100%) the San Gregorio gold mine in Uruguay (on care and maintenance) and controls the highly prospective, high-grade Anzá gold property in Colombia, which is now subject to an exploration and option agreement with Newmont Mining.

Oryzon Genomics
Pharmaceuticals & healthcare

Oryzon Genomics is a Spanish biotech focused on epigenetics. Iadademstat (ORY-1001, Phase IIa) is being explored for acute leukaemias and SCLC; Vafidemstat (ORY-2001) is in Phase IIa for AD, MS and aggression, and ORY-3001 is being developed for certain orphan indications.


Oshkosh Corporation is a leading manufacturer and marketer of access equipment, speciality vehicles and truck bodies for the primary markets of defence, concrete placement, refuse hauling, access equipment and fire and emergency services. Defence accounts for 48% of sales.

Pharmaceuticals & healthcare

Otto Energy
Oil & gas

Otto Energy is an Australia-listed E&P with exploration licences in the Philippines, Tanzania and Alaska. It has fully divested its producing Galoc field in the Philippines. Focus is now on Tanzania and Alaska.


Outsourcery is a UK-based cloud services provider. From its proprietary O-Cloud platform, the company delivers cloud-based ICT applications and solutions on a subscription basis via a network of partners.

Pharmaceuticals & healthcare

One Way Liver (OWL) develops and sells diagnostic services for non-alcoholic fatty liver disease. The company’s lead product, OWLiver, to diagnose non-alcoholic steatohepatitis (NASH), is planned to enter commercialisation in the United States in 2018 and is available in Europe.

Oxford Immunotec
Pharmaceuticals & healthcare

Oxford Immunotec is a global diagnostics company focused on developing and commercialising proprietary tests for the management of underserved immune-regulated conditions. The company’s T-SPOT.TB test has been approved for sale in over 50 countries, including the US, where it has received pre-market approval from the FDA, and in Europe, where it is CE marked, as well as Japan and China.

O2Micro International

O2Micro International is a fabless semiconductor supplier of analog/mixed-signal ICs for LED lighting, battery and power management applications. It is based in California's Silicon Valley, incorporated in the Cayman Islands, and its ADSs trade on NASDAQ.

Basic Industries

Ocean Capital

Ocean Capital comprises a group of companies engaged in the sourcing, structuring, provision, and management of long-term lending solutions to corporate borrowers, in specific industries, predominantly in Europe. Ocean Capital Associates LLP is the London-based investment management limited-liability partnership of Ocean Capital, majority owned by its investment team, and regulated by the FCA.


OceanaGold is an established gold producer listed on three exchanges (ASX, TSX and NZX) with exploration, development and production assets in New Zealand (Macraes, Frasers, Reefton) and the Philippines (Didipio), with total NI 43-101 resources of 10.3Moz gold and 363kt copper.

Odyssean Investment Trust
Investment trusts

Omega Diagnostics Group
Pharmaceuticals & healthcare

Omega is a UK-based company focused on developing and marketing in-vitro diagnostic products in infectious and autoimmune diseases and for food intolerance. Intolerance tests account for over 40% of revenues.

Omeros Corporation
Pharmaceuticals & healthcare

OmniVision Technologies

OmniVision Technologies is a fabless semiconductor company that is a leading supplier of CMOS image sensors. It is based in California's Silicon Valley.

Oncology Venture
Pharmaceuticals & healthcare

Oncology Venture is a biopharmaceutical company with a patent-protected mRNA-based drug response predictor platform that identifies patients highly likely to respond to treatment. The company is entering Phase II with six in-licensed drugs.

OncoMed Pharmaceuticals
Pharmaceuticals & healthcare

OncoMed is a clinical-stage biotechnology company engaged in developing monoclonal antibodies and other agents that target the biologic pathways critical to tumour-initiating cells, also known as cancer stem cells (CSC). It has five candidates in clinical development, including demcizumab (anti-DLL4, OMP-21M18). OncoMed has collaborations with Celgene, Bayer and GSK.

Pharmaceuticals & healthcare

Oncothyreon is developing L-BLP25, a Phase III cancer vaccine for non-small cell lung cancer (NSCLC) targeting MUC1 antigen; ONT-10, a follow-on vaccine candidate; PX-866, a pan-isoform PI-3K inhibitor in multiple Phase II studies; and ARRY-380, a small-molecule selective HER2 inhibitor.

Pharmaceuticals & healthcare

Onxeo is developing innovative oncology drugs based on DNA-targeting and epigenetics. The lead compound, AsiDNA, is a first-in-class DNA break repair inhibitor based on a unique decoy mechanism and currently evaluated in a phase I trial (DRIIV-1) for systemic administration in solid tumors.

Opexa Therapeutics
Pharmaceuticals & healthcare

Opexa is developing personalized T-cell immunotherapy to treat multiple sclerosis (MS) and other autoimmune diseases such as neuromyelitis optica (NMO). Lead candidate Tcelna is in Phase IIb studies for secondary progressive MS (SPMS), with data expected in H216.

Pharmaceuticals & healthcare

OPMEDIC Group is a Canadian provider of assisted reproductive technology (ART) services (~90% of revenue) and surgical and endoscopic services (~10%). Nearly all its facilities are located in Quebec, where in vitro-fertilisation (IVF) services are funded by the provincial government.

General Industrials

Orège is a clean-tech company founded in 2006 and listed on Euronext in 2013. It has developed an innovative, patented technology (SLG) to significantly reduce sludge treatment costs and improve environmental sustainability of the treatment process.

Orbis Gold

Orbis Gold is an Australian junior exploring for high grade gold deposits in Burkina Faso, where it has a total resource of approximately 2.5Moz. The company is looking to partner early stage IOCG and copper exploration interests in Queensland, Australia.

Orexigen Therapeutics
Pharmaceuticals & healthcare

Orexigen is a biopharmaceutical company focusing on obesity treatments. It will sell its sole product, Contrave, through its own salesforce in the US after taking back the rights from partner, Takeda. Contrave was launched in the US in Oct 2014 and approved in the EU in March 2015 under the trade name Mysimba.

Pharmaceuticals & healthcare

Ormonde Mining

Ormonde Mining is an AIM- and ESM-listed mineral development and exploration company with properties in western Spain. It is advancing a low-cost tungsten operation at Barruecopardo slated for first production in 2013.

Orpheus Energy

OEG is focused on thermal coal activities in Kalimantan, Indonesia. It is pursuing a vertical integration strategy and has acquired exclusive port allocation slots that are being used to generate additional revenue through loading other producers' coal.

OSE Immunotherapeutics
Pharmaceuticals & healthcare

OSE Immunotherapeutics is an immunotherapy company based in Nantes and Paris, France and listed on the Euronext Paris exchange. OSE is currently developing immunotherapies for the treatment of solid tumours and autoimmune diseases and has established several partnerships with large pharma companies.

Osirium Technologies

UK-based Osirium Technologies designs and supplies subscription-based cyber security software. It has four products: privileged access management (PAM), privileged task management (PTM), privileged session management (PSM) and privileged behaviour management (PBM).

OTC Markets Group

OTC Markets Group operates the OTCQX, OTCQB and Pink financial markets for over 10,000 US and global securities. OTC Link LLC, a member of FINRA, operates OTC Link ATS and OTC Link ECN, both SEC-registered Alternative Trading Systems.


Outotec is the global leader in minerals and metals processing technology. It supplies machinery and related technology to refine ferrous and non-ferrous materials, from ore to pure metal. 80% of sales constitute machinery, with the remainder made up of services.

Pharmaceuticals & healthcare

OvaScience is a US-based life sciences company focused on developing and commercialising new treatments for infertility. The company's products (AUGMENT, OvaTure) are based on the discovery of egg precursor cells in ovaries. Both products are designed to improve in vitro fertilisation.

Oxford BioMedica
Pharmaceuticals & healthcare

Oxford BioMedica’s (OXB) LentiVector technology underpins the company’s strategy. OXB generates significant revenue from partners that utilise its technology, notably Novartis, Bioverativ, Orchard Therapeutics and Immune Design. OXB is in partnering discussions about internally developed assets.