About Us

Investment One Stockbrokers International Limited (IOSIL), a dealing member of the Nigeria Stock Exchange, and licensed by Securities and Exchange Commission as Broker/Dealer to offer funds/portfolio management services, securities brokerage and financial advisory services to individuals and institutional clients. 

Our Products


Explore the equities market and trade on the go


Track and retrieve lost Shares/Dividends


Limitless possibilities without internet connection: Dial *5678#.


Discover a world of opportunities with simplified investments.


New to the stock Market? Learn how to trade with our Virtual Investment Simulator

Our Services

News Feed

Proshare’s 2020 Online Trading Ranking Survey.
MRS Oil Nigeria Plc – Annual General Meeting.

Consolidated Hallmark Insurance Plc – Corporate Action Announcement

Unilever Nigeria Plc – Notification of Unilever groups.

Our Locations

Head Office

37 Kofo Abayomi, Victoria Island, Lagos State.


10 Olaide Benson Street, Along Ikorodu Road, Maryland. Lagos State.


5th Floor, Churchgate Plaza, Tower C. Plot 473, Cadastral Zone AO, Constitution Avenue, Central Business District. Abuja


Plot 141 Olu-Obasanjo Charis Plaza, GRA phase 2, Port Harcourt, Rivers State.


 Kwara Hotel Ahmadu Bello Way. G.R.A, Ilorin,. Kwara State.

Security Trading

We manage and execute trades professionally on behalf of our clients through effective diversification, actively maximizing opportunities based on client’s risk appetite and investment needs and goals.

Debt Issuance/Capital Raising

Stockbrokers to firms that raise funds in the Equities Market via private placement or public offer.

  • Stockbrokers to firms that intend to list or delist (Regulatory or Voluntary) from the NSE.

Broker to Bank

Our BTB platform is one of our easy accesses for our clients to the equities market through direct execution of mandates from their bank. (Currently on GTB online platform)

Portfolio Management

Dedicated brokers that cater to High Net worth Individuals / institutional clients with discretionary or non- discretionary options for the management of their equity portfolio

Research/Market Inisight

As part of our core values, we pride ourselves in having both the fundamental and technical knowledge necessary to unlocking and retaining value in our local market.

Fixed Income Trading

As one of the few Fixed Income Market Makers (FIMMs) we support the NSE’s retail-bond offering by providing liquidity.  Investment-One Stockbrokers Int’l provides two-way quotes to the market thus ensuring that the trades  are executed.

Debt Instruments: We facilitate the purchase and sale of debt instruments issued by third-parties (FGN Treasury Bills and Bonds, FGN Savings Bond, State/Local Government Bonds, Eurobonds, Supranational bonds, Eurobonds, Sukuk, etc.)

Margin Loan

We offer credit facilities, at competitive rates, that are backed by equities as collateral for clients looking to leverage their portfolios and magnify their returns.

Financial Advisory

We, along with our esteemed Capital Management team, provide financial advisory services tailor- made to suit each unique client.

We understand and respond to the demands presented by such deals, at the same time, achieving exceptional results through disciplined and collaborative processes while making sure our clients’ objectives are achieved.

Our services broadly include:

  • Business assessment, valuation and analysis
  • Deal financing (equity & debt financing)
  • Buyouts (stock or asset sales)
  • Mergers and Acquisition
  • Establishing regulatory processes
  • Execution & Management of deals/transactional processes to its seamless closure

Important Notice:

Please be informed that we have relocated our head office from 37, Karimu Kotun Street, Victoria Island, Lagos to 37, Kofo Abayomi Street, Victoria Island.

We have also moved our Ilorin branch office from, Kwara Hotel Premises, Ahmadu Bello Way GRA, Ilorin to No. 14, Station Road, City of Refuge, along Waterview Road, GRA, Ilorin, Kwara State.