Exhibit 99.5



Environmental
solutions worldwide, inc.



66,666,667 SHARES OF COMMON STOCK



ISSUABLE UPON EXERCISE OF SUBSCRIPTION RIGHTS



THE SUBSCRIPTION RIGHTS ARE EXERCISABLE UNTIL
5:00P.M. NEW YORK CITY TIME



ON [__], 2011, SUBJECT TO EXTENSION OR EARLIER
TERMINATION.

To Our Clients:



We are sending this letter to you because we
hold shares of Environmental Solutions Worldwide, Inc. (the “Company”) common stock, par value $0.001 per share
(the “Common Stock”) for you. The Company has commenced a rights offering of up to an aggregate of 66,666,667
shares of its Common Stock at a subscription price of $0.12 per share of Common Stock (the “Subscription Price”),
for up to an aggregate purchase price of $8.0 million in cash, or by the delivery to us by the holder of an equivalent amount of
principal and accrued and unpaid interest of indebtedness owed by us to such holder, or a combination thereof, pursuant to the
exercise of non-transferable subscription rights (the “Subscription Rights”) distributed to all holders of record
of shares of the Common Stock as of [__], 2011. The Subscription Rights are described in the Company’s prospectus, dated
May [__], 2011 (the “Prospectus”), and evidenced by a subscription certificate (the “Subscription Certificate”)
registered in your name or in the name of your nominee.



The Company has distributed one Subscription
Right for each share of Common Stock outstanding on [__], 2011. Each Subscription Right entitles the holder to purchase [0.51494]
shares of Common Stock at the Subscription Price (the “Basic Subscription Right”). Subject to the allocation
described below, each Subscription Right also grants the holder an oversubscription right to purchase additional shares of Common
Stock that are not purchased by other rights holders pursuant to their Basic Subscription Rights (the “Oversubscription
Right”). Holders are entitled to exercise their Oversubscription Right only if they exercise their Basic Subscription
Right in full. The Company will not issue fractional shares, but rather will round down the aggregate number of shares holders
are entitled to receive to the nearest whole number.



If you wish to exercise your Oversubscription
Right, you should indicate the number of additional shares that you would like to purchase in the space provided on the enclosed
Beneficial Owner Election Form. When you send in that form, you must also send the full purchase price, which shall be paid in
cash or by delivery by you of an equivalent amount of principal and accrued and unpaid interest of indebtedness owed by the Company
to you, or a combination thereof, for the number of additional shares that you have requested to purchase (in addition to the payment
due for shares purchased through your Basic Subscription Right). If an insufficient number of shares is available to fully satisfy
all Oversubscription Right requests, the available shares will be distributed proportionately among holders who exercise their
Oversubscription Right based on the number of shares each such holder subscribed for under the Basic Subscription Right. The subscription
agent will return any excess payments by mail without interest, or deduction, in the form in which made, or if made in a combination
of cash and indebtedness, in the form indicated, or if not indicated, Company indebtedness will be applied first, followed by cash,
promptly after the expiration of the subscription period. See“The Rights Offering—Subscription Rights—Oversubscription
Rights” in the Prospectus.



We are (or our nominee is) the holder of record
of Common Stock held by us for your account. We can exercise your Subscription Rights only if you instruct us to do so.



We request instructions as to whether you wish
to have us exercise the Subscription Rights relating to the Common Stock we hold on your behalf, upon the terms and conditions
set forth in the Prospectus. In addition, if you are a resident of Arizona, you expressly authorize us to advise the Company of
your state of residence in order to satisfy state securities law requirements under Arizona law.



We have enclosed your copy of the following
documents:



| | 1. | Letter to Shareholders from the Company;
| | -- | ----------------------------------------



| | 2. | Prospectus;
| | -- | -----------








| | 3. | Instructions for Use of Environmental Solutions Worldwide, Inc. Subscription Certificate (including Substitute Form W-9);
| | -- | -------------------------------------------------------------------------------------------------------------------------



| | 4. | Beneficial Owner Election Form; and
| | -- | -----------------------------------



| | 5. | Other Company Information.
| | -- | --------------------------



The Subscription Rights will expire if not exercised
by 5:00 p.m., New York City time, on [__], 2011, subject to extension or earlier termination (the “Expiration Date”).
Any Subscription Rights not exercised prior to the Expiration Date will expire and will have no value. Any subscription for shares
of Common Stock in the rights offering made hereby is irrevocable.



The materials enclosed are being forwarded to
you as the beneficial owner of Common Stock carried by us in your account but not registered in your name. Exercises of Subscription
Rights may be made only by us as the record owner and pursuant to your instructions. Accordingly, we request instructions as to
whether you wish us to elect to subscribe for any shares of Common Stock to which you are entitled pursuant to the terms and subject
to the conditions set forth in the Prospectus. However, we urge you to read the Prospectus and other enclosed materials carefully
before instructing us to exercise your Subscription Rights.



Your instructions to us should be forwarded
as promptly as possible in order to permit us to exercise Subscription Rights on your behalf in accordance with the provisions
of the rights offering.



If you wish to have us, on your behalf, exercise
the Subscription Rights for any shares of Common Stock to which you are entitled, please so instruct us by completing, executing
and returning to us the “Beneficial Owner Election Form” included herewith.



If you have any questions concerning the rights
offering, please contact us at Environmental Solutions Worldwide, Inc., 335 Connie Crescent, Concord, Ontario, Canada L4K 5R2 or
by telephone at (905) 695-4142.