Project Database

Year

Field

February 2025 – August 2026
Business, Entrepreneurship and Technology

Clean rivers and healthy urban environment
Terra Pulse LTD.

BGN 25,000

This grant provides funding for a project addressing river pollution through real-time monitoring of water quality and identifying pollution sources. The project was selected through the Science with a Future Request for Proposals.

Back to All

We are performing technical maintenance on our website and the project database will not be accessible until 4 pm today.

Optimism
for Bulgaria

Mihail Milchev, Bdintex: Close to His Roots, Eyes on the Future

May 18, 2026

Two Tables of Memory – the New Heart of Vidin’s Synagogue

May 17, 2026

Manage Consent Preferences

Because we respect your right to privacy, you can choose not to allow some types of cookies. Click on the different category headings to find out more and change our default settings. However, blocking some types of cookies may impact your experience of the site and the services we are able to offer. For more information see our Cookies policy.

Strictly necessary cookies

Always Enabled

These cookies are essential and necessary for the website to function properly and ensure its security features. These cannot be switched off in our systems. They do not store any personally identifiable information.

Cookie	Duration	Description
cookielawinfo-checkbox-advertisement	1 year	This cookie is used to record the user consent for the cookies in the category “Marketing”.
cookielawinfo-checkbox-analytics	1 year	The cookie is used to store the user consent for the cookies in the category “Analytics”.
cookielawinfo-checkbox-functional	1 year	The cookie is set to record the user consent for the cookies in the category “Functional”.
cookielawinfo-checkbox-necessary	1 year	The cookie is used to store the user consent for the cookies in the category “Necessary”.
CookieLawInfoConsent	1 year	Records the default button state of the corresponding category. It works only in coordination with the primary cookie.
elementor	Persistent	Allows the website owner to implement or change the website's content in real-time.
History.store	session	It's a plugin that lets manage the browser history and cross-browser compatibility. Contains a visitor ID to track their navigation on the website for its optimization. Also, it supports the work of project database page of the website.
viewed_cookie_policy	1 year	The cookie is used to store whether the user has consented to the use of cookies. It does not store any personal data.
wp-wpml_current_language	session	This cookie designates the country code based on user's IP address and determines the visitor language. It is enabled by default on sites that use the language filtering for AJAX operations feature.

Functional cookies

These cookies enable the website to provide enhanced functionality and personalization, to remember information that changes the way it behaves or looks, such as your preferred language or the region that you are in. Disabling of these may result in improper functionality and setting of the website.

Cookie	Duration	Description
__cf_bm	30 minutes	This cookie supports Cloudflare Bot Management to protect the website from bad bots. The cookie does not collect any personal data or track the user across sites.
_cfuvid	Session	This cookie is set when a site uses this option in a Rate Limiting Rule, and is only used to allow the Cloudflare WAF to distinguish individual users who share the same IP address.
cf_clearance	1 year	Clearance Cookie stores the proof of challenge passed. It is used to no longer issue a challenge if present. It is required to reach an origin server.
sentryReplaySession	Session	Used to monitor errors and diagnose technical problems during a user session.
yt-remote-cast-installed	Session	This cookie is used to store the user's video player preferences using embedded YouTube video.
yt-remote-fast-check-period	Session	This cookie is used by YouTube to store the user's video player preferences for embedded YouTube videos.
yt-remote-session-app	Session	This cookie is used by YouTube to store user preferences and information about the interface of the embedded YouTube video player.
yt-remote-session-name	Session	This cookie is used by YouTube to store the user's video player preferences using embedded YouTube video.
ytidb::LAST_RESULT_ENTRY_KEY	Persistent	This cookie is used by YouTube to store the last search result entry that was clicked by the user. This information is used to improve the user experience by providing more relevant search results in the future.

Analytics cookies

These cookies allow us to count visits and traffic sources so we can measure and improve the performance of our website. They help us to know which pages are the most/least popular and see how visitors use and interact with the site. If disabled, we will not be able to monitor the site’s performance which may result in poorly-designed content and slow site performance. The cookies are stored on your browser only with your consent and collect information in a way that does not directly identify you.

Cookie	Duration	Description
_ga	1 year, 1 month, 4 days	The cookie of GA4, calculates visitor, session, and campaign data and also keeps track of site usage for the site’s analytics report. It stores information anonymously and assigns a randomly generated unique ID number to recognize unique visitors and is used to generate statistical data on how visitor uses the site.
_ga_*	1 year, 1 month, 4 days	Google Analytics sets this cookie to store and count page views.
_ga_	24 months	Used to persist session state.
_gat	1 day	Used by Google Analytics to throttle request rate. This cookie does not store any user information, it is used to limit the number of requests that have to be made to the site.
_gat_UA-89039721-1	1 minute	A variation of the _gat cookie set by Google Analytics and Google Tag Manager to allow website owners to track visitor behavior and measure site performance. The pattern element in the name contains the unique identity number of the account or website it relates to.
_gcl_au	3 months	Google Tag Manager sets the cookie to experiment advertisement efficiency of websites using their services.
_gid	1 day	Installed by Google Analytics, this cookie stores information on how visitors use the website while also creating an analytics report of the website’s performance. Some of the data collected include the number of visitors, their source, and the pages they visit anonymously.
_hjCookieTest	Session	The cookie checks to see if the Hotjar Tracking Code can use cookies. If it can, a value of 1 is set. It is deleted almost immediately after it is created.
_hjHasCachedUserAttributes	Session	The cookie enables us to know whether the data set in the below_hjUserAttributes Local Storage item is up to date or not.
_hjLocalStorageTest	Session	The local storage item checks if the Hotjar Tracking Code can use Local Storage. If it can, a value of 1 is set. Data stored in _hjLocalStorageTest has no expiration time, but it is deleted almost immediately after it has been created.
_hjSession_{site_id}	Session	Holds current session data and ensures subsequent requests in the session window are attributed to the same session. It has 30-minute duration, extended on user activity.
_hjSessionStorageTest	Session	This checks if the Hotjar Tracking Code can use Session Storage. If it can, a value of 1 is set. The data stored in _hjSessionStorageTest has no expiration time, but it is deleted almost immediately after it has been created.
_hjSessionUser_{site_id}	365 days	This cookie is set when a user first lands on a page. It persists the Hotjar User ID which is unique to that site and ensures data from subsequent visits to the same site are attributed to the same user ID.
_hjTLDTest	Session	This cookie enables us to try to determine the most generic cookie path to use, instead of page hostname. It means that cookies can be shared across subdomains (where applicable). After this check, the cookie is removed.
_hjUserAttributes	No explicit expiration	Local storage item that stores User Attributes sent through the Hotjar Identify API.
_hjUserAttributesHash	2 min. extended every 30 sec.	The cookie enables us to know when any User Attribute has changed and needs to be updated.
CONSENT	2 years	YouTube sets this cookie via embedded YouTube-videos and registers anonymous statistical data.
hjActiveViewportIds	No explicit expiration	Local storage item that stores user active viewports IDs. Stores an expiration Timestamp that is used to validate active viewports on script initialization.
hjViewportId	Session	Session storage item that stores user viewport details such as size and dimensions.
sp_t	Couple of months to a year	This cookie enables us to try to determine the most generic cookie path to use, instead of page hostname. It means that cookies can be shared across subdomains (where applicable). Used to create a unique user identifier that allows analysis of usage and interaction with embedded Spotify content.
vuid	1 year, 1 month, 4 days	Vimeo installs this cookie to collect tracking information by setting a unique ID to embed videos to the website.

Marketing cookies

These cookies are used to track visitors across websites and collect information aiming to display customized ads and marketing campaigns that are relevant and engaging for the individual user. If you do not allow these cookies, you will still see basic advertising on your browser that is not relevant to you.

Cookie	Duration	Description
_fbp	3 months	This cookie is set by Facebook to display advertisements when either on Facebook or on a digital platform powered by Facebook advertising, after visiting the website.
ads/ga-audiences	session	Used by Google AdWords to re-engage visitors that are likely to convert to customers based on the visitor’s online behavior across websites.
datr	2 years	The purpose of the cookie is to identify the web browser being used to connect to Facebook independent of the logged in user. This cookie plays a key role in Facebook’s security and site integrity features.
fr	3 months	Facebook sets this cookie to show relevant advertisements to users by tracking user behavior across the web, on sites that have Facebook pixel or Facebook social plugin.
NID	13 months	These cookies are used by Google to display personalized advertisements on Google sites based on recent searches and previous interactions, and to limit the number of times the user sees an ad, to mute unwanted ads, and to measure the effectiveness of ads.
sp_landing	1 day	Tracks the source of the visit and affiliation with a specific marketing campaign.
tr	session	Used by Facebook to deliver a series of advertisement products such as real time bidding from third party advertisers.
VISITOR_INFO1_LIVE	5 months 27 days	A cookie set by YouTube to measure bandwidth that determines whether the user gets the new or old player interface.
VISITOR_PRIVACY_METADATA	6 months	YouTube sets this cookie to store the user's cookie consent state for the current domain.
YSC	session	YSC cookie is set by YouTube and is used to track the views of embedded videos on YouTube pages.
yt-remote-connected-devices	Persistent	YouTube sets this cookie to store the video preferences of the user using embedded YouTube video.
yt-remote-device-id	Persistent	YouTube sets this cookie to store the video preferences of the user using embedded YouTube video.
yt.innertube::nextId	Persistent	This cookie, set by YouTube, registers a unique ID to store data on what videos from YouTube the user has seen.
yt.innertube::requests	Persistent	This cookie, set by YouTube, registers a unique ID to store data on what videos from YouTube the user has seen.

Project Database

Project Database

Year / Area

Project and Organization Name

Amount

Optimism
for Bulgaria

Mihail Milchev, Bdintex: Close to His Roots, Eyes on the Future

Two Tables of Memory – the New Heart of Vidin’s Synagogue

WHAT'S NEW

WHO WE ARE

WHAT WE DO

WHAT WE DO

WANT TO BECOME
A VALUED PARTNER?

Project Database

Optimism for Bulgaria

Mihail Milchev, Bdintex: Close to His Roots, Eyes on the Future

Two Tables of Memory – the New Heart of Vidin’s Synagogue

WHAT'S NEW

WHO WE ARE

WHAT WE DO

WHAT WE DO

WANT TO BECOMEA VALUED PARTNER?

Optimism
for Bulgaria

WANT TO BECOME
A VALUED PARTNER?