diff --git a/packages/wdio-browserstack-service/src/constants.ts b/packages/wdio-browserstack-service/src/constants.ts
index 0ce42ffc34b..d234111b5eb 100644
--- a/packages/wdio-browserstack-service/src/constants.ts
+++ b/packages/wdio-browserstack-service/src/constants.ts
@@ -76,6 +76,20 @@ export const EDS_URL = 'https://eds.browserstack.com'
 
 export const SUPPORTED_BROWSERS_FOR_AI = ['chrome', 'microsoftedge', 'firefox']
 
+export const SUPPORTED_BROWSERS_FOR_ACCESSIBILITY = ['chrome', 'chromefortesting', 'safari']
+
+export const MIN_BROWSER_VERSIONS_A11Y = {
+    chrome: 95,
+    chromefortesting: 141,
+    safari: 18.4
+} as const
+
+export const MIN_BROWSER_VERSIONS_A11Y_NON_BSTACK = {
+    chrome: 100,
+    chromefortesting: 141,
+    safari: 18.4
+} as const
+
 export const TCG_URL = 'https://tcg.browserstack.com'
 
 export const TCG_INFO = {
diff --git a/packages/wdio-browserstack-service/src/util.ts b/packages/wdio-browserstack-service/src/util.ts
index c2e0c9c78dc..68f9d2d4975 100644
--- a/packages/wdio-browserstack-service/src/util.ts
+++ b/packages/wdio-browserstack-service/src/util.ts
@@ -41,7 +41,9 @@ import {
     APP_ALLY_ISSUES_SUMMARY_ENDPOINT,
     APP_ALLY_ISSUES_ENDPOINT,
     CLI_DEBUG_LOGS_FILE,
-    WDIO_NAMING_PREFIX
+    WDIO_NAMING_PREFIX,
+    MIN_BROWSER_VERSIONS_A11Y,
+    MIN_BROWSER_VERSIONS_A11Y_NON_BSTACK
 } from './constants.js'
 import CrashReporter from './crash-reporter.js'
 import { BStackLogger } from './bstackLogger.js'
@@ -479,20 +481,44 @@ export const validateCapsWithA11y = (deviceName?: any, platformMeta?: { [key: st
             return false
         }
 
-        if (platformMeta?.browser_name?.toLowerCase() !== 'chrome') {
-            BStackLogger.warn('Accessibility Automation will run only on Chrome browsers.')
-            return false
-        }
+        const browserName = platformMeta?.browser_name?.toLowerCase()
         const browserVersion = platformMeta?.browser_version
-        if (!isUndefined(browserVersion) && !(browserVersion === 'latest' || parseFloat(browserVersion + '') > 94)) {
-            BStackLogger.warn('Accessibility Automation will run only on Chrome browser version greater than 94.')
+
+        const validBrowsers = ['chrome', 'chromefortesting', 'safari']
+        if (!browserName || !validBrowsers.includes(browserName)) {
+            BStackLogger.warn(`Accessibility Automation supports Chrome 95+, Chrome for Testing 141+, and Safari 18.4+. Current browser: ${browserName}`)
             return false
         }
 
-        if (chromeOptions?.args?.includes('--headless')) {
-            BStackLogger.warn('Accessibility Automation will not run on legacy headless mode. Switch to new headless mode or avoid using headless mode.')
-            return false
+        if (browserName === 'chrome' || browserName === 'chromefortesting') {
+            const minVersion = MIN_BROWSER_VERSIONS_A11Y[browserName as keyof typeof MIN_BROWSER_VERSIONS_A11Y]
+            if (browserVersion && browserVersion !== 'latest') {
+                const version = parseInt(browserVersion.toString().split('.')[0] || '0', 10)
+                if (version < minVersion) {
+                    BStackLogger.warn(`Accessibility Automation requires ${browserName === 'chrome' ? 'Chrome' : 'Chrome for Testing'} version ${minVersion} or higher.`)
+                    return false
+                }
+            }
+
+            if (chromeOptions?.args?.includes('--headless')) {
+                BStackLogger.warn('Accessibility Automation will not run on legacy headless mode. Switch to new headless mode or avoid using headless mode.')
+                return false
+            }
+        }
+
+        // Safari validation
+        if (browserName === 'safari') {
+            if (browserVersion && browserVersion !== 'latest') {
+                const [currentMajor = 0, currentMinor = 0] = browserVersion.toString().split('.').map(Number)
+                const [requiredMajor = 0, requiredMinor = 0] = MIN_BROWSER_VERSIONS_A11Y.safari.toString().split('.').map(Number)
+
+                if (currentMajor < requiredMajor || (currentMajor === requiredMajor && currentMinor < requiredMinor)) {
+                    BStackLogger.warn(`Accessibility Automation requires Safari version ${MIN_BROWSER_VERSIONS_A11Y.safari} or higher.`)
+                    return false
+                }
+            }
         }
+
         return true
     } catch (error) {
         BStackLogger.debug(`Exception in checking capabilities compatibility with Accessibility. Error: ${error}`)
@@ -500,18 +526,47 @@ export const validateCapsWithA11y = (deviceName?: any, platformMeta?: { [key: st
     return false
 }
 
-export const validateCapsWithNonBstackA11y = (browserName?: string | undefined, browserVersion?: string | undefined) => {
+export const validateCapsWithNonBstackA11y = (browserName?: string | undefined, browserVersion?:string | undefined)  => {
+    try {
+        const browser = browserName?.toLowerCase()
 
-    if (browserName?.toLowerCase() !== 'chrome') {
-        BStackLogger.warn('Accessibility Automation will run only on Chrome browsers.')
-        return false
-    }
-    if (!isUndefined(browserVersion) && !(browserVersion === 'latest' || parseFloat(browserVersion + '') > 100)) {
-        BStackLogger.warn('Accessibility Automation will run only on Chrome browser version greater than 100.')
-        return false
-    }
-    return true
+        // Support Chrome, Chrome for Testing (ChromeForTesting), and Safari on non-BrowserStack infrastructure
+        const validBrowsers = ['chrome', 'chromefortesting', 'safari']
+        if (!browser || !validBrowsers.includes(browser)) {
+            BStackLogger.warn('Accessibility Automation on non-BrowserStack infrastructure supports Chrome 100+, Chrome for Testing 141+, and Safari 18.4+.')
+            return false
+        }
+
+        // Chrome/Chrome for Testing validation
+        if (browser === 'chrome' || browser === 'chromefortesting') {
+            const minVersion = MIN_BROWSER_VERSIONS_A11Y_NON_BSTACK[browser as keyof typeof MIN_BROWSER_VERSIONS_A11Y_NON_BSTACK]
+            if (browserVersion && browserVersion !== 'latest') {
+                const version = parseInt(browserVersion.toString().split('.')[0] || '0', 10)
+                if (version < minVersion) {
+                    BStackLogger.warn(`Accessibility Automation requires ${browser === 'chrome' ? 'Chrome' : 'Chrome for Testing'} version ${minVersion}+ on non-BrowserStack infrastructure.`)
+                    return false
+                }
+            }
+        }
+
+        // Safari validation
+        if (browser === 'safari') {
+            if (browserVersion && browserVersion !== 'latest') {
+                const [currentMajor = 0, currentMinor = 0] = browserVersion.toString().split('.').map(Number)
+                const [requiredMajor = 0, requiredMinor = 0] = MIN_BROWSER_VERSIONS_A11Y_NON_BSTACK.safari.toString().split('.').map(Number)
 
+                if (currentMajor < requiredMajor || (currentMajor === requiredMajor && currentMinor < requiredMinor)) {
+                    BStackLogger.warn(`Accessibility Automation requires Safari version ${MIN_BROWSER_VERSIONS_A11Y_NON_BSTACK.safari}+ on non-BrowserStack infrastructure.`)
+                    return false
+                }
+            }
+        }
+
+        return true
+    } catch (error) {
+        BStackLogger.debug(`Exception in checking capabilities compatibility with Accessibility. Error: ${error}`)
+    }
+    return false
 }
 
 export const shouldScanTestForAccessibility = (suiteTitle: string | undefined, testTitle: string, accessibilityOptions?: { [key: string]: string; }, world?: { [key: string]: unknown; }, isCucumber?: boolean) => {
diff --git a/packages/wdio-browserstack-service/tests/util.test.ts b/packages/wdio-browserstack-service/tests/util.test.ts
index 28edc4acc5a..17d102c4a34 100644
--- a/packages/wdio-browserstack-service/tests/util.test.ts
+++ b/packages/wdio-browserstack-service/tests/util.test.ts
@@ -1153,17 +1153,17 @@ describe('validateCapsWithA11y', () => {
             .toContain('Accessibility Automation will run only on Desktop browsers.')
     })
 
-    it('returns false if browser is not chrome', async () => {
+    it('returns false if browser is not supported', async () => {
         const platformMeta = {
-            'browser_name': 'safari'
+            'browser_name': 'firefox'
         }
 
         expect(validateCapsWithA11y(undefined, platformMeta)).toEqual(false)
         expect(logInfoMock.mock.calls[0][0])
-            .toContain('Accessibility Automation will run only on Chrome browsers.')
+            .toContain('Accessibility Automation supports Chrome 95+, Chrome for Testing 141+, and Safari 18.4+')
     })
 
-    it('returns false if browser version is lesser than 94', async () => {
+    it('returns false if browser version is lesser than 95', async () => {
         const platformMeta = {
             'browser_name': 'chrome',
             'browser_version': '90'
@@ -1171,7 +1171,7 @@ describe('validateCapsWithA11y', () => {
 
         expect(validateCapsWithA11y(undefined, platformMeta)).toEqual(false)
         expect(logInfoMock.mock.calls[0][0])
-            .toContain('Accessibility Automation will run only on Chrome browser version greater than 94.')
+            .toContain('Accessibility Automation requires Chrome version 95 or higher')
     })
 
     it('returns false if browser version is lesser than 94', async () => {
@@ -1197,6 +1197,50 @@ describe('validateCapsWithA11y', () => {
 
         expect(validateCapsWithA11y(undefined, platformMeta, chromeOptions)).toEqual(true)
     })
+
+    it('returns true for Safari 18.4+', async () => {
+        const platformMeta = {
+            'browser_name': 'safari',
+            'browser_version': '18.4'
+        }
+        expect(validateCapsWithA11y(undefined, platformMeta)).toEqual(true)
+    })
+
+    it('returns true for Safari latest', async () => {
+        const platformMeta = {
+            'browser_name': 'safari',
+            'browser_version': 'latest'
+        }
+        expect(validateCapsWithA11y(undefined, platformMeta)).toEqual(true)
+    })
+
+    it('returns false for Safari < 18.4', async () => {
+        const platformMeta = {
+            'browser_name': 'safari',
+            'browser_version': '16.0'
+        }
+        expect(validateCapsWithA11y(undefined, platformMeta)).toEqual(false)
+        expect(logInfoMock.mock.calls[0][0])
+            .toContain('Safari version 18.4 or higher')
+    })
+
+    it('returns true for ChromeForTesting 141+', async () => {
+        const platformMeta = {
+            'browser_name': 'ChromeForTesting',
+            'browser_version': '141'
+        }
+        expect(validateCapsWithA11y(undefined, platformMeta)).toEqual(true)
+    })
+
+    it('returns false for ChromeForTesting < 141', async () => {
+        const platformMeta = {
+            'browser_name': 'ChromeForTesting',
+            'browser_version': '140'
+        }
+        expect(validateCapsWithA11y(undefined, platformMeta)).toEqual(false)
+        expect(logInfoMock.mock.calls[0][0])
+            .toContain('Accessibility Automation requires Chrome for Testing version 141 or higher')
+    })
 })
 
 describe('validateCapsWithNonBstackA11y', () => {
@@ -1205,14 +1249,38 @@ describe('validateCapsWithNonBstackA11y', () => {
         logInfoMock = vi.spyOn(log, 'warn')
     })
 
-    it('returns false if browser is not chrome', async () => {
+    it('returns true for safari 18.4+', async () => {
+        expect(validateCapsWithNonBstackA11y('safari', '18.4')).toEqual(true)
+    })
+
+    it('returns true for safari latest', async () => {
+        expect(validateCapsWithNonBstackA11y('safari', 'latest')).toEqual(true)
+    })
+
+    it('returns false for safari < 18.4', async () => {
+        expect(validateCapsWithNonBstackA11y('safari', '16.0')).toEqual(false)
+        expect(logInfoMock.mock.calls[0][0])
+            .toContain('Safari version 18.4+')
+    })
+
+    it('returns true for ChromeForTesting 141+', async () => {
+        expect(validateCapsWithNonBstackA11y('ChromeForTesting', '141')).toEqual(true)
+    })
+
+    it('returns false for ChromeForTesting < 141', async () => {
+        expect(validateCapsWithNonBstackA11y('ChromeForTesting', '140')).toEqual(false)
+        expect(logInfoMock.mock.calls[0][0])
+            .toContain('Accessibility Automation requires Chrome for Testing version 141+')
+    })
+
+    it('returns false if browser is not supported', async () => {
 
-        const browserName = 'safari'
+        const browserName = 'firefox'
         const browserVersion = 'latest'
 
         expect(validateCapsWithNonBstackA11y(browserName, browserVersion)).toEqual(false)
         expect(logInfoMock.mock.calls[0][0])
-            .toContain('Accessibility Automation will run only on Chrome browsers.')
+            .toContain('Accessibility Automation on non-BrowserStack infrastructure supports Chrome 100+, Chrome for Testing 141+, and Safari 18.4+')
     })
 
     it('returns false if browser version is lesser than 100', async () => {
@@ -1222,7 +1290,7 @@ describe('validateCapsWithNonBstackA11y', () => {
 
         expect(validateCapsWithNonBstackA11y(browserName, browserVersion)).toEqual(false)
         expect(logInfoMock.mock.calls[0][0])
-            .toContain('Accessibility Automation will run only on Chrome browser version greater than 100.')
+            .toContain('Accessibility Automation requires Chrome version 100+')
     })
 
     it('returns true if validation done', async () => {