Who owns Silver Oak Casino has a clear answer on the casino’s own site: its terms name Primrose Media Limited, registration number 15804, based in Mutsamudu on the Autonomous Island of Anjouan. That makes Silver Oak the only one of our seven partners to publish its operator and license. Here is what that disclosure does and doesn’t tell you.
Silver Oak’s terms name Primrose Media Limited (registration 15804), Anjouan, Union of Comoros.
The license is from Anjouan under the Computer Gaming Licensing Act 007 of 2005; no number is shown.
The same company appears on the terms of Raging Bull Slots and CoolCat Casino.
Michigan’s gaming regulator named Silver Oak in its April 9, 2025 cease-and-desist release.
An Anjouan license is not a US license, and no US state regulates Silver Oak.
Operator
Primrose Media Limited
Registration
No. 15804, Anjouan
License
Anjouan, Act 007 of 2005
License number
Not shown
Software
Realtime Gaming (RTG)
Michigan action
April 9, 2025
Who owns Silver Oak Casino: Primrose Media Limited
Silver Oak Casino is run by Primrose Media Limited, according to the casino’s own terms and conditions (opens in a new tab). The terms give the company’s registration number (15804) and an address in Hamchako, Mutsamudu, on the Autonomous Island of Anjouan in the Union of Comoros.
That is more than most offshore casinos publish. Among our partners, SlotoCash, Miami Club, Decode, Planet 7, Royal Ace and Slot Madness show no operator on their own pages. Silver Oak is the exception, which makes its ownership the easiest to check. For everything else about the casino, see our Silver Oak Casino review.
Silver Oak ownership details at a glance
Item
What is published
Source type
Operating company
Primrose Media Limited
Casino’s terms
Registration number
15804
Casino’s terms
Registered address
Hamchako, Mutsamudu, Anjouan, Union of Comoros
Casino’s terms
License
State of Anjouan, Computer Gaming Licensing Act 007 of 2005
Casino’s terms
License number
Not shown
Casino’s terms
Governing law
Anjouan
Casino’s terms
Owner per a major review site
Primrose Media Limited
Third-party
What is known about Primrose Media Limited
Primrose Media is not a one-casino company. The terms pages of Raging Bull Slots and CoolCat Casino name the same company, the same registration number 15804 and the same Mutsamudu address. Those are first-party statements, so the shared operator is on firm ground.
Raging Bull’s terms go a step further than Silver Oak’s and print an Anjouan license number. Silver Oak’s terms cite the license law but no number. Beyond that, Primrose Media’s directors, shareholders and accounts are not published on any of these sites.
Third-party reviewers also attach Primrose Media to two more of our partners. One major review site lists it as the operator of Royal Ace and Slot Madness, and another review of Slot Madness says the same. Other reviewers name different companies for both, so those two links are reported, not settled.
Silver Oak’s Anjouan license explained
According to its terms, Silver Oak is licensed in the State of Anjouan under the Computer Gaming Licensing Act 007 of 2005, with Anjouan as the governing law. Its FAQ says the casino is “completely licensed” without naming an authority. One large third-party review site lists “No license” and mentions Costa Rica in its write-up, so sources don’t fully agree.
Anjouan gaming licenses are issued under local law. Our Anjouan license guide explains how these licenses work and what complaint routes exist. The short version for US players: an Anjouan license is not a US state license and gives you no access to a US regulator.
Silver Oak’s restricted-country list includes the Comoros itself, along with the UK, France, Germany, Australia and others. It lists no US states.
Silver Oak sister casinos and the wider network
Ownership questions usually lead to a second one: which other casinos share the same company? The answer depends on whether you rely on first-party terms or reviewers.
Casinos linked to Silver Oak’s operator
Casino
Link to Primrose Media
Source type
Raging Bull Slots
Named in its terms (reg. 15804)
Casino’s own site
CoolCat Casino
Named in its terms (reg. 15804)
Casino’s own site
Slot Madness
Named as operator by two review sites
Third-party
Royal Ace
Named as operator by one review site
Third-party
Planet 7
Listed as a sister casino; owner given as Ace Revenue Group
Third-party
A long-running player forum thread also groups Silver Oak, Royal Ace, Planet 7 and Slot Madness as sister brands. Silver Oak, Planet 7, Royal Ace and Slot Madness all run RealTime Gaming games, which partly explains why they look alike. Our Silver Oak vs Planet 7 comparison shows how two of them differ in practice.
Silver Oak vs other Primrose Media casinos
Three casinos name Primrose Media Limited and registration number 15804 in their own terms: Silver Oak, Raging Bull Slots and CoolCat Casino. Their published rules are similar, though not identical, as the table shows.
Primrose Media casinos compared, from their own terms
Item
Silver Oak
Raging Bull Slots
CoolCat Casino
Anjouan license number shown
No
Yes
No
Payout process in terms
7–10 business days review, then 7–10 business days payment
7–10 business days review, then 7–10 business days payment
7–10 business days review, then 7–10 business days payment
US states excluded
None listed
None listed
None listed
Michigan release
April 9, 2025
October 8, 2026
Not named
The shared payout wording is the strongest sign of one back office: the same two-stage review and payment window appears in all three sets of terms. If you already know how Raging Bull Slots handles cashouts, expect Silver Oak to work the same way. Our Silver Oak vs Raging Bull Slots comparison goes further on bonuses and banking.
Michigan’s April 9, 2025 action against Silver Oak
On April 9, 2025, the Michigan Gaming Control Board announced cease-and-desist letters to 13 unlicensed offshore operators, and its April 2025 release (opens in a new tab) names Silver Oak Casino. Planet 7 Casino appears in the same release. The board describes these as illegal offshore operators targeting Michigan residents.
What Primrose Media’s terms mean for Silver Oak withdrawals
A named operator doesn’t change the rules; the terms do. The terms set out a slow, capped payout process:
Weekly withdrawals from $2,500, raised by VIP level.
A monthly limit of $5,000 if your balance is at least 10 times your total deposits, otherwise $10,000.
An 8% fee (minimum $4) if a deposit wasn’t wagered at least once.
Review of 7–10 business days, then payment of 7–10 business days.
Disputes within 3 days of the wager, with replies within 28 days, through a Central Dispute System run by the software provider.
Third-party reviews add complaints about slow payments, including a top review site’s warning that payouts usually take more than a month. Our Silver Oak withdrawals page and our guide to weekly withdrawal limits put those numbers in context.
How to confirm Silver Oak’s owner yourself
Open Silver Oak’s terms and conditions and find the opening clause that names the operator.
Note the company name, registration number 15804 and the Anjouan address.
Look for a license number; Silver Oak cites the law but shows none.
Compare the operator line with the terms of any sister casino you also use.
Search the Michigan Gaming Control Board’s releases, or your own state regulator’s, for the brand.
Save a copy of the terms with the date, since the operator line can change.
Is Silver Oak Casino legal in the US?
No US state licenses Silver Oak. Real-money online casinos are state-licensed only in New Jersey, Pennsylvania, Michigan, West Virginia, Delaware, Connecticut and Rhode Island, and Silver Oak is not among the operators those states approve.
State law decides the position for players, and it varies. Federal UIGEA targets payment processing for unlawful internet gambling rather than making a bet a federal crime for the player. Start with our page on offshore casino legality, then check your state in our states hub. More quick answers live in our casino questions section.
Silver Oak and reported Primrose sister casinos via our links
This page is about Silver Oak’s owner, so the offers below are Silver Oak and two casinos some reviewers tie to the same company. All three are offshore casinos, not licensed by any US state; check your state’s law before you play. We earn a commission when you join through our links, and partners appear in a commercial order. Gambling costs money, and losses are likely over time.
Silver Oak Casino: $2,500 Welcome Bonus + 50 Free Spins, via our link (new players, 21+ or 18+ where allowed, terms apply). The casino’s own site advertises a different package, $10,000 as a 100% match on each of the first ten deposits with no free spins, and its pages conflict on wagering: 30x on the offer page versus 40x for slots in the terms, with 60x on table games and video poker. Deposits start at $30, the offer page says there is no max withdrawal, and the terms shown at sign-up apply.
Slot Madness Casino: $2,500 Welcome Bonus + 50 Free Spins, via our link (new players, 21+ or 18+ where allowed, terms apply). Third-party reviews report a 275% match up to $2,750 with a $30 minimum and 30x (bonus + deposit) on slots.
Royal Ace Casino: $2,500 Welcome Bonus + 35 Free Spins, via our link (new players, 21+ or 18+ where allowed, terms apply). Third-party reviews report 30x (bonus + deposit) on slots and a max cashout of 10 times the deposit.
All three bonuses are slot-focused, and table games are often excluded or weighted lower. Need support? Call or text 1-800-MY-RESET (1-800-697-3738).
Ad21+ (18+ where allowed). Ranked by us in a commercial order; we earn commission from these links. Advertiser disclosure
Silver Oak is the subject of this page; Slot Madness and Royal Ace are reported by some reviewers as Primrose Media brands. All are offshore and not licensed by any US state.
Silver Oak Casino#4 on our listBonus on 10 deposits
Published terms (casino terms): Silver Oak advertises a 100% match on each of its first ten deposits (up to $10,000 in total) with codes SILVEROAK1–10. Eligible games: Slots, keno, scratch cards (table games at 60x; many games excluded).
Who runs it: Primrose Media Limited, licensed in Anjouan (its terms). Regulator notes: Named in a Michigan Gaming Control Board cease-and-desist release, April 9, 2025.
21+ (18+ where allowed). New players. Min deposit $30. Wagering 30x on the offer page; 40x in the terms. Max cashout: None stated. Withdrawal cap From $2,500 / week. Terms source: casino terms. Terms apply. Offer checked October 28, 2026.
Published terms (reported): Third-party reviews report a 275% match up to $2,750 with code MAD275; the casino site could not be checked directly. Eligible games: Slots and keno (reported).
Who runs it: License not shown; third parties report Anjouan, Costa Rica or none. Regulator notes: Named in a Michigan Gaming Control Board cease-and-desist release, August 14, 2025.
21+ (18+ where allowed). New players. Min deposit $30 (reported). Wagering 30x deposit + bonus (reported). Max cashout: None (reported). Withdrawal cap $2,500 / week (reported). Terms source: reported. Terms apply. Offer checked October 28, 2026.
Royal Ace Casino#6 on our listSlots and specialty games
Published terms (reported): Third-party reviews disagree on the package (200% up to $4,000, or 250% up to $2,500 + 35 spins); the casino site could not be checked directly. Eligible games: Slots and specialty games (reported).
Who runs it: License not shown; third parties report Costa Rica or none. Regulator notes: Third parties report it does not accept Ohio players.
21+ (18+ where allowed). New players. Min deposit $30 (reported). Wagering 30x deposit + bonus on slots (reported). Max cashout: 10x deposit (reported). Withdrawal cap $2,500 / week (reported). Terms source: reported. Terms apply. Offer checked October 28, 2026.
These casinos are offshore operators. They are not licensed or regulated by any US state, and state consumer protections do not apply. Check the law in your state before you play. Terms marked “reported” come from third-party reviews; the terms shown at sign-up apply.
21+ (18+ where allowed). Every casino game has a built-in house edge, so over time you should expect to lose what you stake. Set a budget before you play and stop when it’s gone: responsible gambling tools and free help. Gambling problem? Call or text 1-800-MY-RESET (1-800-697-3738).
Frequently asked questions
Who is the parent company of Silver Oak Casino?
Primrose Media Limited is the operator named in Silver Oak’s terms, with registration number 15804 and an address in Mutsamudu, Anjouan, Union of Comoros. No separate parent company is published above it. The same company appears on the terms of Raging Bull Slots and CoolCat Casino, so it runs at least three casinos. Our Silver Oak review covers how the casino performs on bonuses, banking and support.
Where is Silver Oak Casino based?
Silver Oak’s operator is registered in Hamchako, Mutsamudu, on the Autonomous Island of Anjouan in the Union of Comoros, according to its terms. Anjouan law governs the terms. One review site mentions Costa Rica in its write-up, which conflicts with the casino’s own statement, so rely on the terms. The casino is not based in the US and holds no US license. Our Anjouan license guide explains the jurisdiction.
Does Silver Oak have a gaming license?
Silver Oak’s terms say it is licensed in the State of Anjouan under the Computer Gaming Licensing Act 007 of 2005, but they show no license number. Its FAQ calls it completely licensed without naming the authority, and one large review site lists no license at all. Without a number, you can’t check a register directly. Our page what is an Anjouan license covers what that license means.
What casinos are sister sites of Silver Oak?
Raging Bull Slots and CoolCat Casino share Silver Oak’s operator, Primrose Media Limited, according to their own terms. Reviewers also name Primrose Media as the operator of Slot Madness and Royal Ace, and group Planet 7 with Silver Oak as a sister casino, though other reviewers give different owners for those three. All of them run RTG games. Compare two of them in our Silver Oak vs Slot Madness page.
Has Michigan taken action against Silver Oak Casino?
Yes, the Michigan Gaming Control Board named Silver Oak Casino in its April 9, 2025 release about cease-and-desist letters to 13 unlicensed offshore operators. Planet 7 Casino was in the same release, and Primrose Media’s Raging Bull Slots was named on October 8, 2026. The board calls these illegal offshore operators in Michigan. Read more on our cease-and-desist letters page.
Does a named owner make Silver Oak Casino legit?
Silver Oak is more transparent than most offshore casinos because it names its operator and license law, but transparency is not the same as protection. Third-party reviews give it very low ratings and report slow payments, and Michigan has named it in a cease-and-desist release. Its terms include caps and fees worth reading first. Our is Silver Oak legit page weighs the evidence in more depth.
Does knowing the owner help if a Silver Oak withdrawal is delayed?
It helps a little, because you know which company you are dealing with and which law applies, but it does not give you a US complaint route. Its terms require disputes within 3 days of the wager and promise replies within 28 days through a dispute system run by the software provider. Keep records of every message. Our guide on casino withdrawal delays explains what to do next.
Who makes the games at Silver Oak Casino?
Silver Oak’s mobile casino page names Realtime Gaming (RTG) as its software provider, and one review site adds Spinlogic Gaming, the brand RTG adopted in 2022. The game developer is a separate company from the operator, Primrose Media. The casino’s mobile page names titles such as Magic Mushroom, T-Rex II and Cash Bandits 3. See our Silver Oak slots page for more on the lobby.
Is Silver Oak Casino owned by Deckmedia?
No, nothing on record ties Silver Oak to Deckmedia. Silver Oak’s own terms name Primrose Media Limited, registration number 15804, in Mutsamudu, Anjouan. Deckmedia N.V. is the company reviewers widely link to two other partners, SlotoCash and Miami Club, neither of which names an operator on its own site. The confusion is understandable because many offshore brands look alike, but Silver Oak’s operator line settles it. See who owns SlotoCash for the Deckmedia side, or our Silver Oak review for the casino itself.
When was Silver Oak Casino founded?
Silver Oak doesn’t publish a launch year, and none is on record from a source we can cite. Its terms name today’s operator, Primrose Media Limited, but they don’t say when that company took over or whether anyone ran the brand before it. That is a gap worth knowing, because a founding date and ownership history help you judge a track record. What is on record instead is recent: Michigan named Silver Oak on April 9, 2025. Our is Silver Oak legit page weighs the record that does exist.
Which countries does Silver Oak’s owner refuse players from?
Silver Oak’s terms bar players from a list that includes Afghanistan, Australia, Austria, Belgium, France, Germany, the Netherlands, New Zealand, Russia, Spain, Switzerland, Türkiye, the Comoros and the UK. They also exclude FATF-blacklisted countries and anywhere the Anjouan Offshore Financial Authority bars, and say the list is partial. No US state is listed, and the minimum age is 21. That isn’t a statement that play is legal where you live. Check your state in our states hub and read about offshore casino legality.
What documents does Silver Oak’s operator ask for?
Silver Oak’s terms ask for a government photo ID, the front and back of any card used in the last three months, a selfie holding your ID and a utility bill dated within three months. Withdrawals stay blocked until that check is complete, so it is worth sending the documents before your first cashout request. Use the documents email the casino lists rather than live chat attachments. Our Silver Oak verification page covers the process step by step.
Does Silver Oak’s operator charge withdrawal fees?
Yes, Silver Oak’s banking page lists method fees, and its terms add a penalty fee. Bitcoin withdrawals cost $0 to $40, bank wires $0 to $20, checks $0 to $25 and Coindraw 5%. On top of that, the terms charge 8% (minimum $4) if a deposit wasn’t wagered at least once. On a $1,000 withdrawal of an unplayed deposit, that is $80 before the method fee. Our page on casino withdrawal fees compares how other casinos charge.
What happens to an inactive Silver Oak Casino account?
Silver Oak’s terms treat an account as inactive after two years and say it may be deleted after an email notice. They don’t spell out what happens to a remaining balance, so don’t leave money sitting in a dormant account. If you plan to stop playing, withdraw your balance first, within the weekly cap, then ask support in writing to close the account. Our guide to casino dormant accounts and our page on closing a casino account explain the steps.
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