Allison Costas
Round Rock Advisors · Wilton, Connecticut
Allison Costas is a fee-only financial advisor at Round Rock Advisors in Wilton, Connecticut. Allison focuses on estate & legacy planning, tax planning and retirement planning. Round Rock Advisors reports charging a percentage of assets and fixed fees on its Form ADV.
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Specialties
Facts
| Firm | Round Rock Advisors |
|---|---|
| Based in | Wilton, Connecticut |
| Fee model (firm's Form ADV) | Percentage of assets · Fixed fees |
| Accepting new clients | Yes |
| Assets under management | $906.7M across 1,935 accounts |
| SEC registration | Investment adviser representative in CT, NH · CRD 8139128 |
| Exams passed | Series 65 (2025) |
| Firm size | 22 employees |
| Disclosures | None reported |
| Website | roundrockadvisors.com |
How Allison's firm compares
- Round Rock Advisors's average account is about $469,000, from its Form ADV (assets managed divided by 1,935 accounts).
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Questions about Allison
Is Allison Costas a fee-only financial advisor?
Yes, according to SEC records as of October 29, 2026: Allison holds no broker registration, and Round Rock Advisors reports no commissions, no broker-dealer, and no insurance sales or affiliated insurance agency on its Form ADV.
How does Allison charge for financial advice?
Allison's firm, Round Rock Advisors, reports charging a percentage of assets and fixed fees on its SEC Form ADV.
Where is Allison Costas based?
Allison Costas is based in Wilton, Connecticut.
What does Allison specialize in?
Allison's specialties include estate & legacy planning, tax planning, retirement planning and family wealth transfer.
Is Allison Costas registered with the SEC?
Yes. Allison Costas is registered as an investment adviser representative in CT and NH (CRD 8139128), per SEC Investment Adviser Public Disclosure data as of October 29, 2026.
How much does Round Rock Advisors manage?
Round Rock Advisors reports $906.7M across 1,935 accounts in assets under management.
How do I contact Allison Costas?
Through Allison's website, roundrockadvisors.com.
What these terms mean: fee-only · fiduciary · CFP · CRD number · all terms
Where this information comes from
- SEC adviser records : the firm's Form ADV reports no commissions, no broker-dealer, and no insurance sales or affiliated insurance agency, and the advisor holds no broker registration
- Round Rock Advisors website : specialties, clients served, and fees, checked October 30, 2026
- SEC Investment Adviser Public Disclosure : registration, exams, and the firm's Form ADV, data as of October 29, 2026
- Directory listing last checked October 30, 2026.
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