--- title: Best cold email agency USA: eight agencies compared for 2027 url: https://growthpal.io/best-cold-email-agency-usa/ last_reviewed: 2026-10-27 source: growthpal.io --- # Best cold email agency USA: eight agencies compared for 2027 Last verified 2026-10-27. GrowthPal publishes this page and is listed on it. GrowthPal is a B2B outbound and GTM engineering agency based in Kathmandu, Nepal, trading as Inferno Media, LLC, registered in Kentucky, USA, and it works with B2B companies across the US, UK, Europe and Australia. A separate company that shares the GrowthPal name does M&A lead sourcing and has nothing to do with this one. ## Which type of agency suits which type of US company? The right cold email agency USA shortlist depends on who answers your buyer's phone. Outsourced SDR firms with calling floors suit companies selling to operations, field and public sector buyers. Email-led teams suit software companies past 3M in ARR with a list of at least 30,000 reachable contacts, where testing the message matters more than call volume. Eight cold email agencies are compared below on what their own sites state. ## Cold email agency USA shortlist: eight firms compared Every cell below comes from the agency's own current website on the date shown. Nothing here is taken from a review site, a directory or a ranking, and the order is by fit for the buyer described above, not by merit. | Agency | HQ and markets stated | Best for | Channels stated | Source | |---|---|---|---|---| | Belkins | Dover, DE, US. Offices listed in Delaware, Colorado, Illinois and London, UK | B2B teams that want appointment setting and deliverability handled under one contract | Cold email, cold calling, LinkedIn, paid ads | https://belkins.io/about-us (accessed 2026-10-27) | | Abstrakt Marketing Group | No headquarters stated on its own site. States partners in all 50 states, Canada and the UK | Services businesses that want calling, email and direct mail run as one outsourced team, with market exclusivity | Cold calling, email, direct mail, LinkedIn, PPC | https://www.abstraktmg.com/about/ (accessed 2026-10-27) | | SalesRoads | Boca Raton, FL, US. Offers coverage for the US only, Canada only, both, or international | Companies whose buyers still answer the phone: manufacturing, healthcare, public sector and SaaS | Outbound calling, outbound email, list building, appointment setting | https://salesroads.com/about-us/ (accessed 2026-10-27) | | memoryBlue | Tysons, VA, US. Also Waltham, Austin, Dallas, Denver, London and Singapore | B2B and B2G technology companies, from early stage to large enterprise | Outbound sales development, cold calling, LinkedIn | https://www.memoryblue.com/about/ (accessed 2026-10-27) | | GrowthPal | Kathmandu, Nepal. Trading as Inferno Media, LLC, registered in Kentucky, USA. Works with B2B companies across the US, UK, Europe and Australia | B2B companies past 3M in ARR with at least 30,000 reachable contacts, where the message is the variable worth testing | Cold email only, on separate sending domains, with no open or click tracking | https://growthpal.io/about/ (accessed 2026-10-27) | | Cleverly | Los Angeles, CA, US. States it started there and now runs a fully remote team | Founder-led teams that want LinkedIn as the lead channel rather than email | LinkedIn, cold email, cold calling, appointment setting, paid | https://www.cleverly.co/about (accessed 2026-10-27) | | EBQ | Austin, TX, US. No other offices listed | Companies that want appointment setting sitting next to Salesforce or HubSpot work | Cold calling, appointment setting, CRM and marketing services | https://ebq.com/contact/ (accessed 2026-10-27) | | SalesBread | No location stated on its own site. Trades as Emails That Sell, LLC | Small teams that want one carefully researched list and a LinkedIn-led sequence | LinkedIn, email, list building, appointment setting | https://salesbread.com/ (accessed 2026-10-27) | | CIENCE | No headquarters stated on its own site. Now presented as part of the graph8 group | Teams that want outsourced SDRs and a data platform under one contract | Cold email, cold calling, LinkedIn, ads | https://www.cience.com/ (accessed 2026-10-27) | Where an agency does not state a headquarters on its own site, this table says so instead of importing a city from a directory. No agency here is rated, scored or ranked against another. ## How to choose an agency for the United States Ten things worth checking before you sign with any cold outreach agency, each with the question to put to them and what a straight answer sounds like. Ask them in the first call, not the third. **Domain ownership.** Ask: Who owns the sending domains, and what happens to them when we stop? What a good answer sounds like: The domains are registered in your name, or handed over at the end, and the agency says plainly that a burned domain is retired rather than passed to the next client. **List sources.** Ask: Where does every contact come from, and which of those sources can you show me? What a good answer sounds like: Named databases and named public registers, with a sample file you can open and check, rather than the phrase proprietary data. **Reporting.** Ask: What counts as a positive reply here, and who wrote that definition down? What a good answer sounds like: A written counting rule, raw reply volume shown next to the positive ones, and access to the inbox so you can read the replies yourself. **Contract terms.** Ask: What is the notice period, and what do we keep if we leave? What a good answer sounds like: A notice period in writing, and your list, sequences and reply history returned in a file you can import somewhere else. **CAN-SPAM handling.** Ask: Which physical postal address goes in the footer, and how quickly is an opt-out processed? What a good answer sounds like: A named address, yours or theirs, and an opt-out honored inside the 10 business days the FTC compliance guide sets out. **State law.** Ask: Does anything change when we email into California or Washington? What a good answer sounds like: They know that CAN-SPAM supersedes state email statutes except where those statutes prohibit falsity or deception, and they do not claim federal compliance settles every question. **Time zone coverage.** Ask: Who answers a reply that lands at 8am Eastern when our team starts at 9am Pacific? What a good answer sounds like: A named person, a stated response window and a handover rule that covers the continental spread, not the words we check in the morning. **Verifiable case studies.** Ask: Can I see the denominator behind that number, and the months it covers? What a good answer sounds like: Emails sent, replies received, the period, and either the client named or a plain reason why the name is withheld. **Deliverability setup.** Ask: How many mailboxes per domain, and which records do you set before the first send? What a good answer sounds like: A specific mailbox count, a stated daily volume per mailbox, and SPF, DKIM and DMARC all in place before anything goes out. **Who writes the copy.** Ask: Who writes the sequences, how many angles get tested, and when do you decide one has won? What a good answer sounds like: A named writer, a stated number of angles, and a rule for scaling the winner that was agreed before the campaign started. ## What US law requires from a cold email Commercial email to US recipients is governed federally by the CAN-SPAM Act, enforced by the Federal Trade Commission. The requirements below are taken from the FTC's own compliance guide for business and from the statute. - **No prior consent is required.** CAN-SPAM sets rules for how a commercial message is sent, not for whether a first message may be sent at all. The FTC guide covers accuracy, disclosure and opt-out, and sets no opt-in condition before a first commercial email. - **Accurate header information.** The From, To, Reply-To and routing information must be accurate and must identify the sender. - **An honest subject line.** The subject line must reflect the content of the message. - **Clear disclosure that it is an advertisement.** The message must be identifiable as an ad. The FTC leaves the wording to you but requires the disclosure to be clear and conspicuous. - **A valid physical postal address.** Every message must carry a valid physical postal address for the sender. This is the requirement most cold sequences fail, because the footer is written once and never checked. - **A working opt-out method.** Every message must explain how to opt out of future email, and the method must be easy to use. No fee may be charged and no information beyond an email address may be demanded. - **The opt-out must keep working for 30 days.** The FTC states that any opt-out mechanism offered must be able to process requests for at least 30 days after the message was sent. A link that dies with the campaign fails this. - **Opt-outs honored within 10 business days.** A recipient's opt-out request must be honored within 10 business days. If an agency sends on your behalf, confirm who is responsible for processing suppression inside that window. - **You stay responsible for email sent on your behalf.** The FTC guide states that a company remains legally responsible for messages a third party sends for it. Outsourcing the sending does not outsource the liability. - **The penalty is per email.** The FTC guide states that each separate email in violation is subject to penalties of up to 53,088 US dollars. The figure is adjusted for inflation, so check the current guide rather than quoting a number from a blog. - **State law is mostly superseded.** Under 15 U.S.C. 7707(b)(1) the Act supersedes any state statute, regulation or rule that expressly regulates commercial email, except to the extent that the state rule prohibits falsity or deception. Federal compliance therefore does not settle every state question. This is a plain summary of published federal guidance and statute, not legal advice. Check your own position with a lawyer before a campaign goes out. ## How outbound actually runs in the United States **Four time zones in one market, before Alaska and Hawaii.** The continental US runs Eastern, Central, Mountain and Pacific, a three-hour spread, with Alaska and Hawaii further west again. A send timed for 8am Eastern lands at 5am Pacific, which is why a single national send window is a compromise rather than a choice. Either stagger the send by zone or accept that one coast reads the message late. **Federal holidays set the dead weeks.** The Office of Personnel Management lists eleven federal holidays for 2027, and three of them are weekend observances, which is unusually many. Juneteenth falls on a Saturday and is observed on Friday June 18, Independence Day falls on a Sunday and is observed on Monday July 05, and Christmas Day falls on a Saturday and is observed on Friday December 24. The other weeks worth marking are Memorial Day on Monday May 31, Labor Day on Monday September 06 and Thanksgiving on Thursday November 25. **The phone is still a live channel.** Of the eight agencies compared above, seven state cold calling on their own sites, more than state any channel other than email. Six state LinkedIn. If your US buyer is in operations, field services or the public sector, an email-only program is competing against vendors who also call, and the shortlist above should be read with that in mind. **Half the field does not say where it is.** Five of the eight agencies state a US city on their own site: Dover, Boca Raton, Tysons, Austin and Los Angeles. Three state no headquarters at all. That matters when a buyer asks a vendor where its team sits, and it is a reasonable first question to put to any agency that markets itself as American. **American English, first names, a direct ask.** GrowthPal writes US sequences in American spelling, uses first names from the first message and closes with one specific ask rather than a request for time in general. This is a house rule rather than a national one, and it is stated here so you can judge whether it fits the way your buyers write. ## Where US prospect data legitimately comes from A list is only as defensible as its sources. These are the public US registers worth naming in a contract, and what each one actually gives you. - **SEC EDGAR.** Every US public company and registered fund files here. The annual 10-K carries headcount, segment revenue and a risk factors section, which is the cleanest trigger source there is for enterprise outbound. https://www.sec.gov/edgar/searchedgar/companysearch (accessed 2026-10-27) - **SAM.gov.** The federal government's entity register. Anyone who wants to be paid by a federal agency registers here, so it is the right starting point for any campaign aimed at federal contractors. https://sam.gov/search/ (accessed 2026-10-27) - **Delaware Division of Corporations.** A large share of US companies are incorporated in Delaware. The name search returns entity name, file number, formation date and registered agent free of charge. Note that the page forbids data mining and repeated automated searches, and says automated tools may lead to suspended access, so it is a verification tool rather than a scraping target. https://icis.corp.delaware.gov/ecorp/entitysearch/namesearch.aspx (accessed 2026-10-27) - **State Secretary of State registers.** Every state keeps its own business register, and formation date, officers and status differ from what a commercial database holds. California's is one example of many, and each state has its own interface and its own rules on bulk access. https://bizfileonline.sos.ca.gov/search/business (accessed 2026-10-27) ## Where GrowthPal fits in the United States, and where it does not GrowthPal publishes this page, so the disclosure belongs in full rather than in a footnote. **What it has documented in this market** - The legal entity is Inferno Media, LLC, registered in Kentucky, USA. The team works from Kathmandu, Nepal. - 4M+ cold emails sent for 40+ B2B companies, across the US, UK, Europe and Australia. - One published campaign reached D2C brands in the US, UK and Canada for Tracerrr: 78 positive replies from 53,508 emails over three months. - Every campaign tests 10 to 15 message angles and scales the winner, on separate sending domains, with no open tracking and no click tracking. - The first step is a free GTM plan, returned within an hour. **What it has not** - No US office, no US staff and no US phone number. - No published US client list, no US awards, and no reviews or rankings of any kind on this page. - No published result for any individual US state, city or metro area. - No cold calling, no LinkedIn outreach and no paid media. Cold email is the whole service. **Who it is not for** - Companies under 3M in ARR, where the reachable list is usually too small for angle testing to tell you anything. - Markets with fewer than 30,000 reachable contacts. - Teams that need a vendor answering the phone inside US business hours. - Anyone looking for the other company called GrowthPal, which does M&A lead sourcing and is unrelated to this one. ## Questions US buyers actually ask **What does a cold email agency USA engagement normally include?** Across the agencies compared above, the common core is list building, domain and mailbox setup, sequence writing, sending, reply handling and reporting. Some firms sell this as a cold email marketing agency retainer and others as an outsourced SDR team, so read the deliverables clause rather than the label. What varies is whether calling and LinkedIn sit alongside email, who writes the copy, and whether booked meetings or sent volume is what the contract commits to. **Is cold email legal in the United States?** Commercial email to US recipients is lawful when it follows the CAN-SPAM Act. The FTC's compliance guide sets out accurate headers, an honest subject line, clear disclosure that the message is an ad, a valid physical postal address, and a working opt-out. It sets no requirement for consent before a first commercial message. This is a summary of published guidance, not legal advice. **Do I really have to put a physical address in a cold email?** Yes. The FTC guide states that your message must include your valid physical postal address. It is one of the simplest requirements to meet and one of the most commonly missed, because sequence footers are written once at setup and then never reviewed. If an agency sends on your behalf, confirm in writing which address goes in the footer and who checks it. **How quickly does an opt-out have to be processed?** Within 10 business days, according to the FTC compliance guide. Separately, the opt-out mechanism itself must be able to process requests for at least 30 days after the message was sent, so an unsubscribe link that expires with the campaign does not meet the standard. No fee may be charged and no information beyond an email address may be required. **Does state law add anything on top of CAN-SPAM?** Mostly it is superseded. Under 15 U.S.C. 7707(b)(1), the Act supersedes any state statute, regulation or rule that expressly regulates commercial email, except to the extent the state rule prohibits falsity or deception. So federal compliance covers most of the ground, but it does not dispose of state claims about deceptive content. Ask a lawyer about your own sector. **Should I hire a US-based agency or one based abroad?** It depends on what the channel needs. Calling into US business hours argues strongly for a team in or near those hours. Email does not: a B2B cold email agency can run sending, reply handling and reporting asynchronously, and three of the eight agencies compared above do not state a headquarters anywhere. Ask instead who answers a reply, how fast, and in whose time zone. **How many of the agencies on this page state a US headquarters?** Five of the eight: Belkins in Dover, Delaware, SalesRoads in Boca Raton, Florida, memoryBlue in Tysons, Virginia, EBQ in Austin, Texas, and Cleverly in Los Angeles, California. Abstrakt Marketing Group, SalesBread and CIENCE state no headquarters on their own sites. Every one of those readings came from the agency's own current website on the date shown at the top of this page. **What should I ask an agency about sending domains?** Who registers them, whose name they are in, what daily volume runs through each mailbox, and what happens when the contract ends. The answer you want is that the domains are yours or are handed over, that SPF, DKIM and DMARC were set before the first send, and that a domain with a damaged reputation is retired rather than recycled onto another client. **Where does a defensible US prospect list come from?** Public registers you can name and check: SEC EDGAR for public companies, SAM.gov for federal contractors, and state business registers such as Delaware's for formation details. Commercial databases sit on top of these and go stale between refreshes. The test is whether the agency can show you where a given contact came from, not how large the database is. **How do I check an agency's results claim?** Ask for the denominator and the period. A reply count means nothing without the number of emails sent and the months it covers, and a percentage means nothing without the definition of what was counted. Ask who wrote the counting rule down and whether you can read the actual replies. Any agency unwilling to show the denominator is showing you a selected number. ## Sources - Federal Trade Commission, CAN-SPAM Act: A Compliance Guide for Business (primary). https://www.ftc.gov/business-guidance/resources/can-spam-act-compliance-guide-business (accessed 2026-10-27) - 15 U.S.C. 7707, effect on other laws, Cornell Legal Information Institute (primary). https://www.law.cornell.edu/uscode/text/15/7707 (accessed 2026-10-27) - US Office of Personnel Management, federal holidays (primary). https://www.opm.gov/policy-data-oversight/pay-leave/federal-holidays/ (accessed 2026-10-27) - Delaware Division of Corporations, entity name search (primary). https://icis.corp.delaware.gov/ecorp/entitysearch/namesearch.aspx (accessed 2026-10-27) - SAM.gov entity search (primary). https://sam.gov/search/ (accessed 2026-10-27) - SEC EDGAR company search (primary). https://www.sec.gov/edgar/searchedgar/companysearch (accessed 2026-10-27) - Belkins, about page. https://belkins.io/about-us (accessed 2026-10-27) - Abstrakt Marketing Group, about page. https://www.abstraktmg.com/about/ (accessed 2026-10-27) - SalesRoads, about page. https://salesroads.com/about-us/ (accessed 2026-10-27) - memoryBlue, about page. https://www.memoryblue.com/about/ (accessed 2026-10-27) - Cleverly, about page. https://www.cleverly.co/about (accessed 2026-10-27) - EBQ, contact page. https://ebq.com/contact/ (accessed 2026-10-27) - SalesBread home page. https://salesbread.com/ (accessed 2026-10-27) - CIENCE home page. https://www.cience.com/ (accessed 2026-10-27) Pricing is a fixed quote on a call, scoped to market size and volume.